3-chloronorbornan-2-one and 3-bromocamphor with Me3Sn−, Ph2P− or PhS− ions were studied by an SRN1 mechanism in liquid ammonia or DMSO. The results show that substrates having a carbonyl group facilitate electron transfer reactions, which are impeded in the absence of such a group. However, when the free radical formed is stabilized by conjugation, the coupling reaction decreases, causing a concomitant increase
的反应 2
溴-, 2-
氯降
冰片烷, 3-
氯降
冰片-2-一 和 3-
溴樟脑 和 我3
锡−,PH 2 P-或PHS -由S进行了研究离子RN在液体1机构
氨 或者
二甲基亚砜。结果表明,具有羰基的底物促进电子转移反应,这在不存在这种基团的情况下受到阻碍。然而,当通过结合使形成的自由基稳定时,偶联反应降低,导致还原产物随之增加。理论研究基于涉及还原裂解的机制解释了所观察到的反应性,该还原裂解是π-σ相互作用的函数。