The radical cyclization between aliphatic acyclic esters and alkenes was achieved unprecedentedly in the presence of allylsamarium bromide with HMPA and H2O as additives. The cascade radical cyclizationâring-openingâanionic cyclization allowed facile and efficient access to 2-(2-hydroxyalkyl)cyclopropanols from readily available materials.
在以 HMPA 和
H2O 为添加剂的烯丙基
溴化铵存在下,前所未有地实现了脂肪族无环酯与烯烃之间的自由基环化。这种级联自由基环化-环-开环-阴离子环化的方法可以方便有效地从现有材料中获得 2-(2-羟基烷基)
环丙醇。