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PART 38. (N2G)-, (N26: X)-, AND (X :N26: X) -CHROMOPHORES
compound
system
N26
pyridazine
ref.
no.
248
340
3.1
2.5
H4
6130
H
246
250
339
2.8
2.8
2.6
E24
6131
W
243
248
299
3.1
3.1
2.5
E24
6132
*2
299
2.2
E24
6133
A
244
278-80
3.4
2.5
B78
6134
W
243
272
3.4
2.5
B78
6135
0.0
242
3.6
B78
6136
A
260
311
3.7
2.8
B26
6137
cH
260
322
3.8
3.0
H4
6138
3-methylpyridazine
A
251
310
3.1
2.6
010
6139
2-methylpyrimidine
A
249
3.5
B78
6140
W
248
3.5
B78
6141
0.0
251-2
3.9
B78
6142
A
245
3.4
B78
6143
W
244
3.5
B78
6144
0.0
244
3.7
B78
6145
1-ethylpyrazinium bromide
A
272
3.9
H4
6146
4 , 6-dimethylpyrimidine
A
245.5
3.3
B79
6147
W
246
3.6
B79
6148
0.0
208.5
247
3.3
3.6
B79
6149
pyrazine
4-methylpyrimidine
C2-N2S
loge
cH
pyrimidine
C-N2S
solv. ^max.
system
compound
N-N2S
loge
ref.
no.
cH
223
324
3.9
3.0
H4
6150
10.2
251
292
3.6
3.1
B79
6151
l-ethyl-2,5-dimethylpyrazinium bromide
A
286
4.0
H4
6152
2-aminopyrimidine
A
227
297
4.2
3.6
B78
6153
W
225
290
4.0
3.4
S74
6154
3.0
220
300
4.1
3.6
S74
6155
A
236
272-3
4.3
3.7
B78
6156
W
234
268
4.1
3.6
B78
6157
0.0
246
4.3
B78
6158
233
268-9
4.3
3.7
B78
6159
A
246
315
4.1
3.5
B78
6160
W
236
298
4.0
3.5
B78
6161
1.0
253
332
4.2
3.6
B78
6162
W
234
306-7
4.2
4.3
B147
6163
1.0
228
315
4.2
3.5
B147
6164
2.1
254
4.2
B147
6165
9.0
242
276-7
4.2
3.5
B147
6166
W
243
318
4.3
3.4
B147
6167
1.0
235
324-5
4.2
3.5
B147
6168
3.2
262
4.2
B147
6169
2 , 5-dimethylpyrazine
C3~N26
solv. ^max.
2,4, 6-trimethy lpyrimidine
4-aminopyr imidine
13.0
5-aminopyrimidine
2- (methylamino) pyr imidine
4- (methylamino) pyrimidine
2- (dimethylamino) pyr imidine
4- (dime thy lamino) pyr imidine
system
solv.
compound
N2-N2S
4.2
3.6
B147
6170
5-acetamidopyrimidine
W
236
4.1
W16
6171
5-benzamidopyrimidine
W
256
4.2
W16
6172
*1
265
4.4
W16
6173
3-nitraminopyridazine
A
282
325
3.3
3.3
D22
6174
2-anthranilamidopyrimidine
7.0
257
4.3
V3
6175
2 , 4-diaminopyrimidine
6.5
267
3.6
C20
6176
4 , 5-diaminopyrimidine
3.2
284
3.9
M18
6177
8.0
246
289
3.9
3.9
M18
6178
6.5
260
3.6
C20
6179
268
306
3.7
3.8
B134
6180
*2
208
304
4.2
3.9
B134
6181
5.9
234
278.5
M8g
6182
*3
253
M8g
6183
*4
258.5
M8g
6184
4-amino-5-f ormamidopyrimidine
5-f ormyl-5 ,6,7, 8-tetrahydropteridine
2,4, 5-triaminopyrimidine
2,4, 6-triaminopyrimidine
5N HC1/W
*2
no.
250
286
5,6,7, 8-tetrahydropteridine
*1
ref.
9.3
4 , 6-diaminopyrimidine
N3-N2S
max. loge
acid soln.
*3
O. IN HC1/W
*4
O. IN NaOH/W
260
302
3.9
3.8
B134
6185
*2
218
276
4.1
4.0
B134
6186
0.0
268
3.6
M18
6187
5.2
228
295
4.2
3.6
M18
6188
9.8
232-4
303
3.9
3.7
M18
6189
2.3
272
3.6
C20
6190
system
compound
C20
6191
268
Ell
6192
-0.8
265
4.0 M18
6193
3.6
287
4.0
M18
6194
8.0
277
380
3.9
2.4
M18
6195
1.0
277
Ell
6196
11.0
270
Ell
6197
1.0
280
Ell
6198
11.0
272
Ell
6199
2.3
265
3.6
C20
6200
6.5
259
3.6
C20
6201
2.2
273
3.6
C21
6202
6.3
250
283
3.5
3.6
C21
6203
11.0
240
280
Ell
6204
2 , 4 , 5-triamino-6- (methylamino)pyrimidine1.0
275
Ell
6205
11.0
240
280
Ell
6206
1.0
280
Ell
6207
11.0
240
282
Ell
6208
2.3
272
3.6
C20
6209
6.5
268
3.6
C20
6210
W
229
299
3.9
3.3
010
6211
*1
228
297
3.8
3.2
010
6212
W
234
4.1
010
6213
4, 6-diamino-5-f ormamidopyrimidine
2,4,5, 6-tetraminopyrimidine
2 , 5-diamino-4 , 6-bis (methylamino) pyrimidine
2,4, 6-triamino-5-f ormamidopyrimidine
3-amino-6-methylpyridazine
3-acetamido-6-methylpyridazine
*1 monohydrochloride/W
no.
11.0
2-amino-4,6-bis (me thylamino) pyrimidine
3.6
ref.
