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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 859519Generated: October 30, 2026

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

https://huagongshe.com/reaction/859519

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant{2-[3-(3-Nitro-phenyl)-3-oxo-propionylamino]-4-phenylethynyl-phenyl}-carbamic acid tert.-butyl esterHCID 86588018—
SolventDichloromethaneHCID 6344—
Product4-(3-Nitro-phenyl)-8-phenylethynyl-1,3-dihydro-benzo[b][1,4]diazepin-2-oneHCID 2222495085.3%

Reaction Steps

Prepared from {2-[3-(3-nitro-phenyl)-3-oxo-propionylamino]-4-phenylethynyl-phenyl}-carbamic acid tert.-butyl ester (Example K31) (970 mg, 1.94 mmol) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a light yellow solid (631 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07151098B2
Source datasetuspto-grants-2006_12
ORD IDord-922ec32ff69145c5a39cc5c16416f743
Source noteuspto-grants-2006_12