Preparation of 2,2-disubstituted-2,3-dihydrobenzofurans

Details Preparation of 2,2-disubstituted-2,3-dihydrobenzofurans Preparation of 2,2-disubstituted-2,3-dihydrobenzofurans

1991-08-27

1993-04-06

Dentz, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30779

Patent

active

052005321

ABSTRACT:
A process for the preparation of a 2,3-dihydrobenzofuran I ##STR1## or a derivative thereof, where R.sup.a and R.sup.b are C-organic radicals, involves reacting a 2-hydroxybenzyl alcohol II ##STR2## in the presence of an acidic ion exchanger resin and in the presence of an inert dehydrating substance. Novel 2,3-dihydrobenzofurans Ia, 2-acylphenols IVa and 2-hydroxybenzyl alcohols IIa, a process for their preparation, and their use as intermediates are also described.

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