270
2 , 4-diamino-6- (methy lamino) pyrimidine
NC-N2S
loge
6.5
4,5, 6-triaminopyrimidine
N4-N2S
solv. \nax.
system
compound
D22
6214
*1
291
3.8
D22
6215
W
291
342
3.6
3.7
D22
6216
*1
297
3.4
D22
6217
0.0
222
299
4.1
3.7
M15
6218
13.0
225
289
4.1
3.6
M15
6219
W
236
3.9
W34
6220
*1
245
4.0
W34
6221
*2
231
272
4.0
3.6
W34
6222
W
234
270
3.9
3.7
W34
6223
*1
254
4.0
W34
6224
*2
231
269
4.0
3.7
W34
6225
W
237
4.0
W34
6226
*1
250
4.1
W34
6227
*2
234
268
4.0
3.6
W34
6228
0.0
253
324
4.1
3.6
M15
6229
13.0
234
293
3.9
3.6
M15
6230
5-amino-l-me thy lpy r imidinium iodide
W
256
337
4.2
3.6
W16
6231
2-amino-4 , 6-dimethylpyrimidine
A
229
290
4.3
3.9
B79
6232
5.6
226
287
4.0
3.7
B79
6233
4-amino-2-methylpyrimidine
4-amino-5-methylpyrimidine
4-amino-6-methylpyrimidine
5-amino-4-methylpyrimidine
*2
no.
3.7
3.8
2-amino~4-methylpyrimidine
K salt
ref.
280
329
3-methyl-6- (methylnitramino) pyr idazine
*1
loge
A
3-methyl-6-nitraminopyridazine
NC2-N2S
solv. ^max.
0.001M HCl
*3
0.005M NaOH
compound
system
6234
*1
244
4.0
W34
6235
*2
231
272
4.0
3.7
W34
6236
W
242
3.9
W34
6237
*1
249
4.0
W34
6238
*2
236
266
4.0
3.6
W34
6239
W
239
264
3.8
3.9
W34
6240
*1
258
3.9
W34
6241
*2
234
270
3.8
3.6
W34
6242
A
236
274
3.9
3.7
H65
6243
0.3
246
4.1
H65
6244
6.3
235
277
4.0
3.7
H65
6245
*3
<210
288
L27
6246
4.0
5,6,7, 8-tetrahydro-4 , 6-dimethylpteridine *3
213
306
4.1
4.0
L27
6247
*3
<210
277
L27
6248
3.7
*3
233
290
4.5
3.4
L27
6249
2-amino-5 ,6,7, 8-tetrahydro-4 , 6-dimethyl- *3
pteridine
212
233
4.3
4.0
L27
6250
2- (diethylamino) -5,6,7, 8-tetrahydro4 , 6-dimethylpteridine
*3
235
4.4
L27
6251
2-methoxypyrimidine
A
267.5
3.7
B78
6252
W
264
3.7
B78
6253
4-amino-2-methyl-5- (piperidinomethyl) pyrimidine
4 , 5-diamino-6-methylpyrimidine
2,4,5-triamino-6-methylpyrimidine
4 , 5-diamino-2- (diethylamino) -6-methylpyrimidine
0.001M HCl
*2
no.
3.9 W34
3.8
4-amino-5 , 6-dimethylpyrimidine
*1
ref.
236
266
4-amino-2 , 6-dimethylpyrimidine
0-N26
loge
W
4-amino-2 ,5-dimethylpyrimidine
N3C-N2S
solv. ^max.
0.005M NaOH
*3
O. IN HC1/W
system
compound
4-methoxypyrimidine
O2-N2S
2,4-dimethoxypyrimidine
OC-N2S
3-methoxy-6-methylpyridazine
2 -me thoxy-4-me thy lpy r imidine
4-methoxy-6-methylpyrimidine
OC2-N2S
2-methoxy-4 , 6-dimethylpyrimidine
ON-N2S
4-amino-2-ethoxypyr imidine
solv. \nax.
4-amino-6-methoxy-2-methylpyrimidine
ONC2-N2S
4-amino-6-methoxy-2-methyl-5(piperidinomethyl) pyrimidine
S-N2S
*1 monohydrochloride
2 -methyl thiopyr imidine
ref.
no.
0.0 273-4
3.7 B78
6254
W
247-8
3.5 B147
6255
0.0
227-8
3.9 B147
6256
257
3.8 A43
6257
A
271
3.3 010
6258
*1
272
3.3
010
6259
W
264
3.7 M15
6260
0.0
272
3.9 M15
6261
11.0
264
3.7 M15
6262
W
213
247
3.7 M15
3.5
6263
1.0
244
3.9 M15
6264
13.0
213
247
3.7 M15
3.5
6265
10.2
264
3.8 B79
6266
3.0
268
3.6
S74
6267
7.0 224
276
4.1
3.7
S74
6268
224
276
4.1
3.7
S74
6269
237
3.9 H65
6270
A
242
3.8 H65
6271
0.3
241
272
3.7 H65
3.8
6272
6.3
240
3.8 H65
6273
A
251
286
4.2 B78
3.3
6274
W
250
4.1 B78
6275
0.0
214.5
255
310
3.4 B78
4.2
3.5
6276
11.0
ONC-N2S
loge
system
compound
4-methyl-2-methylthiopyrimidine
SC-N2S
4-methyl-6-methylthiopyrimidine
solv. ^max.
loge
ref.
no.
