Combining Organometallic Reagents, the Sulfur Dioxide Surrogate DABSO, and Amines: A One-Pot Preparation of Sulfonamides, Amenable to Array Synthesis
作者:Alex S. Deeming、Claire J. Russell、Michael C. Willis
DOI:10.1002/anie.201409283
日期:2015.1.19
describe a method for the synthesis of sulfonamides through the combination of an organometallicreagent, a sulfurdioxide equivalent, and an aqueous solution of an amine under oxidative conditions (bleach). This simple reaction protocol avoids the need to employ sulfonyl chloride substrates, thus removing the limitation imposed by the commercial availability of these reagents. The resultant method allows
Efficient Desulfinative Cross-Coupling of Heteroaromatic Sulfinates with Aryl Triflate in Environmentally Friendly Protic Solvents
作者:Pat Forgione、Daniel Mangel、Cindy Buonomano、Stéphane Sévigny、Gianna Di Censo、Gowsic Thevendran
DOI:10.3987/com-14-s(k)104
日期:——
Aryl-substituted heteroaromatics were synthesized via desulfinative cross-coupling reactions using aryl triflate and heteroaromatic sulfinate coupling partners. This method uses synthetically versatile aryl triflates to access aryl-substituted heteroaromatics in good yields employing aqueous and alcoholic media without the use of base, additives or co-catalysts.
Arylation of Lithium Sulfinates with Diaryliodonium Salts: A Direct and Versatile Access to Arylsulfones
作者:Natalie Umierski、Georg Manolikakes
DOI:10.1021/ol402235v
日期:2013.10.4
An efficient, transition-metal-free arylation of lithium sulfinates, which are readily accessible from reactions of organolithium reagents with sulfur dioxide, is described. Based on this method, a practical protocol for the direct transformation of (hetero)arenes and (hetero)aromatic halides into diarylsulfones was developed.