Metal-Free Cross-Coupling of Arylboronic Acids and Derivatives with DAST-Type Reagents for Direct Access to Diverse Aromatic Sulfinamides and Sulfonamides
作者:Qiang Wang、Xiang-Ying Tang、Min Shi
DOI:10.1002/anie.201605066
日期:2016.8.26
We have developed a simple and convenient method for the cross‐coupling of arylboronicacids and their derivatives with DAST‐type reagents under mild and metal‐freeconditions to directly afford sulfinamides in moderate to good yields. Moreover, sulfonamides were obtained after a simple oxidation reaction. The reaction mechanism was investigated by 18O‐labeling experiments, and the synthetic utility
Mild and General Method for the Synthesis of Sulfonamides
作者:José García Ruano、Francisco Yuste、Alejandro Parra、Virginia Mastranzo
DOI:10.1055/s-2007-1000850
日期:2008.1
lowed by 3-chloroperoxybenzoic acid oxidation of the resulting sul- finamides provides primary, secondary, and tertiary alkane-, arene- and heteroarenesulfonamides in high yields. This constitutes a mild and facile experimental protocol that avoids the use of hazardous, unstable, or volatile reagents and does not affect the configurational stability of the amines
Copper-Catalyzed Oxidative Synthesis of Sulfinamides Using Thiols or Disulfides with Amines
作者:Nobukazu Taniguchi
DOI:10.1002/ejoc.201600091
日期:2016.4
Copper-catalyzedcoupling of thiols with amines was used to synthesize numerous sulfinamides in excellent yields. Sulfenamides or sulfonamides were also formed as reaction byproducts albeit in trace quantities. The procedure is carried out as a one step and was found to be promoted by the addition of water and NH4PF6 under aerobic conditions. Furthermore, the reaction proceeds smoothly when using disulfides
One-pot synthesis of sulfonamides from methyl sulfinates using ultrasound
作者:José L. García Ruano、Alejandro Parra、Leyre Marzo、Francisco Yuste、Virginia M. Mastranzo
DOI:10.1016/j.tet.2011.02.060
日期:2011.4
Room temperature ultrasonic irradiation of neat mixtures of methyl sulfinates and primary or secondary amines (1.5 equiv) produced sulfinamides, which on m-CPBA oxidation (in dichloromethane) were converted into the corresponding sulfonamides. The two steps can be accomplished in one pot, in good overall yields, when using secondary amines, but primary amines give better sulfonamide yields when the peracid oxidation is effected on the purified sulfinamide. This constitutes a mild, efficient, and potentially scalable route to sulfonamides, which obviates the use of water sensitive, often lachrymatory sulfonyl chlorides and large reagent excesses. (C) 2011 Elsevier Ltd. All rights reserved.
Fast and Efficient Synthesis of Sulfinamides by the Oxidation of Sulfenamides Using Potassium Fluoride and <i>m</i>-Chloroperoxybenzoic Acid
作者:Mrityunjoy Datta、Alan J. Buglass
DOI:10.1080/00397911.2010.543748
日期:2012.6.15
Abstract A procedure for the synthesis of N-alkyl-, N-cycloalkyl-, N,N-dialkyl-, and N-arylarenesulfinamides from the corresponding sulfenamides using KF/m–chloroperoxybenzoic acid (CPBA) in CH3CN-H2O is described. High efficiency (fast reactions, ease of manipulation, and good yields) and absence of overoxidation are the major advantageous features of this protocol. GRAPHICAL ABSTRACT