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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2102152Generated: October 26, 2026

Carbon Tetrachloride → 3-(Chloromethyl)-5-[3,5-bis(trifluoromethyl)phenyl]isoxazole

https://huagongshe.com/reaction/2102152

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon TetrachlorideHCID 5943—
ReactantTriphenylphosphineHCID 11776—
Reactant{5-[3,5-bis(Trifluoromethyl)phenyl]-3-isoxazolyl}methanolHCID 57800356—
Product3-(Chloromethyl)-5-[3,5-bis(trifluoromethyl)phenyl]isoxazoleHCID 57800202—

Reaction Conditions

Temperature75 °C

Reaction Steps

To a solution of {5-[3,5-bis(trifluoromethyl)phenyl]-3-isoxazolyl}methanol (Example 323B) (0.100 g, 0.32 mmol) in dry carbon tetrachloride (15 mL) was added PS-triphenylphosphine (0.292 g, 2.2 mmol/g, 0.64 mmol). The reaction was heated at 75° C. overnight. The resin was filtered and washed with carbon tetrachloride. Concentration in vacuo afforded the title compound, which was used for the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07572820B2
Source datasetuspto-grants-2009_08
ORD IDord-17e5e8b08d6a44cb892837d19890c4cb
Source noteuspto-grants-2009_08