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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1277983Generated: October 26, 2026

Water → 2,3-Dichloromaleic acid

https://huagongshe.com/reaction/1277983

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant2-Chloroethylamine hydrochlorideHCID 9793737—
ReactantDichloromaleic acid dichlorideHCID 14792716—
Product2,3-Dichloromaleic acidHCID 643797—

Reaction Steps

160 g of 10% strength sodium hydroxide solution were added to 40.1 g (0.4 mol) of 2-chloroethylamine hydrochloride, dissolved in 150 ml of water, and 22.2 g (0.1 mol) of dichloromaleic acid dichloride were then introduced slowly at room temperature. The product which precipitated was filtered off and dried. 19.7 g of dichloromaleic acid bis-(2-(chloroethyl)-amide of melting point 107°-110° C. were obtained, that is to say 64% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04279921
Source datasetuspto-grants-1981_07
ORD IDord-3ce2fd7120ca43d0a280f1250f648d89
Source noteuspto-grants-1981_07