probe for the detection of single electron transfer (SET), the reaction of1 with 5-hexenyl magnesium bromide was examined in the hopes of observing cyclization of any intermediate 5-hexenyl radicals to cyclopentylcarbinyl radicals. A polar process dominated the reaction, but in the less prevalent SET process, the 5-hexenyl → cyclopentylcarbinyl rearrangement was extensive, indicative of freely diffusing
                                    在一个正在进行的努力建立
1,1-二甲基-5,7-二-吨叔丁基螺[2.5]辛-4,7-二烯-6-酮(1)作为用于检测单电子转移的机械探针( (
SET),检查了1与5-己烯基
溴化镁的反应,以期观察到任何中间体5-己烯基自由基成环戊基羰基自由基的环化。极性过程主导了反应,但是在不太普遍的
SET过程中,5-己烯基→环戊基碳烯基重排范围很广,表明顺磁性中间体可以自由扩散。