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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 482639Generated: October 29, 2026

Ethanol → HCID 178476779, compound

https://huagongshe.com/reaction/482639

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
ReactantPhenyl phosphorus dichlorideHCID 12573—
SolventDiethyl EtherHCID 3283—
ProductHCID 178476779HCID 178476779—

Reaction Steps

A solution of phenylphosphonous dichloride (66 g, 0.37 mol) in dry ether (100 mL) was treated dropwise with a solution of ethanol (21.6 mL, 0.37 mol) and pyridine (29.6 mL, 0.37 mol) in ether (200 mL) at room tempeature under argon. After stirring for one hour, a mixture of water (6.6 mL, 0.37 mol) and pyridine (29.6 mL) was added slowly. The reaction mixture was filtered, washed with ether, and the ether evaporated to give an oil. The oil was distilled in the Kugelrohr and then through a short Vigreux column at 95°-98° C. (0.05 mmHg); lit. (T. L. Emmick et al., J. Am. Chem. Soc., 1968, 90, 3459) 102°-103° C. (0.2 mmHg). Yield 44.3 g (70%). 1H NMR (CDCl3)δ 7.57 (d, J=569 Hz, 1H), 8.0-7.4 (m, 5H), 4.13 (2 q, JH-H =7 Hz, JP-H =14 Hz, 2H), 1.35 (t, J=7 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04574060
Source datasetuspto-grants-1986_03
ORD IDord-16042fe0be94458d9afe54ff61d6b922
Source noteuspto-grants-1986_03