Thiyl radical promotes the isomerisation of allylic amines into enamines via two consecutive hydrogen atom abstraction steps, and the subsequent polar addition of the corresponding thiol to the enamine results in the cleavage of the CâN bond via a thioaminal intermediate: this reaction provides a mild, metal-free methodology for the deprotection of allylated primary and secondary amines.
硫基自由基通过两个连续的氢原子夺取步骤促进
烯丙胺异构化为烯胺,随后将相应的
硫醇极性加成到烯胺上,导致通过
硫胺醛中间体裂解 C–N 键:该反应提供了用于烯丙基化
伯胺和仲胺脱保护的温和、无
金属方法。