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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2096773Generated: October 25, 2026

(4-Chloro-3-(ethoxycarbonyl)phenyl)boronic acid → 2-Chloro-5-{3-chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-benzoic acid ethyl ester

https://huagongshe.com/reaction/2096773

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4-Chloro-3-(ethoxycarbonyl)phenyl)boronic acidHCID 44119820—
Reactant6-[(2-chloro-4-hydroxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-4-methyl-4H-benzo[1,4]oxazin-3-oneHCID 66697239—
CatalystCupric acetateHCID 8895—
SolventPyridineHCID 1049—
Product2-Chloro-5-{3-chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(4-methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-yl)-propyl]-phenoxy}-benzoic acid ethyl esterHCID 66697296—

Reaction Steps

In analogy to Example 5, 6-[2-(2-chloro-4-hydroxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-4-methyl-4H-benzo[1,4]oxazin-3-one (Example 56, step 4) was reacted with 4-chloro-3-(ethoxycarbonyl)benzeneboronic acid, copper-(II)-acetate and pyridine to give the title compound as a off-white solid. MS (m/e, ISP neg. ion)=596.3 [M−H+]

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08450313B2
Source datasetuspto-grants-2013_05
ORD IDord-6eda1abb029541b2a53754d0435e82fa
Source noteuspto-grants-2013_05