highly stereoselectiveaccess to (E)-β-amidovinyl sulfones in moderate to excellent yields. The reaction proceeds readily under mild conditions at room temperature and tolerates various sensitive functional groups. This process affords exclusively (E)-configurated β-amidovinyl sulfones independent of the starting material configuration. Moreover, a direct transformation of organolithiumreagents and sulfur
Copper-Catalyzed Remote C−H Functionalization of 8-Aminoquinolines with Sodium and Lithium Sulfinates
作者:Shuai Liang、Georg Manolikakes
DOI:10.1002/adsc.201600388
日期:2016.7.28
A simple and mild copper‐catalyzed sulfonylation of 8‐aminoquinolines with sodium and lithiumsulfinates is reported. In the presence of manganese(III) acetate [Mn(OAc)3] as cooxidant a highly site‐selective C−Hfunctionalization at the C‐5 position takes place. The reaction proceeds readily at room temperature in air and various sulfones were synthesized in moderate to high yields. Moreover, a straightforward
Copper-Catalyzed Remote <i>para</i>
-C−H Functionalization of Anilines with Sodium and Lithium Sulfinates
作者:Shuai Liang、Michael Bolte、Georg Manolikakes
DOI:10.1002/chem.201605101
日期:2017.1.1
A copper‐catalyzed, cross‐dehydrogenativecoupling of anilines with sodium and lithium sulfinates was developed. By using a cooperative reaction system with Mn(OAc)3 as stoichiometric co‐oxidant a highly selective para‐functionalization of anilines was accomplished. Various functional groups were tolerated and the desired products were obtained in high yields. This method not only provides a novel
A mild, efficient method for the synthesis of aromatic and aliphatic sulfonamides
作者:Wing Yan Chan、Carl Berthelette
DOI:10.1016/s0040-4039(02)00848-1
日期:2002.6
two-step method was developed for the synthesis of aromatic and aliphatic sulfonamides from the corresponding sulfinates using bis(2,2,2-trichloroethyl)azodicarboxylate as the electrophilic nitrogen source. The intermediate sulfonylhydrazides were obtained in very good yields and were cleaved under reductive conditions to deliver the desired sulfonamides. A variety of substituents in the aromatic ring
Manganese(III) Acetate Mediated C-H Sulfonylation of 1,4-Dimethoxybenzenes with Sodium and Lithium Sulfinates
作者:Shuai Liang、Yueling Ren、Georg Manolikakes
DOI:10.1002/ejoc.201700713
日期:2017.8.2
A simple and mild Mn(OAc)3-promoted oxidative coupling of 1,4-dimethoxybenzenes with sodium and lithiumsulfinates was developed. The reaction proceeded readily at room temperature in air, and various sulfones were synthesized in moderate to high yields. In addition, a straightforward approach for the conversion of organolithium reagents and sulfur dioxide into sulfonylated 1,4-dimethoxybenzenes was