Process for introducing alkyl radicals into carbon chains...

Details Process for introducing alkyl radicals into carbon chains... Process for introducing alkyl radicals into carbon chains...

C - Chemistry, Metallurgy

07

C

260/557.2, 260/4

C07C 53/126 (2006.01) C07C 51/353 (2006.01) C07F 1/04 (2006.01)

Patent

CA 1149409

ABSTRACT OF THE DISCLOSURE Process for introducing a substituent selected from branched- or straight-chain radicals having from 1 to 12 carbon atoms, aralkyl or cycloalkyl radicals in which the alkyl moiety has from 1 to 4 carbon atoms, into a carbon chain bearing a stable functional group the said carbon chain having at least one proton in .alpha.-position in relation to this functional group, process whereby, in a first step, this carbon chain is reacted with a complex base comprising a mixture of alkali metal amide and alkali metal alcoholate suspended in an anhydrous organic solvent to provide temporarily a carbanion, then in a second step this carbanion is reacted in an anhydrous organic solvent with an alkyl, aralkyl or cycloakyl halide corresponding to the substituent to be introduced.

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