作者:Diogo L. Poeira、João Macara、Hélio Faustino、Jaime A. S. Coelho、Pedro M. P. Gois、M. Manuel B. Marques
DOI:10.1002/ejoc.201900259
日期:2019.4.24
A clean and mild transfer of sulfonyl groups to amines and anilines, mediated by a hypervalentiodinereagent is described. With this reaction a total of 25 sulfonamides was synthesised in up to 99 % yield, even on gram scale. The reaction mechanism was investigated by ESI‐MS and DFT calculations.
A simple and practical protocol was developed for the synthesis of sulfonamides by reacting organometallic reagents with SO2 gas generated on demand. SO2 was generated from readily available reagents safely in a highly contained and controlled fashion. The protocol allows the synthesis of sulfonamides without using either atom-inefficient SO2 surrogates or a SO2 cylinder that requires stringent storage regulations in the laboratory. The protocol was successfully applied to the synthesis of sildenafil.
Ludwig, Miroslav; Pytela, Oldrich; Javurkova, Helena, Collection of Czechoslovak Chemical Communications, 1987, vol. 52, # 12, p. 2900 - 2908
作者:Ludwig, Miroslav、Pytela, Oldrich、Javurkova, Helena、Vecera, Miroslav
DOI:——
日期:——
Comparative study by the19F method of the influence of polar and coordinating solvents on the efficacy of transfer of the electronic influences of substituents in N-arylmercuri- and substituted N-benzyl derivatives of 4?-fluorobenzenesulfanilide
作者:S. I. Pombrik、E. V. Polunkin、A. S. Peregudov、�. I. Fedin、D. N. Kravtsov
DOI:10.1007/bf00955966
日期:1982.6
19F-{1H} NMR study of exchange equilibria with participation of sulfonamides and their C6H5Hg derivatives in DMSO