Intramolecular cyclopropanation of alkenyl diazoketones was found to proceed in a highly enantioselective manner by using optically active (nitroso)(salen)ruthenium(II) complex 1 as the catalyst under photo-irradiation.
通过使用光学活性 (亚硝基)(salen)
钌 (II) 配合物 1 作为催化剂,在光照射下,发现烯基重
氮酮的分子内
环丙烷化以高度对映选择性的方式进行。