Direct photo-activation of quinolinium ion generated in situ enabled its benzylation reaction with tetra-coordinate benzylboron reagents under mild reaction conditions, where the 1,2-addition was preferred to give 2-benzyl-1,2-dihydroquinoline derivatives. Radical trapping experiments with TEMPO showed that a radical coupling process was included, which indicated the probable photo-induced single electron transfer mechanism.
在温和的反应条件下,原位生成的
喹啉离子直接被光激活,使其能够与四配位苄基硼试剂发生苄基化反应,其中 1,2-加成反应更受青睐,从而得到 2-苄基-1,2-二氢
喹啉衍
生物。用
TEMPO 进行的自由基捕获实验表明,其中包含一个自由基偶联过程,这表明可能存在光诱导单电子转移机制。