0,0
215
253
304
3.8
4.2
3.7
M15
6277
7.0
210
250
3.6
4.4
M15
6278
11.0
210
250
3.6
4.1
M15
6279
1.0
233
300
3.8 M15
4.3
6280
7.0
213
277
3.8
4.0
M15
6281
11.0
213
277
3.8 M15
4.0
6282
SC2-N2S
4 , 6-dimethyl-2-methylthiopyrimidine
5.6
250
4.1
B31
6283
SN-N2S
4-amino-2-methylthiopyrimidine
A
223.5
286.5
4.4
3.9
B79
6284
W
224
285
4.3
3.8
B79
6285
0.0
241
4.5
B79
6286
A
225
248
282
4.4
4.1
3.9
B79
6287
W
225
248
280
4.3
4.1
3.9
B79
6288
0.0
241
4.5
B79
6289
*1
268
4.2
G25
6290
*2
291
4.4
G25
6291
*1
267
3.8
G25
6292
*2
267
3.8
G25
6293
A
257
4.3
B78
6294
W
251
4.2
B78
6295
0.0
256-8
287
4.1
3.9
B78
6296
SNC-N2S
4-amino-6-methyl-2-methylthiopyrimidine
SO2-N2S
2 , 6-dimethoxy-4-pyrimidinyl disulf ide
2, 6-dimethoxypyrimidine-4-sulf onic acid
2-chloropyrimidine
Cl-N2S
*1
O. IN HC1/A
*2
O. IN NaOH/ A
system
Cl2-N2S
compound
ClC-N2S
*1
hydrochloride/A
ref.
no.
*1
248
3.5
B78
6297
5-chloropyrimidine
A
258
293
3.3
2.5
B78
6298
W
211
258
3.9
3.4
B78
6299
0.0
211-2
260
3.7
3.4
B78
6300
chloropyraz ine
cH
270
297
3.9
3.1
H4
6301
3 , 6-dichloropyridazine
A
271
304
3.1
2.7
H4
6302
2 , 4-dichloropyrimidine
M
257
3.6
UOn
6303
W
258
3.7
B79
6304
A
219
268
4.2
3.5
B79
6305
W
219
272
4.2
3.5
B79
6306
A
253
3.3
B79
6307
W
254
3.7
B79
6308
2 , 3-dichloropyrazine
cH
213
279
3.8
3.6
H4
6309
2 , 5-dichloropyrazine
cH
217
273
3.9
3.6
H4
6310
2 , 6-dichloropyrazine
cH
217
273
3.8
3.6
H4
6311
2 , 4 , 5-trichloropyrimidine
A
225
274
4.1
3.6
B79
6312
2,4, 6-trichloropyrimidine
W
263
3.7
B79
6313
tetrachloropyrimidine
W
232
278
3.9
3.7
B79
6314
tetrachloropyrazine
cH
233
310
4.1
4.0
H4
6315
3-chloro-6-methylpyridazine
A
265
309
3.1
2.5
H4
6316
4 , 6-dichloropyrimidine
Cl4-N2S
log e
4-chloropyrimidine
2 ,5-dichloropyrimidine
Cl3-N2S
solv. ^max.
system
ClC2-N2S
compound
2-chloro-4 , 6-dimethylpyrimidine
solv.
ClN-N2S
263
3.2
010
6317
*1
262
3.2
010
6318
A
254
3.6
B79
6319
W
254.5
3.7
B79
6320
265
3.2
H4
6321
W
258
3.7
B79
6322
4 , 6-dichloro-2-methylpyrimidine
A
256
3.8
B79
6323
W
257.5
3.8
B79
6324
3.0
257
262
3.8
3.8
M41
6325
7.0
235
275
4.0
3.8
M41
6326
11.0
234
269
272
4.1
3.9
3.9
M41
6327
3.0
300
3.6
S74
6328
7.0
229
296
4.1
3.6
S74
6329
11.0
229
296
4.1
3.6
S74
6330
A
237
316
4.4
3.6
B79
6331
W
235
311
4.4
3.6
B79
6332
0.0
233
325
4.3
3.6
B79
6333
1.0
298
Ell
6334
11.0
282
Ell
6335
4-amino-2-chloropyrimidine
2-amino-5-chloropyrimidine
Cl2N-N2S
*1 monohydrochloride
no.
2 ,4-dichloro-6-methylpyrimidine
2-amino-4-chloropyrimidine
ClN2-N2S
ref.
W
3-chloro-l-ethyl-6-methylpyridazinium
bromide
Cl2C-N2S
max. loge
2 , 4-diamino-6-chloropyrimidine
5-amino-2 , 4-dichloropyrimidine
*2
5N HC1/W
W
250
316
4.23.6
W16
6336
*2
265
340
4.0
3.4
W16
6337
system
compound
2-amino-4 , 6-dichloropyrimidine
solv. ^max.
loge
ref.
no.
A
236
298.5
4.2
3.7
B79
6338
W
233
298.5
4.2
3.8
B79
6339
A
232
294
4.2
3.7
B79
6340
W
230
292
4.1
3.7
B79
6341
0.0
211.5
302.5
4.3
3.8
B79
6342
4-amino-6-chloro-2-me thy 1-5- (piper idinomethyl) pyrimidine
240
277
3.9
3.7
H65
6343
4-chloro-2-methyl-5-(piperidinomethyl)6-[ (piperidinome thy l)amino] pyrimidine
248
4.1
H65
6344
2-chloro-8-ethyl-5 ,6,7, 8-tetrahydro-4methylpteridine
307
3.9
B134
6345
*1
225
316
4.2
4.0
B134
6346
A
217.5
261
294
3.9
3.3
2.5
B78
6347
W
216.5
261
4.0
3.5
B78
6348
0.0
219.5
265
3.9
3.6
B78
6349
bromopyrazine
cH
274
309
3.9
3.1
H4
6350
Br2-N2S
2 , 6-dibromopyrazine
cH
274
3.9
H4
6351
Br3-N2S
tribromopyrazine
cH
289
307
4.1
4.0
H4
6352
BrC-N2S
5-bromo-2-methylpyrimidine
A
218
266
4.0
3.3
B79
6353
W
219
267
4.1
3.5
B79
6354
A
238
315.5
4.3
3.5
B79
6355
ClNC-N2S
ClNC2-N2S
ClN2C-N2S
Br-N2S
BrN-N2S
*1
acid solution
2-amino-4-chloro-6-methylpyrimidine
5-bromopyrimidine
2-amino-5-bromopyrimidine
compound
system
2-amino-5-bromo-4 , 6-dimethylpyrimidine
BrNC2-N2S
5-bromo-2-methylthiopyrimidine
BrS-N2S
solv. ^max.
loge
ref.
no.
