Iterative Approach to Enantiopure <i>syn</i>/<i>anti</i>-1,3-Polyols via Proline-Catalyzed Sequential α-Aminoxylation and Horner−Wadsworth−Emmons Olefination of Aldehydes
作者:Nagendra B. Kondekar、Pradeep Kumar
DOI:10.1021/ol900868v
日期:2009.6.18
Iterative use of proline-catalyzed tandem α-aminoxylation and HWE olefination of aldehydes provided a simple access to 1,3-polyols. The feasibility of this approach is initially studied to synthesize syn- and anti-1,3-diols and is further extended to a syn/syn-1,3,5-triol at a useful level of asymmetric induction and yield. Its usage is illustrated by the short synthesis of a hydroxylactone pheromone
脯氨酸催化的串联α-氨基木糖基化和醛的HWE烯化反应的迭代使用提供了简单的1,3,3-多元醇的途径。这种方法的可行性研究最初合成顺式和反1,3- -二醇和进一步延伸到SYN /顺在不对称诱导和产率的有用水平-1,3,5-三醇。羟基内酯信息素组分(2 S,3 S)-2-羟基己基环戊酮的简短合成说明了其用法。