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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2163778Generated: October 26, 2026

Benzocaine → Ethyl 4-(15-methylhexadecyl)aminobenzoate

https://huagongshe.com/reaction/2163778

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzocaineHCID 2337—
ReactantHexamethylphosphoramideHCID 12679—
Reactant15-Methylhexadecyl bromideHCID 20437385—
SolventWaterHCID 962—
ProductEthyl 4-(15-methylhexadecyl)aminobenzoateHCID 20437391—

Reaction Steps

A mixture of 5 g. of 15-methylhexadecyl bromide and 5.2 g. of ethyl 4-aminobenzoate in 50 ml. hexamethylphosphoramide is heated for 17 hours at 120° C. The cooled solution is diluted with an equal volume of water and the resultant precipitate is filtered, washed with 100 ml. of 50% ethanol, dried, and crystallized from ethanol to yield a colorless crystalline solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04136256
Source datasetuspto-grants-1979_01
ORD IDord-557ff9b5bd514921ae43a2424a11f1a3
Source noteuspto-grants-1979_01