Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1635362Generated: 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/1635362

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 numberUS06509328B1
Source datasetuspto-grants-2003_01
ORD IDord-312934e1155a4685bfcb96b4b9521686
Source noteuspto-grants-2003_01