The synthesis of vinyl sulfone derivatives via the reaction of arylpropiolic acids, K2S2O5, and aryl boronic acids is reported. The CuBr2/1,10-phenanthroline catalytic system in the presence of acetic acid provides the desired vinyl sulfones in moderate to good yield. Furthermore, the methodology features excellent functional group tolerance.
报道了通过芳基丙炔酸、K 2 S 2 O 5和芳基硼酸的反应合成乙烯基砜衍生物。在乙酸存在下的 CuBr 2 /1,10-菲咯啉催化体系以中等至良好的产率提供所需的乙烯基砜。此外,该方法具有出色的官能团耐受性。
Convenient synthesis of α,β-unsaturated sulfones via a Mizoroki–Heck reaction of arylboronic acids with phenyl vinyl sulfones
作者:George W. Kabalka、Sankar K. Guchhait
DOI:10.1016/j.tetlet.2004.03.179
日期:2004.5
Palladium acetate catalyzed Mizoroki–Heck reaction of arylboronic acids with phenyl vinylsulfones afford α,β-unsaturated sulfones in good yields.
乙酸钯催化的芳基硼酸与苯基乙烯基砜的Mizoroki-Heck反应可得到高产率的α,β-不饱和砜。
Phosphoric Acid-Mediated Synthesis of Vinyl Sulfones through Decarboxylative Coupling Reactions of Sodium Sulfinates with Phenylpropiolic Acids
A novel phosphoric acid -mediated synthesis of vinyl sulfones through decarboxylative coupling reactions of sodium sulfinates with phenylpropiolic acids is described. This transformation is efficient and environmentally friendly.
Heck Vinylations Using Vinyl Sulfide, Vinyl Sulfoxide, Vinyl Sulfone, or Vinyl Sulfonate Derivatives and Aryl Bromides Catalyzed by a Palladium Complex Derived from a Tetraphosphine
affords an efficient catalyst for the Heck reaction ofsulfur-containing alkenes with aryl bromides. The rates and yields of the reactions strongly depend on the oxidation state of the sulfur atom. Using vinyl sulfides with 1 mol% catalyst, low to moderate yields of arylated alkenes were obtained. Phenyl vinyl sulfoxide was found to be more reactive, and satisfactory yields of (E)-[2-(phenylsulfinyl)vinyl]benzene