New process for the preparation of 1-...

Details New process for the preparation of 1-... New process for the preparation of 1-...

C - Chemistry, Metallurgy

07

D

C07D 261/08 (2006.01) C07C 29/143 (2006.01) C07C 45/68 (2006.01)

Patent

CA 2747507

The present invention provides a process for the preparation of the compound 1- [5- (3-chloro-phenyl) -isooxazol-3-yl] - ethanone: Wherein the compound 5- (3-chlorophenyl) -isooxazol-3- carboxylate is reacted with CH3MgX. The present invention also provides a process for the preparation of (R) -1- [5- ( 3-chloro-phenyl) -isooxazol-3-yl] - ethanol : Wherein 1- [5- (3-chloro-phenyl) -isooxazol-3-yl] -ethanone is reduced to (R) -1- [5- (3-chloro-phenyl) -isooxazol-3-yl] -ethanol.

La présente invention concerne un procédé de synthèse du composé 1-[5-(3-chloro-phényl)-isoxazol-3-yl]-éthanone : où le composé 5-(3-chlorophényl)-isoxazol-3-carboxylate réagit avec CH3MgX. La présente invention concerne également un procédé de synthèse du composé (R)-1-[5-(3-chloro-phényl)-isoxazol-3-yl]-éthanol : où la 1-[5-(3-chloro-phényl)-isoxazol-3-yl]-éthanone est réduite en (R)-1-[5-(3-chloro-phényl)-isoxazol-3-yl]-éthanol.

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