Enantioselective palladium catalyzed conjugate additions of ortho-substituted arylboronic acids to β,β-disubstituted cyclic enones: total synthesis of herbertenediol, enokipodin A and enokipodin B
作者:Jeffrey Buter、Renée Moezelaar、Adriaan J. Minnaard
DOI:10.1039/c4ob01085j
日期:——
Palladium catalyzed asymmetric conjugate addition of ortho-substituted arylboronic acids to cyclic enones and its application in natural product synthesis.
Enantioselective total synthesis of enokipodins A–D
作者:Shigefumi Kuwahara、Mana Saito
DOI:10.1016/j.tetlet.2004.04.191
日期:2004.6
The first enantioselective total synthesis of enokipodins A–D, highly oxidized α-cuparenone-type sesquiterpenoids with antimicrobialactivity, was accomplished by using Meyers' diastereoselective alkylation protocol for the construction of the C7-quaternary asymmetric center. The present synthesis also constitutes a formal enantioselectivesynthesis of (S)-1,4-cuparenediol and (S)-cuparene-1,4-quinone
Total Syntheses of Enokipodins A and B Utilizing Palladium-Catalyzed Addition of An Arylboronic Acid to An Allene
作者:Masahiro Yoshida、Yasunobu Shoji、Kozo Shishido
DOI:10.1021/ol9001637
日期:2009.3.19
The enantioselective total syntheses of enokipodins A and B, alpha-cuparenone-type sesquiterpenoids with antimicrobial activity, have been achieved. The key step is the enantiospecific construction of the quaternary carbon center using a palladium-catalyzed addition of an arylboronic acid to an allene followed by an Eschenmoser-Claisen rearrangement.