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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2262573Generated: October 26, 2026

5-Hydroxy-3-phenyl-5-(trifluoromethyl)-4,5-dihydroisoxazole → 3-(4-Chlorophenyl)-5-(trifluoromethyl)isoxazole

https://huagongshe.com/reaction/2262573

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Hydroxy-3-phenyl-5-(trifluoromethyl)-4,5-dihydroisoxazoleHCID 2880976—
Reactant3-(4-Chloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-5-olHCID 2881161—
Product3-(4-Chlorophenyl)-5-(trifluoromethyl)isoxazoleHCID 79932198%

Reaction Steps

As described for Example 1b, 3-(4-chloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-5-ol (39.6 g, 149 mmol), instead of 3-phenyl-5-hydroxy-5-(trifluoromethyl)isoxazoline, was converted to the title compound (36.0 g, 98%) which was obtained as a light brown oil. MS: m/e=247.3 [M−H]−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851469B2
Source datasetuspto-grants-2010_12
ORD IDord-c837689e58f8465fb3ea26fde94cd2c7
Source noteuspto-grants-2010_12