Clean ring cleavage of 1,2-dithiolane by carbanion was first recognized for 4,4-diethyl-1 ,2-dithiolane (3) in the reaction with Grignard reagents, the reactivity being attributed to the low polymerizing tendency of 3, similar to that of the enzyme-bound lipoic acid.
首先发现碳阳离子对 1,2-二
硫环戊烷的清洁环裂解作用,即 4,4-
二乙基-1,2-二
硫环戊烷 (3) 与
格氏试剂的反应,这种反应性归因于 3 聚合倾向低,类似于酶结合的
硫辛酸。