Highly Convergent, Stereospecific Synthesis of 11-<i>cis</i>-Retinoids by Metal-Catalyzed Cross-Coupling Reactions of (<i>Z</i>)-1-Alkenylmetals
作者:Susana López、Javier Montenegro、Carlos Saá
DOI:10.1021/jo701664r
日期:2007.12.1
A stereospecific synthesis of 11-cis-retinoids has as its key step the hitherto unexplored palladium-catalyzed cross-coupling of trans-trienyl electrophiles and (1Z,3E)-penta-1,3-dienyl boronates (a Suzuki−Miyaura reaction) or stannanes (a Stille reaction). This highly convergent approach constitutes the first application of cis-organometallic moieties to the synthesis of 11-cis-retinoids and represents