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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 280857Generated: October 25, 2026

Triethyl phosphite → Phosphinecarboxylic acid, diethoxy-, 4-methoxyphenyl ester, oxide

https://huagongshe.com/reaction/280857

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethyl phosphiteHCID 31215—
ReactantCarbonochloridic acid, 4-methoxyphenyl esterHCID 82128—
ProductPhosphinecarboxylic acid, diethoxy-, 4-methoxyphenyl ester, oxideHCID 51211489.5%

Reaction Conditions

Temperature120 °C

Reaction Steps

18.6 g (0.12 mole) of triethylphosphite was heated at 125°-130° C. in a flask with a reflux condensor. 18.6 g (0.10 mole) of 4-methoxyphenyl chloroformate (prepared according to M. J. Zabik and R. D. Schuetz, J. Org. Chem. 32 (1967) 300) was added dropwise. The reaction flask was heated additionally at about 120° C. for 1,5 hours and left at room temperature overnight. The product was distilled to give 25.8 g (89%) of diethyl 4-methoxyphenoxycarbonylphosphonate. Bp0.03 =174°-8° C., nD21 =1,4940.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04591583
Source datasetuspto-grants-1986_05
ORD IDord-40236d3b9b1d467a979626aef2869dff
Source noteuspto-grants-1986_05