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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 867443Generated: October 31, 2026

2-Butynedioic acid → HCID 54249932, compound

https://huagongshe.com/reaction/867443

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Butynedioic acidHCID 371—
ReactantThiourea, N,N'-diheptyl-HCID 3034741—
ProductHCID 54249932HCID 5424993288.4%

Reaction Steps

Prepared by the method described in Example 16 from N,N'-diheptylthiourea (18.0 g, 66 mmoles) and acetylenedicarboxylic acid (8.0 g, 66 mmoles). Recrystallization from acetonitrile gave the product (21.5 g), mp 80°-81° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04775677
Source datasetuspto-grants-1988_10
ORD IDord-489d7d59939f4659870cf4fcbfd6519a
Source noteuspto-grants-1988_10