CN-assisted oxidative cyclization of cyano cinnamates and styrene derivatives: a facile entry to 3-substituted chiral phthalides
作者:R. Santhosh Reddy、I. N. Chaithanya Kiran、Arumugam Sudalai
DOI:10.1039/c2ob25409c
日期:——
of o-cyano cinnamates and styrene derivatives leads to efficient construction of chiral phthalide frameworks in high optical purities. This unique reaction is characterized by unusual synergism between CN and osmate groups resulting in rate enhancement of the AD process. The method is amply demonstrated by the synthesis and the structural/stereochemical assignment of the natural products.
邻氰基肉桂酸酯和苯乙烯衍生物的不对称二羟基化(AD)导致高光学纯度的手性邻苯二甲酸酯骨架的有效构建。这种独特的反应的特征在于CN和渗透酸基团之间异常的协同作用,从而导致AD过程的速率提高。天然产物的合成和结构/立体化学分配充分证明了该方法。