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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2051911Generated: November 1, 2026

Benzocaine → HCID 20378381, compound

https://huagongshe.com/reaction/2051911

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzocaineHCID 2337—
ReactantHexamethylphosphoramideHCID 12679—
ReactantBenzene, (2-bromoethoxy)-HCID 68526—
SolventWaterHCID 962—
ProductHCID 20378381HCID 20378381—

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 33 g of ethyl p-aminobenzoate, 80 ml of hexamethylphosphoramide and 20.1 g of β-bromophenetole is heated at 110° C. for 20 hours. The mixture is cooled, diluted with 25 ml of water, chilled, filtered and the solid washed with ethanol and with water to give crystals, mp 126°-129° C. Recrystallization from ethanol gives pale yellow crystals, mp 129°-131° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04182776
Source datasetuspto-grants-1980_01
ORD IDord-7ac1ae2d14734c9f8dfc8d5f3e7ea411
Source noteuspto-grants-1980_01