作者:Kayambu Muthuramu、Bhagavathi Sundari、Vaidhyanathan Ramamurthy
DOI:10.1016/s0040-4020(01)91983-0
日期:1983.1
The occurrence of Norrish type-I α-cleavage has been established in β-dithiolactones, involving the n-π* singlet state (diradical and carbene reactive intermediates). Concerted ring expansion to a thiacarbene from the excited state is suggested to be responsible for the formation, at least in part, of one of the cyclic thioacetals. Although this α-cleavage process is similar to that of corresponding
已经确定了β-二硫内酯中涉及n-π*单线态(双自由基和卡宾反应性中间体)的诺里斯-I型α-断裂的发生。据建议,从激发态起一致地扩环成噻卡宾是至少部分地形成环状硫缩醛之一的原因。尽管该α-裂解过程与相应的β-内酯类似,但所得中间体的行为却不同。