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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 485290Generated: October 26, 2026

Trimethyl phosphite → Hosphinecarboxylic acid, dimethoxy-, 3,4-dichlorophenyl ester, oxide

https://huagongshe.com/reaction/485290

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethyl phosphiteHCID 8472—
Reactant3,4-Dichlorophenyl carbonochloridateHCID 13077890—
ProductHosphinecarboxylic acid, dimethoxy-, 3,4-dichlorophenyl ester, oxideHCID 512117—

Reaction Steps

From 10.3 g (85 mmole) of trimethylphosphite and 13.5 g (60 mmole) of 3,4-dichlorophenyl chloroformate (100°, 2 hours). Yield 11.4 g (64%) B.p.0.04 154° C. nD20 1.5271. Solidifies to colourless crystals m.p. 58°-9° C. Analysis for C9H9Cl2O5P. Found (calculated): C 36.06 (36.14), H 3.31 (3.03), Cl 23.58 (23.71), P 10.50 (10.36). NMR (CDCl3)δ: 3.93 and 4.07 (CH3O), 7.0-7.6 (C6H3) IR (KBr)cm-1 : 1740 (CO), 1205, 1200, 1105, 1055, 1020.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04536400
Source datasetuspto-grants-1985_08
ORD IDord-2b44d81425ff481e93f4314ed81816d7
Source noteuspto-grants-1985_08