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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2392525Generated: October 29, 2026

Dimethyl acetylenedicarboxylate → HCID 21860267, compound

https://huagongshe.com/reaction/2392525

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl acetylenedicarboxylateHCID 12980—
Reactant5-amino-1,3-diphenylpyrazole-4-carbonitrileHCID 2754619—
ProductHCID 21860267HCID 21860267—

Reaction Steps

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).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05801008
Source datasetuspto-grants-1998_09
ORD IDord-c274db0a2ffb4a01b4f29da2b7007240
Source noteuspto-grants-1998_09