Stereoselective synthesis of 13Z retinoic acids via β-methylenealdehydes as synthons
作者:Alain Valla、Zo Andriamialisoa、Michel Giraud、Virginie Prat、Alain Laurent、Pierre Potier
DOI:10.1016/s0040-4039(99)01963-2
日期:1999.12
A stereoselective synthesis of 13Z retinoic acids via β-methylenealdehydes is described. In methylene-de-oxo-bisubstitution reactions (Knoevenagel, Stobbe, etc.), these new synthons produce stereoselectively E olefins. Hence, a synthesis of 13Z retinoic acids is described, via a stereospecific monodecarboxylation of carboxy-14-retinoic acids.
描述了经由β-亚甲基醛的13Z视黄酸的立体选择性合成。在亚甲基-脱氧-双取代反应(Knoevenagel,Stobbe等)中,这些新的合成子产生立体选择性的E烯烃。因此,描述了通过羧基-14-视黄酸的立体有择的单脱羧作用来合成13Z视黄酸。