CuSO4?·5H2O-H-phosphonate-catalyzed intermolecular C-S bond formation: Synthesis of (E)-vinyl alkylsulfones from alkynes and DMSO
A CuSO4?·5H2O-H-phosphonate-catalyzed synthesis of (E)-vinyl alkylsulfones from alkynes and widely available DMSO was developed. The present protocol provides an alternative approach to various vinyl sulfones, with the advantages of cheap catalysts, readily available starting materials, operational simplicity and high stereo- and regioselectivity.
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
The adverse impact of sulfur compounds on catalytic performance is well known. The tetraphosphine cis,cis,cis-1,2,3,4-tetrakis[(diphenylphosphino) methyl]cyclopentane in combination with allylchloropalladium dimer affords an efficient catalyst for the Hec
Battace, Ahmed,Zair, Touriya,Doucet, Henri,Santelli, Maurice
p. 3495 - 3505
(2008/02/10)
Zur Darstellung substituierter trans-β-Styryl-methyl-sulfone