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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 867440Generated: October 30, 2026

2-Butynedioic acid → HCID 54140964, compound

https://huagongshe.com/reaction/867440

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Butynedioic acidHCID 371—
ReactantHCID 799650HCID 799650—
ProductHCID 54140964HCID 5414096452.6%

Reaction Steps

Prepared by the method described in Example 1 from N,N'-bis(2-phenylethyl)thiourea (20.0 g, 0.11 moles) and acetylenedicarboxylic acid (12.7 g, 0.11 moles). Rinsing the crude precipitate with toluene then hexane gave the product (22 g), mp 148°-149° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04775677
Source datasetuspto-grants-1988_10
ORD IDord-1ce92d492d324527887632a766aae7dd
Source noteuspto-grants-1988_10