作者:David Crich、Qingwei Yao
DOI:10.1016/s0040-4020(01)89539-9
日期:1994.1
The rearrangement of 2-(vinyloxy)alkyl to 4-ketobutyl radicals has been demonstrated to proceed by a two step mechanism involving initial 5-endo-trigonal cyclization to give a tetrahydrofuranyl radical which then fragments to the final radical. Fragmentation of the tetrahydrofuranyl radicals is demonstrated by their generation from the corresponding 2-(ethylthio)-tetrahydrofurans with stannanes and
已经证明,通过两步机理进行了2-(乙烯基氧基)烷基至4-酮丁基的重排,该机理包括初始的5-内-三角环化,得到四氢呋喃基,其然后断裂成最终的基团。四氢呋喃基的断裂是通过它们与相应的2-(乙硫基)-四氢呋喃与锡烷和AIBN的生成来证明的。当中间四氢呋喃基被设置成进行5-己烯基重排时,重排反应被完全阻断。