W
237
311.5
4.3
3.5
B79
6356
0.0
235
326
4.3
3.6
B79
6357
A
237
302
4.3
3.7
B79
6358
W
235.5
301
4.3
3.7
B79
6359
A
218
262
3.6
4.6
B79
6360
W
218.5
260.5
3.5
4.3
B79
6361
NiNiN-N 2 S-NiNiN
2 , 4-diazidopyr imidine
A
239
285
4.3
3.9
B53
6362
NiNiN-N 2 ^HMiNiN
C
2 , 4-diazido-6-methylpyrimidine
A
239
279
4.4
4.0
B53
6363
N2C-N2S-NiC-C2
2-amino-7 , 8-dihydro~4 , 6-dimethylpteridine
*1
226
291
4.5
4.0
L27
6364
2- (diethylamino) -7 , 8-dihydro-4 , 6dimethylpteridine
*1
244
295
4.5
4.0
L27
6365
ClNC-N2S-NiC-C2
2-chloro-7 , 8-dihydro-4 , 6 -dime thy 1pteridine
*1
217
V302
4.4
3.8
L27
6366
NC-N2S-CiN
4-amino-5-cyano-2-me thy lpyr imidine
3.0
242
293
4.0
3.7
S74
6367
7.0
242
293
4.0
3.7
S74
6368
*2
247
280
4.0
3.6
S74
6369
0.0
257
3.6
B78
6370
13.0
253
3.5
B78
6371
13.0
245-6
3.3
B78
6372
495
2.5
L19
6373
251
4.2
B78
6374
4-pyrimidinecarboxylic acid
N2S-CiO
5-pyrimidinecarboxylic acid
OiC-N2S-CiO
iron (II) 2 , 3-pyrazinedicarboxylate
N26-6
2-pheny lpyr imidine
*1
O. IN HC1/W
*2
O. IN NaOH/W
W
system
C-N26-6
C2-N2S-S
compound
solv. ^max.
loge
ref.
no.
0.0
256-8
287
4.1
3.9
B78
6375
5-phenylpyrimidine
A
256
4.1
M8
6376
4-methyl-2-phenylpyrimidine
A
257
4.4
B79
6377
W
252
4.4
B79
6378
4-methyl-6-phenylpyrimidine
A
273
4.3
M8
6379
4 , 6-dimethyl-2-phenylpy rimidine
A
258
4.3
M8
6380
W
251
4.2
B79
6381
4.0
M8
6382
Cl-N2S-S
4-chloro-5-phenylpyrimidine
A
250
Cl-N2S-S-Cl
4-chloro-5- (o-chlorophenyl) pyrimidine
A
^252
Cl2C-N2S-S
4 , 6-dichloro-2-methyl-5-phenylpyrimidine A
254
3.8
M8
6384
N26-c;c-6
N26-c: c-c:c-s
4-s ty ry lpyr imidine
C
316
4.4
K49
6385
4- (4-pheny 1-1, 3-butadienyl) pyrimidine
C
344
4.6
K49
6386
N2S-[CiC]3-S
4- (6-phenyl-l , 3 , 5-hexatrienyl) pyrimidineC
370.5
4.7
K49
6387
N2S-[CiC]4-S
4- (8-phenyl-l ,3,5, 7-octatetraenyl) pyrimidine
C
393.5
4.9
K49
6388
N2S-[CiC]5-S
4- (10-phenyl-l ,3,5,7, 9-decapentaenyl) pyrimidine
C
414.5
4.9
K49
6389
N2S-[CiC]6-S
4- (12-phenyl-l ,3,5,7,9, 11-dodecahexaenyl) pyrimidine
C
432
5.0
K49
6390
N2S-[CiC]7-S
4- (14-pheny 1-1 ,3,5,7,9,11, 13- tetradecaheptaenyl) pyrimidine
C
447
5.0
K49
6391
N2S-N iN-6
5-(phenylazo)pyrimidine
*1
232
315
4.0
4.2
W16
6392
2 ,4-diazido-6-phenylpyrimidine
A
248
309
4.5
4.2
B53
6393
N2S-NiC-S-NiO
6
5- (p-nitrobenzylideneimino) pyrimidine
A
303
4.3
W16
6394
N2SiO
1 , 6-dihydro-6-pyridazinone
W
280
3.6
010
6395
1 , 2-dihydro-2-pyr imidinone
0.3
309
3.8
B78
6396
^N26
*1
10% A/W
3. 7
M8
6383
system
compound
solv.
no.
4.0
3.7
B78
6397
13.0
290
3.7
B78
6398
0.0
225
252-4
4.2
3.7
B78
6399
4.9
227.5
4.0
B78
6400
13.0
227
264-5
4.0
3.6
B78
6401
W
285
3.3
010
6402
*1
282
3.5
010
6403
A
286
3.2
G28
6404
1 , 2-dihydro-4 (or 6) -methyl-2-pyrimidinone1.0
305
3.9
M15
6405
7.0
213
296
4.1
3.8
M15
6406
13.0
220
290
4.1
3.8
M15
6407
1 , 6-dihydro-3-methyl-6-pyridazinone
1 , 6-dihydro-2-methyl-6-pyrimidinone
A
226.5
268
3.8
3.5
W34
6408
1 , 6-dihydro-4-methy 1-6-pyr imidinone
0.0
229
4.0
M15
6409
4.7
228
3.9
M15
6410
13.0
230
261
4.0
3.6
M15
6411
A
229
262
3.8
3.6
W34
6412
W
239
261
3.7
3.6
W34
6413
*2
230
264
3.8
3.6
W34
6414
*3
232
266
3.9
3.7
W34
6415
1 , 4-dihydro-l-methyl-4-pyrimidinone
240
4.2
B143
6416
1 , 6-dihydro-l-methyl-6-pyrimidinone
220
271
3.8
3.6
B143
6417
1 , 6-dihydro-5-methyl-6-pyrimidinone
monohydrochloride/W
ref.
