A novel arylation of sulfonamides with boronic acids to afford numerous diaryl sulfones via a visible light-mediated N–S bond cleavage other than the typical transition-metal-catalyzed C(O)–N bond activation is described. This methodology, which represents the first catalyst-free protocol for the sulfonylation of boronic acids, is characterized by its simple reaction conditions, good functional group
305. Amidines. Part IX. Preparation of substituted amidines from ketoxime sulphonates and ammonia or amines
作者:P. Oxley、W. F. Short
DOI:10.1039/jr9480001514
日期:——
An Efficient Method for the Synthesis of N-Acylsulfonamides: One-pot Sulfonylation and Acylation of Primary Arylamines under Solvent-Free Conditions
作者:Ahmad R. Massah、Davood Azadi、Hamid Aliyan、Ahmad R. Momeni、Hamid Javaherian Naghash、Foad Kazemi
DOI:10.1007/s00706-007-0783-2
日期:2008.3
The preparation of N-acylsulfonamides is described using primary amines, arylsulfonyl chlorides and acyl chlorides. Reaction of primary aryl amines with arylsulfonyl chlorides in the presence of NaHCO3 produced N-arylsulfonamides, which reacted in situ with benzoyl chloride furnishing the corresponding N-benzoyl-N-arylsulfonamides in 72-96% yields. Accordingly, 4-nitrobenzoyl chloride and 3,5-dinitrobenzoyl chloride were used as acylating agents. All the reactions were carried out under solvent-free conditions at room temperature and the products were isolated after simple work-up in high yields and purity.
Ssolonina, Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1899, vol. 31, p. 648,650
作者:Ssolonina
DOI:——
日期:——
Freundler, Bulletin de la Societe Chimique de France, 1904, vol. <3> 31, p. 618