A highly efficient heterogeneous copper-catalyzed Chan-Lam coupling reaction of sulfonyl azides with arylboronic acids leading to: N -arylsulfonamides
A heterogeneous Chan-Lam coupling reaction between sulfonyl azides and arylboronic acids was achieved in MeOH at room temperature in the presence of 10 mol% of an l-proline-functionalized MCM-41-immobilized copper(i) complex [MCM-41-l-proline-CuCl] under air, yielding a variety of N-arylsulfonamides in excellent yields. The new heterogeneous copper complex can be prepared from commercially readily available and inexpensive reagents, and recovered by simple filtration of the reaction solution and recycled at least 8 times without any decreases in activity.
You, Chongren,Yao, Fang,Yan, Tao,Cai, Mingzhong
p. 43605 - 43612
(2016/05/24)
Copper-catalyzed Chan-Lam Coupling between Sulfonyl Azides and Boronic acids at room temperature
A mild and efficient method for the synthesis of N-arylsulfonamides in the presence of 10 mol % of CuCl is demonstrated. The reaction proceeds readily at room temperature in an open flask using a variety of sulfonyl azides and boronic acids without any base, ligand, or additive.
Synthesis and catalysed hydroboration of styryl sulfonamides
We have prepared the aryl sulfonamides 4,4′-R-C6H 4SO2NHC6H4CH=CH2 (R = CH3, 1a; NO2, 1b) by addition of 2 equiv. of 4-vinylaniline to the corresponding sulfonyl chlor
Wynberg, Natalie A.,Leger, Lisa J.,Conrad, Maren L.,Vogels, Christopher M.,Decken, Andreas,Duffy, Stephen J.,Westcott, Stephen A.
p. 661 - 667
(2007/10/03)
N-(Vinylphenyl) sulfonamides
Novel N-(vinylphenyl)sulfonamides and polymers thereof including copolymers of N-(vinylphenyl)sulfonamides and styrene are prepared by reacting 4-vinylaniline with an amine and a sulfonyl chloride in the presence of an acid acceptor to produce the monomer
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(2008/06/13)
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