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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 354753Generated: October 27, 2026

Ethyl Bromide → 5-(o-chlorophenyl)-1,3-dihydro-3,3-dimethyl-7-nitro-2H-1,4-benzodiazepin-2-one

https://huagongshe.com/reaction/354753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl BromideHCID 6332—
Reactant5-(o-fluorophenyl)-1,3-dihydro-1,3,3-trimethyl-7-nitro-2H-1,4-benzodiazepin-2-oneHCID 20506156—
Reactant5-(o-chlorophenyl)-1-ethyl-1,3-dihydro-3,3-dimethyl-7-nitro-2H-1,4-benzodiazepin-2-oneHCID 20506167—
SolventDiethyl EtherHCID 3283—
Product5-(o-chlorophenyl)-1,3-dihydro-3,3-dimethyl-7-nitro-2H-1,4-benzodiazepin-2-oneHCID 20506168—

Reaction Steps

From 1.7 g (0.005 mol) of 5-(o-chlorophenyl)-1,3-dihydro-3,3-dimethyl-7-nitro-2H-1,4-benzodiazepin-2-one and ethyl bromide there is obtained, in analogy to the details in paragraph (c) of Example 1, with a reaction period of 36 hours, 5-(o-chlorophenyl)-1-ethyl-1,3-dihydro-3,3-dimethyl-7-nitro-2H-1,4-benzodiazepin-2-one of melting point 174° (ether).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04377522
Source datasetuspto-grants-1983_03
ORD IDord-a11385ada2f5437284056eaacf0d26c5
Source noteuspto-grants-1983_03