The Double Oxa-Michael-Aldol Condensation: Straightforward Access to Dimeric Tetrahydroxanthenones

Abstract

Symmetrical dimeric tetrahydroxanthenones can be obtained in a single step starting from dimeric salicylic aldehydes and cyclohexenones employing a double oxa-Michael-aldol condensation.

Key words

tetrahydroxanthenones - domino reactions - oxa-Michael-aldol condensation - mycotoxins - secalonic acids

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