作者:Yingying Wu、Chao Du、Congcong Hu、Ying Li、Zhixiang Xie
DOI:10.1021/jo102511x
日期:2011.5.20
pathway, hyperolactone D, 4-hydroxyhyperolactone D, and hyperolactone C were synthesized from methyl acetoacetate via Weiler’s dianion method, asymmetric allylic alkylation, biomimetic lactonization, oxidation, and cyclization. The stereochemistry of the quaternary carbon was controlled efficiently by Palladium-catalyzed asymmetric allylic alkylation. This strategy was also used for the synthesis of hyperolactone
通过仿生途径,通过魏勒二价阴离子法,不对称烯丙基烷基化,仿生内酯化,氧化和环化,由乙酰乙酸甲酯合成高内酯D,4-羟基高内酯D和高内酯C。季碳的立体化学可通过钯催化的不对称烯丙基烷基化得到有效控制。此策略也用于合成高内酯B。