215
299
l,6-dihydro-l-methyl-6-pyridazinone
*1
loge
6.1
1 , 4-dihydro-4-pyrimidinone
C-N2SiO
max.
*2
0.001N HCl
*3
0.005M NaOH
compound
system
C2-N2s:o
solv. 'Snax.
ref.
no.
1 , 6-dihydro-l , 3-dimethyl-6-pyridazinone A
294
3.4
G28
6418
1 , 2-dihydro-4 , 6-dimethy 1-2-pyr imidinone 12.9
223
289
3.9
3.7
B79
6419
228
259
3.8
3.7
W34
6420
229.5
266
3.8
3.8
W34
6421
W
238
264
3.8
3.8
W34
6422
*1
232
262
3.9
3.7
W34
6423
*2
230
264
3.9
3.8
W34
6424
1 , 6-dihydro-4 , 5-dimethyl-6-pyrimidinone A
234
260
3.9
3.9
W34
6425
1 , 6-dihydro-l , 4-dimethyl-6-pyrimidinone 0.0
231
3.9
M15
6426
7.0
224
268
3.8
3.6
M15
6427
0.0
307
4.0
Ml5
6428
7.0
218
297
3.8
3.8
M15
6429
1, 6-dihydro-2 , 4-dimethyl-6-pyrimidinone
A
1 , 6-dihydro-2 , 5-dimethyl-6-pyrimidinone A
C3-N2S-1O
loge
1 , 2-dihydro-l , 4 , 6-trimethyl-2pyrimidinone
C4-N2SiO
1, 2-dihydro-l, 3, 4, 6-tetramethy 1-2oxopyrimidinium iodide
0.0
223
311
4.2
4.1
M15
6430
N-N2SiO
4-amino-l, 2-dihydro-2-pyrimidinone ;
cytosine
4.0
274
4.0
S74
6431
7.4
266
3.8
S74
6432
11.0
278
3.8
S74
6433
4.0
223
258
3.9
3.8
S74
6434
7.2
222
267
4.1
3.7
S74
6435
9.0
218
276
4.0
3.7
S74
6436
*3
290
4.1
B80
6437
2-amino-l , 6-dihydro-6-pyrimidinone
5-amino-l , 6-dihydro-6-pyrimidinone
*1
0.001N HCl
*2
0.005M NaOH
*3
IN HC1/W
system
N2-N2SiO
compound
loge
ref.
no.
248
282
3.9
3.9
B80
6438
4-amino-l , 6-dihy dro-6-pyrimidinone
6.5
257
3.6
C20
6439
N- (1 , 2-dihydro-2-oxopyrimidin-4-yl) glycine
3.0
259
3.8
S74
6440
7.0
265
3.8
S74
6441
11.0
275
3.8
S74
6442
2.3
305
3.8
M18
6443
7.0
292
3.6
M18
6444
13.0
226
303
3.9
3.7
M18
6445
2.7
273
4.4
S74
6446
7.2
270
4.2
S74
6447
10.9
270
4.4
S74
6448
2.3
265
3.6
C20
6449
6.5
267
3.6
C20
6450
4 , 5~diamino-l , 6-dihydro-6-pyrimidinone -0.8
257
3.8 M18
6451
6.7
278
372
4.0
2.4
M18
6452
12.0
272
370
3.9
2.6
M18
6453
1.0
268
Ell
6454
11.0
268
Ell
6455
2.3
257
3.6
C20
6456
6.5
258
3.6
C20
6457
4,5, 6-triamino-l , 2-dihydro-2-pyrimidinone2.0
281
4.0
S74
6458
6.4
281
3.9
S74
6459
11.0
281
3.7
S74
6460
2,4, 5-triamino-l , 6-dihydro-6-pyrimidinone2.0
264
4.6
S21
6461
4 , 5-diamino-l , 2-dihydro-2-pyrimidinone
2 , 4-diamino-l, 6-dihydro-6-pyrimidinone
2-amino-4-(2-hydroxyethylamino)-l,6dihydro-6-pyr imidinone
4-amino-5-f ormamido-1 , 6-dihydro-6pyrimidinone
*1 O. IN NaOH /W
max.
*1
4 , 6-diamino-l , 2-dihydro-2-pyr imidinone
N3-N2SiO
solv.
system
compound
N-(2,5-diamino-l,6-dihydro-6-oxo-4pyrimidinyl) glycine
4 , 6-diamino-5-f ormamido-1 , 2-dihydro2-pyrimidinone
2 , 4-diamino-5-f ormamido-1 , 6-dihydro6-pyrimidinone
2 , 4-diamino-5-benzamido-l , 6-dihydro6-pyrimidinone
solv. ^max.
6.3
245
275
11.0
240
280
1.0
280
11.0
4-amino-l , 6-dihydro-2-methyl-6pyrimidinone
Ell
6463
4.1
H70
6464
245
286
3.9
3.9
H70
6465
2.3
271
3.6
C20
6466
6.5
271
3.6
C20
6467
2.3
265
3.6
C20
6468
6.5
267
3.6
C20
6469
11.0
265
4.1
H70
6470
228-30
4.4
W36
6471
259
4.3
W36
6472
A
259
3.7
H65
6473
0.3
260
4.1
H65
6474
6.3
260
3.9
H65
6475
232
272
4.3
4.0
H65
6476
1 , 6-dihydro-2-methyl-4-piper idino-6pyrimidinone
NC2-N2SiO
*1
O. IN NaOH/W
no.
6462
*1
3.6
3.6
ref.
