A Novel Phase - Transfer Catalysed Cycloaddition of Carbonyl-Stabilized Sulfur Ylides to Vinylic Sulfones
作者:D. Bhaskar Reddy、P. S. Reddy、B. V. Reddy、P. A. Reddy
DOI:10.1055/s-1987-27854
日期:——
In our current studies on the chemistry and synthetic utility of carbonyl stabilized sulfur ylides, we have found that the cyloaddition of dimethylsulfonium phenacylides to aryl vinyl sulfones to be useful general approach to 1-arylsulfonyl-2-aroylcyclopropanes 3.
Highly regioselective tandem formal substitution and decarboxylation of 2-acyl-1-chlorocyclopropanecarboxylates with sodium sulfinates
作者:Yuequan Zhu、Yuefa Gong
DOI:10.1016/j.tet.2016.04.062
日期:2016.6
cyclopropene quickly combines with sodiumsulfinate via a regioselective 1,4-Michael addition. Subsequent esterolysis and decarboxylation of the 1,4-Michael adducts afforded 1-aroylsulfonyl-2-aroylcyclopropanes in high yields. This observation firstly demonstrates that direct Michael addition of sodiumsulfinates with reactive cyclopropene is really workable.