Catalyst screening and optimization of reaction conditions allowed control of the organoselenium‐catalyzed oxidative ring expansion of highly active methylenecyclopropanes to give substituted cyclobutanones selectively. This protocol employs H2O2 as a clean oxidant and generates no waste and, therefore, provides green access to useful, but not readily available, substituted cyclobutanones under mild
催化剂的筛选和反应条件的优化使得可以控制有机
硒催化的高活性
亚甲基环丙烷的氧化环扩展,从而选择性地产生取代的
环丁酮。该方案采用H 2 O 2作为清洁氧化剂,不产生废物,因此,在温和条件下提供了绿色获得有用但不易获得的取代的
环丁酮的途径。