Dimethyl acetylenedicarboxylate → HCID 21860267, compound

HRID 2392525Notes

Reaction equation

HRID 2392525 reaction equation
[NH2:1][C:2]1[N:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:5]=[C:4]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[C:3]=1[C:19]#[N:20].[C:21]([C:27]([O:29][CH3:30])=[O:28])#[C:22][C:23]([O:25][CH3:26])=[O:24]>>[NH2:20][C:19]1[C:22]([C:23]([O:25][CH3:26])=[O:24])=[C:21]([C:27]([O:29][CH3:30])=[O:28])[N:1]=[C:2]2[N:6]([C:7]3[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=3)[N:5]=[C:4]([C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=3)[C:3]=12

Participants

3

Reactant 2

HCID 12980Dimethyl acetylenedicarboxylateHCID 27546195-amino-1,3-diphenylpyrazole-4-carbonitrile

Product 1

HCID 21860267HCID 21860267, compound

Procedure

Using 2.60 g (10 mmol) of 5-amino-1,3-diphenylpyrazole-4-carbonitrile [see J. Org. Chem., 29, 1915 (1964)] and 1.42 g (10 mmol) of dimethyl acetylenedicarboxylate, the entitled product having a melting point of 277° to 279° C. was obtained in the same manner as in Example 2-(2).

Workup

  1. customwas obtained in the same manner as in Example 2-(2)

Sources & evidence

ORD record
ord-c274db0a2ffb4a01b4f29da2b7007240
Source dataset
uspto-grants-1998_09
Patent number
US05801008

Reaction notes

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