作者:Siddiki S. M. A. Hakim、Takashi Sugimura
DOI:10.1021/ol101370x
日期:2010.8.20
substituent, while the selectivity becomes high to give a single stereoisomer (>99% pure) when the substituent is an aryl group. The difference in the selectivity is attributable to the change in the rate-determining step from the conformational process to the cyclization.
带有手性2,4-戊二醇系链的酯的α-碳自由基的分子内环化显示,当自由基碳原子具有烷基取代基时,立体选择性低,而当取代基具有较高的选择性时,则可以生成单一的立体异构体(纯度> 99%)是芳基。选择性的差异可归因于从构象过程到环化过程的速率确定步骤的变化。