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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 543356Generated: October 30, 2026

Ethanol → HCID 178476779, compound

https://huagongshe.com/reaction/543356

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 temperature 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)δ7.57 (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 numberUS04661615
Source datasetuspto-grants-1987_04
ORD IDord-5bcc75fa6a2b4ca896a9b19105971c64
Source noteuspto-grants-1987_04