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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 48324Generated: October 25, 2026

4-Bromo-2-fluorobenzoic acid → (8-Bromo-1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester

https://huagongshe.com/reaction/48324

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-2-fluorobenzoic acidHCID 302681—
Reactant(1-Methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl esterHCID 72957243—
Product(8-Bromo-1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl esterHCID 86585809—

Reaction Steps

(8-bromo-1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester was prepared in an analogous fashion to (1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester, prepared in Example 1, by replacing 2-fluorobenzoic acid with 2-fluoro-4-bromobenzoic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06703387B2
Source datasetuspto-grants-2004_03
ORD IDord-4b7538edaf3a4665a616b37f561b1936
Source noteuspto-grants-2004_03