Process for the preparation of (aryl)-(dimethyl)-(3-...

Details Process for the preparation of (aryl)-(dimethyl)-(3-... Process for the preparation of (aryl)-(dimethyl)-(3-...

C - Chemistry, Metallurgy

07

F

260/447.1, 260/3

C07F 7/08 (2006.01)

Patent

CA 1326039

ABSTRACT OF THE DISCLOSURE Description Process for the preparation of (aryl)-(dimethyl)-(3-(4- fluoro-3-aryloxyphenyl)propyl)silanes The present invention relates to a process for the pre- paration of compounds of the formula I Image (I) in which R1 denotes H, halogen, (C1-C4)-alkyl or (C1-C4)-alkoxy and R2 denotes H, halogen, (C1-C4)-alkyl, (C1-C4)-alkyl- thio, (C1-C4)-alkoxy or the bivalent group 3,4-0- CH2-O, comprising reacting a compound of the formula II Image (II) in uhich X denotes halogen and R2 has the meaning as in formula I, in the presence of a copper catalyst with an alkali metal phenolate or alkaline earth metal pheno- late of the formula III Image (III) in which M denotes an alkali metal or an alkaline earth metal and R1 has the meaning as in formula I.

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