作者:Dominique Cahard、Malika Mammeri、Jean-Marie Poirier、Lucette Duhamel
DOI:10.1016/s0040-4039(00)00457-3
日期:2000.5
A three-step synthesis of (2Z), (4E)-polyenic acids 6 is described. Condensation of aldehydes 1 with potassium prenal enolate led to dihydropyranols 3 which were oxidized into dihydropyrones 5, precursors of (2Z), (4E)-polyenic acids 6. The procedure was applied to a synthesis of 13-cis-retinoic acids from beta-ionylidene acetaldehydes. (C) 2000 Elsevier Science Ltd. All rights reserved.