formations. The hydrogen-bonded OH group activated the adjacent C-H bond of alcohols towards hydrogen atom transfer (HAT) by a radical species. The quinuclidinium radical cation, generated through single-electron oxidation of quinuclidine by the photocatalyst, employed to abstract a hydrogen atom from the α-C-H bond of alcohols selectively due to a polarity effect-produced α-hydroxyalkyl radical, which
有机光催化剂[4CzI
PN(1,2,3,5-四(
咔唑-9-基)-4,6二
氰基苯)或5MeOCzBN(2,3,4,5,6-戊基(3,6- [二甲氧基-9 H-
咔唑-9-基)
苄腈],
喹啉和
磷酸四正丁
铵(氢键催化剂)用于酰胺键的形成。氢键合的OH基团通过自由基将醇的相邻CH键朝着氢原子转移(HAT)活化。通过光催化剂对
奎尼丁进行单电子氧化而生成的
奎尼丁鎓自由基阳离子,由于极性效应产生的α-羟烷基自由基选择性地从醇的α-CH键中提取氢原子,随后转化为相应的在有氧条件下的醛。