Metal-free, high yielding synthesis of unsymmetrical biaryl, bi(heteroaryl), aryl vinyl, aryl alkyl sulfones via coupling of aryne with sulfinic acid salts
作者:Sravan Kumar Aithagani、Kushalava Reddy Yempalla、Gurunadham Munagala、Ram A. Vishwakarma、Parvinder Pal Singh
DOI:10.1039/c4ra07370c
日期:——
Here, we report a metal-free, high yielding method for the synthesis of unsymmetrical biaryl sulfones via coupling of aryne with sulfinic acid salts. The optimized condition also works efficiently for bi(heteroaryl), arylvinyl and aryl alkyl sulfones. The present method took comparatively shorter reaction times and has good functional group compatibility.
Silyloxymethanesulfinate as a sulfoxylate equivalent for the modular synthesis of sulfones and sulfonyl derivatives
作者:Dae-Kwon Kim、Hyun-Suk Um、Hoyoon Park、Seonwoo Kim、Jin Choi、Chulbom Lee
DOI:10.1039/d0sc02947e
日期:——
protocol for the modular synthesis of sulfones and sulfonyl derivatives has been developed utilizing sodium tert-butyldimethylsilyloxymethanesulfinate (TBSOMS-Na) as a sulfoxylate (SO22−) equivalent. TBSOMS-Na, easily prepared from the commercial reagents Rongalite™ and TBSCl, serves as a potent nucleophile in S-alkylation and Cu-catalyzed S-arylation reactions with alkyl and aryl electrophiles. The sulfone
Copper-Mediated Cross-Coupling of Diazo Compounds with Sulfinates
作者:Qian Wang、An Liu、Yan Wang、Chuanfa Ni、Jinbo Hu
DOI:10.1021/acs.orglett.1c02481
日期:2021.9.3
A copper-mediated cross-coupling reaction between a diazo compound and a sodium alkane(arene)sulfinate gives a sulfone as the product. This reaction proceeds under mild conditions and features excellent functional group compatibility. A wide range of sodium alkane(arene)sulfinates were successfully applied in this chemistry. Mechanistic studies revealed that the overall reaction efficiency of the sulfinates
Benzothiazole Sulfinate: A Sulfinic Acid Transfer Reagent under Oxidation-Free Conditions
作者:Jacob J. Day、Deshka L. Neill、Shi Xu、Ming Xian
DOI:10.1021/acs.orglett.7b01693
日期:2017.7.21
commonly encountered intermediates found in natural product synthesis and medicinal chemistry. However, because of high reactivity, instability, and harsh reaction conditions, they are difficult to synthesize. Herein we have developed an oxidation-free method to produce sulfinic acids and sulfinate salts using 2-sulfinyl benzothiazole (BTS). We have also demonstrated the synthetic usefulness by developing