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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1745672Generated: October 31, 2026

Trifluoroacetic acid → 4-(3-Chloro-phenyl)-8-phenyl-1,3-dihydro-benzo[b][1,4]diazepin-2-one

https://huagongshe.com/reaction/1745672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant6-(3-Chloro-phenyl)-2,2-dimethyl-[1,3]dioxin-4-oneHCID 22224690—
ReactantN-(3-Amino[1,1'-biphenyl]-4-yl)-carbamic Acid tert-Butyl EsterHCID 57717454—
SolventDichloromethaneHCID 6344—
Product4-(3-Chloro-phenyl)-8-phenyl-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 2222493254.2%

Reaction Steps

Prepared from (3-amino-biphenyl-4-yl)-carbamic acid tert.-butyl ester (Example G9) (284 mg, 1.0 mmol) and 6-(3-Chloro-phenyl)-2,2-dimethyl-[1,3]dioxin-4-one (Example J6) (358 mg, 1.2 mmol) according to the general procedure K. The obtained material (339 mg) was deprotected and cyclized by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a yellow solid (188 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07018998B2
Source datasetuspto-grants-2006_03
ORD IDord-9512b16d8e914aea9fe5b1ddef92fdfc
Source noteuspto-grants-2006_03