The 1,2-sulfone rearrangement resulting from nucleophilic addition to bis activated vinyl-sulfones has been studied in more detail. Various nucleophiles activated by different types of catalysts (enamine, Brönsted base, thiourea) are able to promote such rearrangement in excellent yields and moderate to excellent enantioselectivities (up to 94% ee). Mechanistic studies have led to a better understanding of the mechanism and allowed its application to other electrophiles such as vinyl-sulfone acrylates.
对双活化的
乙烯基亚
磺酸酯进行亲核加成所导致的1,2-亚
磺酸重排已被更深入地研究。不同类型
催化剂(如
烯胺、布朗斯特碱、
硫脲)激活的各种亲核试剂能够以极好的产率和中到优良的对映选择性(最高达94% ee)促进这种重排。机理研究使我们对该机制有了更好的理解,并使其能够应用于其他电亲核试剂,如
乙烯基亚
磺酸丙烯酸酯。