A highly regio- and stereoselective Pd-catalyzed tandem allylic rearrangement/intramolecular decarboxylative coupling of aryl propiolates derived from Baylis–Hillman adducts
A highly regio- and stereoselective Pd-catalyzed tandem allylic rearrangement/intramolecular decarboxylative coupling of aryl propiolates derived from Baylis–Hillman alcohols leading to the formation of an important class of 1,5-diarylpent-1-en-4-ynes has been developed. The aryl propiolates of Baylis–Hillman alcohols derived from methyl acrylate provided exclusively (E)-1,5-diarylpent-1-en-4-ynes
Cyclization–oxidation of 1,6-enyne derivatived from Baylis–Hillman adducts via Pd(II)/Pd(IV)-catalyzed reactions: stereoselective synthesis of multi-substituted bicyclo[3.1.0] hexanes and insight into reaction pathways
作者:Hui Liu、Jianjun Yu、Limin Wang、Xiaofeng Tong
DOI:10.1016/j.tetlet.2008.09.108
日期:2008.11
stereoselectively synthesize variety of multi-substituted bicyclo[3.1.0] ring systems via Pd(II)/Pd(IV)-catalyzed reactions. We also disclose that C–Pd(IV) intermediate can undergo reductive elimination through SN2-type attack by the latent nucleophile of vinyl acetate to afford Csp3Csp3–Csp3Csp3 bond formation with inversion of configuration at the Pd(IV)-bounded carbon.