Regioselective reduction of 1-methylquinolium ions by tributyltin hydride and tris(trimethylsilyl)silane via photoinduced electron transfer
作者:Shunichi Fukuzumi、Souta Noura
DOI:10.1039/c39940000287
日期:——
Thermal reduction of 1-methylquinolinium ion by tributyltin hydride occurs via a polar mechanism to yield 1-methyl-1,2-dihydroquinoline selectively, while the photoreduction of 1-methylquinolinium ion derivatives by tributyltin hydride and tris(trimethylsilyl)silane proceeds via photoinduced electron transfer from the metal hydrides to the singlet excited states of 1-methylquinolinium ion derivatives to yield the corresponding 1,4-dihydroquinolines exclusively.
三丁基氢化锡对 1-甲基喹啉离子的热还原是通过极性机制进行的,从而选择性地生成 1-甲基-1,2-二氢喹啉;而三丁基氢化锡和三(三甲基硅基)硅烷对 1-甲基喹啉离子衍生物的光还原则是通过光诱导电子从金属氢化物转移到 1-甲基喹啉离子衍生物的单激发态,从而完全生成相应的 1,4-二氢喹啉。