C21
2 , 4-diamino-l , 6-dihydro-5-sulf anilamido- *1
6-pyrimidinone
NC-N2SiO
loge
4-amino-l , 6-dihydro-l , 3-dimethy 1-6pyridazinone
A
278
3.8
010
6477
4-amino-l, 6-dihydro-2-me thyl-5(piperidinomethyl)-6-pyrimidinone
A
268
3.9
H65
6478
0.3
258
4.0
H65
6479
6.3
262
3.8
H65
6480
1, 6-dihydroxy-2-methyl-4- (methylamino) 5- (piperidinomethyl) -6-pyrimidinone
222
268
4.5
3.9
H65
6481
1 , 6-dihydro-2-methyl-5- (piperidinomethyl) -4- [ (piperidinomethyl) amino]6-pyrimidinone
217
268
4.4
3.8
H65
6482
system
compound
N2C-N2SiO
solv. ^max.
logs
ref.
no.
4-amino-l , 6-dihydro-l , 2 -dime thy 1-6pyrimidinone
220
264
4.5
3.7
H65
6483
4,5-diamino-l,2-dihydro-6-methyl-2*1
pyrimidinone ; 5 , 6-diamino-l , 2-dihydro4-methyl-2-pyrimidinone
214
293
4.1
3.9
L27
4684
1,2, 5, 6, 7, 8 (or 2,3,5,6,7 ,8) -hexahydro- *1
4, 6-dimethyl-2-pteridinone
230
325
4.0
3.8
L27
6485
N2C2-N2SiO
4 , 5-diacetamido-l , 6-dihydro-l , 3-dimethyl-6-pyridazinone
W
278
4.1
010
6486
o-N26 : o
1 , 6-dihydro-4-hydroxy-6-pyr imidinone
2.9
270
328
3.7
3.9
S74
6487
7.0
270
328
3.7
4.0
S74
6488
11.9
270
328
3.7
4.0
S74
6489
274
3.7
A43
6490
1 , 2-dihydro~4-methoxy-l-methyl-2pyrimidinone
OC-N2SiO
1 , 6-dihydro-4-hydroxy-2-methyl-6pyr imidinone
1 , 6-dihydro-2-methoxy-4-methyl-6pyrimidinone
4-ethoxy-l , 6-dihydro-2-methy 1-6pyrimidinone
2 , 5-diamino-l , 6-dihydro-4-hydroxy-6pyrimidinone
ON2-N2SiO
2-amino-5-(chloroacetamido)-l,6-dihydro4-hydroxy-6-pyr imidinone
*1
O. IN HC1/W
*2
dil. HC1/W
*3
dil. KOH/W
W
252
F17
6491
*2
253
F17
6492
*3
253
F17
6493
4.6
253
3.9
M15
6494
13.0
222
263
3.8
3.9
M15
6495
3.0
227
256
4.0
3.6
S74
6496
7.0
266
3.7
S74
6497
11.0
266
3.6
S74
6498
1.0
236
282
3.8
3.9
H70
6499
11.0
254
4.2
H70
6500
1.0
260
4.1
H70
6501
11.0
256
4.3
H70
6502
system
compound
SC-N2S-O
1 , 6-dihydro-4-methyl-2-methylthio-6pyrimidinone
SN-N2S-O
solv.
max.
loge
ref.
no.
13.0
247
274
3.9
3.8
B79
6503
5-amino-2-ethylthio-l , 6-dihydro-6pyrimidinone
*1
263
295
4.0
3.9
B80
6504
5-acetamido-l , 6-dihydro-2-methylthio6-pyrimidinone
*1
256
291
4.1
4.1
B80
6505
SOC-N2SiO
5-butyl-l , 6-dihydro-4-hydroxy-2isopropylthio-6-pyrimidinone
*1
269
4.0
W25
6506
Ci-N2S: o
5-chloro-l , 2-dihydro-2-pyrimidinone
13.0
230
311
4.3
3.7
B79
6507
ClC2-N2SiO
4-chloro-l,6-dihydro-l,3-dimethyl-6pyridazinone
A
306
3.6
010
6508
Cl2C2-N2SiO
4 , 5-dichloro-l , 6-dihydro-l , 3-dimethyl- A
6-pyridazinone
306
3.6
010
6509
ClN-N2S-O
2-amino-4-chloro-l , 6-dihydro-6pyrimidinone
1.0
284
Ell
6510
11.0
275
Ell
6511
Br-N2SiO
5-bromo-l , 2-dihydro-2-pyrimidinone
13.0
229
312
4.3
3.6
B79
6512
BrSC-N2SiO
5-bromo-l , 6-dihydro-4-methyl-2-methylthio-6-pyrimidinone
13.0
254
286
3.9
3.9
B79
6513
N2SiOI-S
l,6-dihydro-3-phenyl-6-pyridazinone
A
250
4.0
D21
6514
C-N2SiOI-S
1 , 6-dihydro-3-methy l-l-phenyl-6pyridazinone
A
313
3.8
010
6515
1 , 6-dihydro-4-methyl-2-phenyl-6pyridazinone
A
293
C74
6516
13.0
231
277
B79
6517
1, 6-dihydro-2-methyl-4-phenyl-6pyrimidinone
A
291
C74
6518
5-amino-l , 6-dihydro-3-methyl-l-phenyl6-pyridazinone
A
302
3.8
Oil
6519
5-acetamido-l,6-dihydro-3-methyl-l~
phenyl-6-pyridazinone
C
309
3.7
Oil
6520
1 , 6-dihydro-5-hydroxy-3-methyl-l-phenyl- C
6-pyridazinone
335
3.7
Oil
6521
N2SiOl-S
OC-N2SiOI-S
*1
O. IN NaOH/W
4.3
3.9
system
compound
solv. ^max.
5-ethoxy-l , 6-dihydro-3-methy 1-1-pheny 16-pyridazinone
A
297
5-tert . -butyl-1 , 6-dihydro-4-hydroxy-2phenyl-6-pyrimidinone
A
302
13.0
233
280
loge
3.8
ref.
no.
