Lithium Enolate with a Lithium‐Alkyne Interaction in the Enantioselective Construction of Quaternary Carbon Centers: Concise Synthesis of (+)‐Goniomitine
作者:Yang Li、Elena Paola、Zongheng Wang、Gabriel Menard、Armen Zakarian
DOI:10.1002/anie.202209987
日期:2022.11.14
We report a method for direct enantioselective alkylation of 3-alkynoic acids and 2,3-alkendioic acids that form quaternary stereogenic centers, and application of this method to the total enantioselective synthesis of complex alkaloid (+)-goniomitine. Crystallographic studies highlighted cation-π interactions between lithium and alkyne groups in the chiral lithium aggregate intermediate.
我们报道了一种直接对映选择性烷基化形成四级立体中心的 3-炔酸和 2,3-链烯二酸的方法,并将该方法应用于复杂生物碱 (+)-goniomitine 的全对映选择性合成。晶体学研究强调了手性锂聚集中间体中锂和炔基之间的阳离子-π相互作用。