Dimethyl acetylenedicarboxylate → HCID 70341625, compound
Reaction equation
[NH2:1][C:2]1[N:6](C2C=CC=CC=2)[N:5]=[C:4]([C:13]2[S:14][C:15]3[CH:21]=[CH:20][CH:19]=[CH:18][C:16]=3[CH:17]=2)[C:3]=1[C:22]#[N:23].[C:24]([C:30]([O:32][CH3:33])=[O:31])#[C:25][C:26]([O:28][CH3:29])=[O:27]>>[NH2:23][CH:22]1[C:25]([C:26]([O:28][CH3:29])=[O:27])=[C:24]([C:30]([O:32][CH3:33])=[O:31])[N:1]=[C:2]2[N:6]=[N:5][C:4]([C:13]3[S:14][C:15]4[CH:21]=[CH:20][CH:19]=[CH:18][C:16]=4[CH:17]=3)=[C:3]12Participants
3
Procedure
Using 3.16 g (10 mmol) of 5-amino-3-(benzothiophen-2-yl)-1-phenylpyrazole-4-carbonitrile and 1.42 g (10 mmol) of dimethyl acetylenedicarboxylate, the entitled product having a melting point of 218° to 220° C. was obtained in the same manner as in Example 2-(2).
Workup
- customwas obtained in the same manner as in Example 2-(2)
Sources & evidence
- ORD record
- ord-ae60214d9d1644e69804750e4ab33072
- Source dataset
- uspto-grants-1998_09
- Patent number
- US05801008
Reaction notes
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