Insight into Acid-Mediated Asymmetric Spirocyclization in the Presence of a Chiral Diol.
作者:Toshihiro KIGUCHI、Yuko TSURUSAKI、Satoshi YAMADA、Mariko ASO、Masakazu TANAKA、Kiyoshi SAKAI、Hiroshi SUEMUNE
DOI:10.1248/cpb.48.1536
日期:——
Asymmetric spirocyclization based on intramolecular conjugate addition using a combination of a Lewis acid and an optically active cyclohexane-1, 2-diol has been studied in connection with 1) the effect of substituents on the cyclohexane-1, 2-diol and 2) the effect of substituents on the substrate. This reaction was found to be both thermodynamically and kinetically controlled under restricted conditions.
基于分子内共轭加成的非对称螺环化反应,利用路易斯酸和光学活性环己烷-1, 2-二醇的组合进行了研究,主要涉及两个方面:1)取代基对环己烷-1, 2-二醇的影响;2)取代基对底物的影响。研究发现,在限制条件下,该反应在热力学和动力学上均受控。