An efficient approach to construct an enantiomerically pure cyclobutane skeleton by means of the chiral auxiliary induced [2 + 2] photoaddition reactions has been described. This asymmetric photoreaction exhibited high diastereoselectivity and provided the photoadducts in excellent yields.
已经描述了通过手性助剂诱导的[2 + 2]光加成反应构建对映体纯的
环丁烷骨架的有效方法。这种不对称的光反应表现出高的非对映选择性,并以优异的产率提供了光加合物。