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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 428936Generated: October 30, 2026

Sodium Acetate → 1-Hexylpyrrole-2,5-dione

https://huagongshe.com/reaction/428936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium AcetateHCID 517045—
Reactant3-(hexylcarbamoyl)prop-2-enoic AcidHCID 2731432—
SolventAcetic AnhydrideHCID 7918—
Product1-Hexylpyrrole-2,5-dioneHCID 464134—

Reaction Conditions

Temperature110 °C

Reaction Steps

4-(Hexylamino)-4-oxo-2-butenoic acid (Preparation 54, 75.8 g, 0.38 mol) was partially dissolved in acetic anhydride (1.5 l) and sodium acetate (125.6 g, 0.19 mol) was added in one portion. The reaction mixture was gradually heated to 110° C. for 4 h. Acetic anhydride was removed in vacuo and the title compound was obtained by vacuum distillation of the crude residue to give a colourless oil (49.8 g, 72%) which partially crystallised upon standing.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06313312B1
Source datasetuspto-grants-2001_11
ORD IDord-83d2d8f8b8aa4d9882b86b8a9841c208
Source noteuspto-grants-2001_11