Process for preparing 2,3-dihydro-2-methyl-2-alkylbenzofuran...

Details Process for preparing 2,3-dihydro-2-methyl-2-alkylbenzofuran... Process for preparing 2,3-dihydro-2-methyl-2-alkylbenzofuran...

C - Chemistry, Metallurgy

07

D

C07D 307/79 (2006.01)

Patent

CA 2258131

The present invention relates to process for preparing 2,3-dihydro-2-methyl-2- alkylbenzofuran derivatives of formula (I) useful as intermediate of agricultural chemicals and pharmaceutical products, wherein X is selected from the group consisting of hydrogen, halogen, hydroxy group, aldehyde group and C1-C6 alkyl group; and R is selected from the group consisting of C1-C6 alkyl group.

Cette invention concerne un procédé de préparation de dérivés de 2,3-dihydro-2-méthyl-2-alkylbenzofurane, lesquels correspondent à la formule (I) où X est choisi dans le groupe comprenant hydrogène, halogène, un groupe hydroxy, un groupe aldéhyde et un groupe alkyle C¿1?-C¿6?. R est quant à lui choisi dans le groupe consistant en un groupe alkyle C¿1?-C¿6?. Ces dérivés sont utiles en qualité de produits intermédiaire pour des produits chimiques agricoles et pour des produits pharmaceutiques.

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