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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 867447Generated: October 30, 2026

2-Butynedioic acid → HCID 54267842, compound

https://huagongshe.com/reaction/867447

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Butynedioic acidHCID 371—
ReactantHCID 14390156HCID 14390156—
ProductHCID 54267842HCID 5426784213.1%

Reaction Steps

Prepared by the method described in Example 21 from N,N'-bis(3,4-dibromophenyl)thiourea (13.7 g, 25 mmoles) and acetylenedicarboxylic acid (2.7 g, 25 mmoles). Recrystallization from methanol gave the product (2.1 g), mp 235°-237° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04775677
Source datasetuspto-grants-1988_10
ORD IDord-8bcfc56e3664409a9192b7768e5b4949
Source noteuspto-grants-1988_10