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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 224369Generated: October 26, 2026

Ammonia → 7-Chloro-3-fluoro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one

https://huagongshe.com/reaction/224369

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant2-Amino-5-chlorobenzophenoneHCID 12870—
Reactant2-(alpha-Bromo-alpha-fluoroacetamido)-5-chlorobenzophenoneHCID 23332597—
Reactantalpha-Bromo-alpha-fluoroacetyl bromideHCID 23332663—
SolventDiethyl EtherHCID 3283—
Product7-Chloro-3-fluoro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-oneHCID 13125987—

Reaction Steps

A solution of 3.71 g. of 2-(α-bromo-α-fluoro-acetamido)-5-chlorobenzophenone, obtainable from 2-amino-5-chlorobenzophenone and α-bromo-α-fluoroacetyl bromide, in 100 ml. of ether and 60 ml. of 13% methanolic NH3 is allowed to stand for 18 hours at 20° and is evaporated. Working up in the customary manner, using water/methylene chloride, gives 3-fluoro-5-phenyl-7-chloro-2,3-dihydro-1H-1,4-benzodiazepin-2-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04232016
Source datasetuspto-grants-1980_11
ORD IDord-3be39c3562a64b79b714987da623365c
Source noteuspto-grants-1980_11