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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 485250Generated: October 26, 2026

Benzocaine → HCID 903766, compound

https://huagongshe.com/reaction/485250

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzocaineHCID 2337—
ReactantDiethyl EtherHCID 3283—
ReactantTriethylamineHCID 8471—
Reactant3-(4-Methoxyphenyl)propionyl chlorideHCID 10932441—
SolventDichloromethaneHCID 6344—
ProductHCID 903766HCID 903766—

Reaction Steps

A solution of 13.73 g. of benzocaine and 11.56 ml. of triethylamine in 100 ml. of ether is slowly added to a stirred solution of 15 g. of p-methoxyhydrocinnamoyl chloride in 100 ml. of ether. The mixture is stirred overnight, 250 ml. of dichloromethane are added, and the mixture is extracted with 200 ml. of water, then 200 ml. of 10% hydrochloric acid, dried over magnesium sulfate, and evaporated to yield a solid. This solid is crystallized from 200 ml. of toluene, giving 21.4 g. of the desired product as white crystals, m.p. 134°-135.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04536346
Source datasetuspto-grants-1985_08
ORD IDord-fdc290e6cb2e41efb1da6384d46dcdfa
Source noteuspto-grants-1985_08