Process for preparing hydroxybenzocyclobutenes

Details Process for preparing hydroxybenzocyclobutenes Process for preparing hydroxybenzocyclobutenes

C - Chemistry, Metallurgy

07

C

C07C 39/17 (2006.01) C07C 37/02 (2006.01)

Patent

CA 2116125

2116125 9306072 PCTABS00021 A process for preparing a 3- or 4-hydroxybenzocyclobutene comprises reacting a 3- or 4-halobenzocyclobutene reactant with an alkali metal hydroxide by heating in an aqueous alcohol medium at a temperature from about 50 ·C to a temperature at which dimerization or oligomerization of a benzocyclobutene reactant or product is a significant side reaction, in the presence of a catalyst containing a catalytic amount of elemental copper or a copper compound, for a time sufficient to convert the halobenzocyclobutene reactant to the hydroxybenzocyclobutene product.

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