Oil
6522
F17
6523
4.3
3.9
B79
6524
Cl-N2SiO! -6
4-chloro-l , 6-dihydro-2-phenyl-6pyrimidinone
ClC-N2S! Ol -6
5-chloro-l , 6-dihydro-3-methyl-l~phenyl~
6-pyridazinone
A
319
3.8
Oil
6525
C-N2S :0|-6-Br
1- (p-bromophenyl) -1 , 6-dihydro-3-methy 16-pyridazinone
A
315
3.9
Oil
6526
S-N2SiOI-S
l,6-dihydro-2,4-dipheny 1-6-pyrimidinone
D
322
C74
6527
N2-N2SiOI-NiN-S
254-diamino-l, 6-dihydro-5-phenylazo~6pyrimidinone
*1
246
4.3
B54
6528
N2-N2SiO -N: c-s
2 , 4-diamino-5-(benzylideneamino)-l, 6dihydro-6-pyrimidinone
W
236
285
3.6
3.5
W36
6529
C-N2SiOI-S-N-O
1 , 6-dihydro-l- (p-nitrophenyl) -3-methyl- A
6-pyridazinone
327
4.0
Oil
6530
NC-N2SiOi-S-NiO
6
5-amino-l , 6-dihydro-l- (p-nitrophenyl) 3-methyl~6-pyrimidinone
A
325
3.8
Oil
6531
5-acetamido-l , 6-dihydro-l- (p-nitrophenyl) -3-methy 1-6-pyrimidinone
A
324
3.9
Oil
6532
OC-N2SiOI-S-NiO
5-ethoxy-l, 6-dihydro-l- (p-nitrophenyl) 3-methyl-6-pyrimidinone
A
320
4.0
Oil
6533
ClO-N2SiOI-S-NiO
5-chloro-l , 6-dihydro-l- (p-nitrophenyl) - A
3-methy 1-6-pyrimidinone
244
330
4.0
4.0
Oil
6534
N2SiS
1, 2-dihydro-2-pyrimidinethione
0.0
208
285
378
3.9
4.5
3.2
B78
6535
4.9
278
346
4.3
3.4
B78
6536
13.0
231
270
3.7
4.2
B78
6537
0.0
306
4.3
B78
6538
4.5
285
327
4.0
3.9
B78
6539
6
6
1 , 4-dihydro-4-pyrimidinethione
*1
O. IN NaOH/W
system
compound
solv.
max.
loge
292-4
4.0
B78
6540
0.0
221
285
366
3.9
4.4
3.2
M15
6541
4.7
215
277
338
4.0
4.3
3.5
M15
6542
11.0
269
4.2
M15
6543
0.0
312
4.3
M15
6544
4.7
288
322
4.0
4.1
M15
6545
11.0
292
4.2
M15
6546
0.0
223.5
284
356
4.1
4.6
3.4
B79
6547
7.0
217.5
276
332
4.1
4.4
3.7
B79
6548
13.0
269
4.3
B79
6549
0.0
225
283
355
3.9
4.4
3.4
M15
6550
7.0
220
277
332
4.0
4.2
3.6
M15
6551
1.0
231
293
4.0
4.3
M18
6552
6.5
271
4.2
M18
6553
12.4
221
269
312
4.2 Ml 8
4.2
3.7
6554
*1
235
286
4.6
4.4
S74
6555
7.4
245
292
4.3
4.1
S74
6556
13.0
c-N26 : s
l,2-dihydro-4-methyl-2~pyrimidinethione
13 6-dihydro-4-methyl-6-pyrimidinethione
C2-N2S: s
C3-N2SiS
N2-N2SiS
1 , 2-dihydro-4 , 6-dimethyl-2-pyrimidine~
thione
1, 2-dihydro-l, 4, 6-trimethyl-2pyrimidine thione
4, 5 (or 5,6)-diamino-l,2-dihydro-2pyrimidine thione
4,6-diamino-l,2-dihydro-2-pyrimidinethione
*1
O. IN HC1/W
ref.
no.
system
compound
solv. \nax.
9.0
loge
ref.
no.
245
292
4.2
4.2
S74
6557
N3-N2SiS
4,5, 6-triamino-l , 2-dihydro-2-pyrimidinethione
245
295
4.1
4.1
S74
6558
O2-N2S : s
1 , 6-dihydro-2 , 4-dimethoxy-6-pyrimidine- *1
thione
*2
311
4.3
G25
6559
290
4.3
G25
6560
3.0
248.5
4.5
B79
6561
7.0
214
260
283
3.9
4.1
4.3
B79
6562
268.5
316.5
4.5
4.4
B79
6563
1 , 6-dihydro-4-mercapto-6-pyrimidinethione
S-N2SiS
13.0
Cl-N2SiS
5-chloro-l , 2-dihydro-2-pyrimidinethione 13.0
227
279
3.9
4.4
B79
6564
OiN2SiO
1,2,3, 4-tetrahydro-2 , 4-pyrimidinedione ; 3.0
uracil
7.0
258
3.9
S74
6565
258
3.9
S74
6566
11.0
282
3.8
S74
6567
3.0
264
3.9
S74
6568
7.0
264
3.9
S74
6569
11.0
290
3.7
S74
6570
A
260
B53
6571
4.6
261
4.0
M15
6572
7.4
260
4.0
B35n
6573
13.0
277
3.8
M15
6574
1,2,3, 4-tetrahydro-l-methyl-2 , 4pyrimidinedione; 1-methyluracil
268
4.0
A43
6575
1,2,3, 4-tetrahydro-3-methy 1-2 , 4pyrimidinedione; 3-methyluracil
259
3.8
A43
6576
3.0
258
4.0
L29
6577
7.0
257.5
4.0
L29
6578
1,2,3, 4-tetrahydro-5-methy 1-2 , 4pyrimidinedione; thymine
OiN2^iO
C
1,2,3, 4-tetrahydro-6-methyl-2 , 4pyrimidinedione; 6-methyluracil
1,2,3, 4-tetrahydro-l, 3-dimethyl-2 , 4pyrimidinedione ; 1 , 3-dimethyluracil
OiN2SiO
C2
*1
O. IN HC1/W
*2
O. IN NaOH/W
system
solv.
