开发了用芳基（重氮）乙酸酯对吲哚进行无金属催化剂蓝光诱导环丙烷化的方法。该策略的突出特征为无需采用金属催化剂，操作简单，原子经济性高，且采用环境友好的能量来源。该反应方案中，蓝光为该化学转化的唯一能量来源。在温和条件下，以中等到极高的收率和极高的非对映立体选择性生产得到各种不同的环丙烷-吲哚化合物。

Blue-light-mediated cyclopropanation of indoles with aryl(diazo)acetates has been developed. The salient features of this strategy are that it is metal-free, operationally simple and atom-efficient, and that it uses an environmentally friendly energy source. In this protocol, blue light was employed as the sole energy source for the transformation. A variety of cyclopropane-fused indoline compounds was obtained in moderate to excellent yields and high diastereoselectivities under mild conditions.