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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2117281Generated: October 30, 2026

Ethyl Acetate → (+/-)-5-chloro-4-(3,4-difluorobenzyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one

https://huagongshe.com/reaction/2117281

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant(+/-)-1-(2-Amino-6-chlorophenyl)-2-(3,4-difluorophenyl)ethanolHCID 69318113—
Product(+/-)-5-chloro-4-(3,4-difluorobenzyl)-1,4-dihydro-2H-3,1-benzoxazin-2-oneHCID 6931543064%

Reaction Steps

This compound was prepared using General Method 2 (EXAMPLE 1) from (±)-1-(2-amino-6-chlorophenyl)-2-(3,4-difluorophenyl)ethanol (0.28 g, 1.1 mmol) to afford 0.21 g (64%) of (±)-5-chloro-4-(3,4-difluorobenzyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one after flash chromatography (4:1 hexanes:ethyl acetate).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07442696B2
Source datasetuspto-grants-2008_10
ORD IDord-880ff0ba66ce4620b60c7bee49fd0f89
Source noteuspto-grants-2008_10