compound
OiN2SiO
C3
OiN2^iO
L29
6579
1,2 , 3, 4-tetrahydro-l , 3, 6-trimethyl-2 , 4-7.0
pyrimidinedione ; 1,3, 6-trimethyluracil
268
4.0
M15
6580
5-amino-l ,2,3, 4-tetrahydr o-2 , 4pyrimidinedione; 5-aminouracil
3.0
260
4.1
S74
6581
7.0
225
290
4.0
3.8
S74
6582
2.3
262
3.6
C20
6583
6.5
264
3.6
C20
6584
2.0
260
3.6
C21
6585
6.3
273
3.6
C21
6586
4.0
222
276
3.6
3.8
S74
6587
7.4
210
278
3.8
3.7
S74
6588
11.0
239
307
3.7
3.7
S74
6589
S2g
6590
M
254.5
327.5
W
257
4.4
H63
6591
*1
257
2.7
S74
6592
3.0
257
4.0
S74
6593
7.0
257
4.5
S74
6594
11.0
257
4.4
S74
6595
1,2,3, 4-tetrahydro-6-hydroxy-5-isopropyl- *2
2 , 4-pyrimidinedione ; 5~isopropy !barbituric acid
270.5
4.3
M25
6596
1,2,3, 4-tetrahydro-2 , 4-dioxopyrimidine- *3
6-sulfonic acid; uracil-6-sulfonic acid
*4
264
3.9
G25
6597
293
4.0
G25
6598
287
3.8
C99
6599
1,2,3, 4-tetrahydro-6-hydroxy-2 , 4pyrimidinedione; barbituric acid;
6-hydroxyuracil
OiN2^iO
OC
0.N2SiO
&
5-chloro-l , 2,3, 4-tetrahydro-6-methyl-2 , 4*5
pyrimidinedione ; 5-chloro-6-methyluracil
OiN 2 SiO
ClC
*1
IN HC1/W
*2
no.
4.0
l,2,3,4-tetrahydro-5-hydroxy-2,4pyrimidinedione; isobarbituric acid;
5-hydroxyuracil
O
ref.
256
5 , 6-diamino-l ,2,3, 4- tetrahydro-2 , 4pyrimidinedione ; 5 , 6-dimethyluracil
OiN2SiO
loge
11.0
6-amino~l, 2 , 3 , 4-tetrahydro-2 , 4pyrimidinedione; 6-aminouracil
OiN2^iO
N2
max.
0.5N NaOH/W
*3
O. IN HC1/W
*4
O. IN NaOH/W
*5
0.05N NaOH/W
system
OiN2SiO -CiO
OiN 2 SiOI-NiO
compound
so Iv.
max.
loge
ref.
no.
5-chloro-6- (chloromethyl) -1,2,3, 4-tetra- *1
hydro-6-methyl-2 , 4-pyrimidinedione ;
5-chloro-6-(chloromethyl)uracil
303
3.8
C99
6600
1,2,3, 4-tetrahydro-2 , 4-dioxopyrimidine-5-3.0
carboxylic acid; uracil-5-carboxylic
acid
7.0
216
270
4.1
4.0
S74
6601
216
270
4.1
4.0
S74
6602
11.0
232
290
4.0
4.1
S74
6603
3.0
235
300
3.8
4.0
S74
6604
7.0
235
338
3.9
4.0
S74
6605
11.0
240
358
3.8
4.2
S74
6606
B53
6607
1,2,3, 4-tetrahydro-5-nitro-2 , 4-pyrimidinedione; 5-nitrouracil
OiN2SiOI-S
1,2,3, 4-tetrahydro-6-phenyl-2 , 4pyrimidinedione; 6-phenyluracil
A
285
SiN2SiO
1,2,3, 4-tetrahydro-4-oxo-2-pyrimidinethione; 2-thiouracil
1.0
278
4.1
E12
6608
7.0
274
4.0
E12
6609
11.0
260
312
4.0
3.8
E12
6610
1.0
327
4.2
E12
6611
7.0
329
4.2
E12
6612
11.0
336
4.2
E12
6613
1,2,3, 4-tetrahydro-5-methyl-4-oxo-21.0
pyrimidinethione ; 5-methyl-2-thiouracil
7.0
281
4.3
E12
6614
279
4.2
E12
6615
11.0
265
311
4.2
3.9
E12
6616
1.0
l,2,3,4-tetrahydro-5-methyl-2-oxo-4pyrimidinethione ; 5-methyl-4-thiouracil
7.0
332
4.1
E12
6617
335
4.0
E12
6618
11.0
343
4.0
E12
6619
1,2,3, 4-tetrahydro-2-oxo-4-pyrimidinethione; 4-thiouracil
SiN2SiO
*1
0.05N NaOH/W
system
s: N2$:o
O
s.N2$:o
OC
s:N26: s
SiN2^: s
C
compound
l,2,3,4-tetrahydro-6-hydroxy-4-oxo-2pyrimidinethione ; 2- thiobarbituric
acid
solv. \nax.
M
1,2,3, 4-tetrahydro-5-methyl-2 , 4pyrimidinedithione ; 5-methyldithiouracil
283
ref.
no.
S2g
6620
239
273
3.8
4.1
S74
6621
239
273
3.8
4.1
S74
6622
11.0
239
273
4.6
4.1
S74
6623
1.0
283
340
4.3
4.1
E12
6624
7.0
286
362
4.3
4.0
E12
6625
11.0
277
362
4.2
3.9
E12
6626
1.0
286
340
4.2
3.9
E12
6627
7.0
283
363
4.2
3.9
E12
6628
11.0
275
365
4.2
3.8
E12
6629
5-ethyl-l, 2 , 3, 4-tetrahydro-6-hydroxy-4- 4.0
oxo-2-pyrimidinethione ; 5-ethyl-2-thiobarbituric acid
7.4
1,2,3, 4-tetrahydro-2 , 4-pyrimidinedithione; dithiouracil
loge
