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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 579819Generated: October 25, 2026

Hydrochloric Acid → Tris(2-chloroethyl) phosphite

https://huagongshe.com/reaction/579819

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthylene OxideHCID 6354—
ReactantPhosphorus trichlorideHCID 24387—
ReactantBis(2-chloroethyl) P-(2-chloroethyl)phosphonateHCID 80518—
ProductTris(2-chloroethyl) phosphiteHCID 8783—
ProductPhosphonic dichloride, ethenyl-HCID 74035—

Reaction Steps

Tris-(2-chloroethyl) phosphite is prepared from phosphorus trichloride and ethylene oxide, and bis(2-chloroethyl) 2-chloroethanephosphonate, inter alia, is formed therefrom by Arbusov rearrangement. After phosgenation and splitting off of hydrogen chloride by means of heat, vinylphosphonic acid dichloride results, which, after purification by distillation, is hydrolyzed with water to give pure vinylphosphonic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04749758
Source datasetuspto-grants-1988_06
ORD IDord-3418be5aea174ca3be6d10d7b2f74b87
Source noteuspto-grants-1988_06