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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 648303Generated: October 30, 2026

Benzocaine → HCID 20482520, compound

https://huagongshe.com/reaction/648303

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzocaineHCID 2337—
ReactantHexamethylphosphoramideHCID 12679—
ReactantHCID 20482581HCID 20482581—
SolventWaterHCID 962—
ProductHCID 20482520HCID 20482520—

Reaction Steps

A solution of 15 g. of 6-oxohexadecyl bromide and 15.6 g. of ethyl 4-aminobenzoate in 60 ml. of hexamethylphosphoramide is stirred at 120° C. for 18 hours, allowed to cool, and diluted with water. The mixture is filtered and the resulting solid is dissolved in methylene chloride. The solution is washed with diluted hydrochloric acid, dried, and evaporated to yield a brown solid. Crystallization from ethanol yields ethyl 4-(6-oxohexadecylamino)benzoate as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04411903
Source datasetuspto-grants-1983_10
ORD IDord-ad71a488bddb45558b205128f8389021
Source noteuspto-grants-1983_10