Process for the synthesis of o-isopropoxyphenol

Details Process for the synthesis of o-isopropoxyphenol Process for the synthesis of o-isopropoxyphenol

C - Chemistry, Metallurgy

07

C

260/620.3

C07C 41/16 (2006.01) C07C 43/23 (2006.01)

Patent

CA 1230612

ABSTRACT A process for preparing o-isopropoxyphenol (I) by means of the reaction: Image II I in which X is a halogen atom and in which the pyrocatechol (II) is reacted with the isopropyl halide (III) in she presence of an alkaline base in the solid state and of a solid-liquid phase transfer catalyst, in a reaction medium constituted by one or more organic solvents. The catalyst is constituted by a quaternary ammonium or phosphonium salt. The reaction is conducted in a nitrogen atmosphere, at atmospheric pressure, under agitation, at a temperature of preferably between 50°C and 130°C.

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