作者:Minghao Li、Haoquan Li、Tao Li、Yanlong Gu
DOI:10.1021/ol103110q
日期:2011.3.4
An electrophilic ring-opening reaction of 2-alkoxy-3,4-dihydropyran with a thiophenol or thiol is developed for the first time. The generated product contains not only a 1,3-dicarbonyl moiety but also a fragment of bis(alkylthio)methane. A possible mechanism is also proposed on the basis of postulating a ring-opening monotransthioacetalization product, which was prepared by using LiBr as catalyst as
首次开发了2-烷氧基-3,4-二氢吡喃与硫酚或硫醇的亲电开环反应。产生的产物不仅包含1,3-二羰基部分,而且还包含双(烷硫基)甲烷的片段。在假定开环单反硫代缩醛化产物的基础上,还提出了一种可能的机理,该产物是使用LiBr作为催化剂制备的。