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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 704921Generated: October 29, 2026

Water → HCID 14423207, compound

https://huagongshe.com/reaction/704921

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAnilineHCID 6115—
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantHCID 15135970HCID 15135970—
SolventBenzeneHCID 241—
ProductHCID 14423207HCID 14423207—

Reaction Steps

Reflux a solution of (2-bromophenyl)[2-(1-pyrrolidinyl)-1-cyclopenten-1-yl]-methanone (14.1 g) (from Preparative Example 1) in benzene (100 ml) containing aniline (4.5 ml) and p-toluenesulfonic acid monohydrate (8.8 g) for 19 hrs. Remove water continuously with a Dean-Stark trap. Wash the cooled solution with water, 1M NaHCO3 solution, and with water. Dry the benzene solution, filter it, and evaporate the solvent. Crystallize to obtain (2-bromophenyl)[2-(phenylamino)-1-cyclopenten-1-yl]-methanone, m.p. 106.5°-108.5° from CH3CN.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04988705
Source datasetuspto-grants-1991_01
ORD IDord-572d3553e04742ff842e486e29f9b6d5
Source noteuspto-grants-1991_01