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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 928049Generated: October 29, 2026

Triethyl phosphite → Diethyl 3-fluorobenzylphosphonate

https://huagongshe.com/reaction/928049

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethyl phosphiteHCID 31215—
Reactant3-Fluorobenzyl bromideHCID 68007—
ProductDiethyl 3-fluorobenzylphosphonateHCID 11311157—

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 3-fluorobenzyl bromide (2 g) and triethyl phosphite (2.2 mL) was heated at 160° C. under nitrogen for 4 hours. After cooling, the were volatiles removed in vacuo and the residue was purified by chromatography on silica eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-100% to give diethyl (3-fluorobenzyl)phosphonate (2.46 g)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09290472B2
Source datasetuspto-grants-2016_03
ORD IDord-28b00569f5bf49409286c1aa20be08a0
Source noteuspto-grants-2016_03