our findings on a novel and cheap NiCl2 catalytic system under ligand-free conditions for the efficient thiocarbonylation, alkoxycarbonylation and amidocarbonylation reactions of aryl iodides in the presence of Cr(CO)6 as the solid source of carbon monoxide under air. A variety of aryl iodides tolerated the reaction conditions and structurally different thiols, alcohols and amines were used efficiently
作者:Higuinaldo José Chaves Das Neves、Lício Da Silveira Godinho
DOI:10.1016/s0040-4020(01)88978-x
日期:1979.1
2-dichloroethane at room temperature, S-acylthiolS-oxides 3 are proposed as intermediates. The isolation of carboxylic acid anhydrides and dialkyl disulphides as the actual reaction products can be explained as resulting from the decomposition of the unstable. S-acyl S-acyloxysul-phonium salt 4 arising probably from the reaction of the intermediate S-acylthiolS-oxides with another mole of thiolester.
Palladium-Catalyzed Desulfonative Carbonylation of Thiosulfonates: Elimination of SO<sub>2</sub> and Insertion of CO
作者:Jian-Xing Xu、Le-Cheng Wang、Xiao-Feng Wu
DOI:10.1021/acs.orglett.2c01951
日期:2022.7.8
A palladium-catalyzed desulfonative carbonylation of thiosulfonates has been explored. Without any additive, a series of S-aryl/alkyl benzenesulfonothioates were successfully transformed to thioesters in moderate to excellent yields by SO2 extrusion and CO insertion under the pressure of 1 bar of CO. The solvent dimethylacetamide (DMAc) facilitated this desulfonative carbonylation due to its high absorbing
已经探索了硫代磺酸盐的钯催化的脱磺羰基化。在不使用任何添加剂的情况下,在 1 bar CO 的压力下,通过 SO 2挤出和 CO 插入,一系列S-芳基/烷基苯硫代磺酸盐成功地转化为硫酯,产率适中。对SO 2的高吸收能力。
Ate complex from diisobutylaluminum hydride and n-butyllithium as a powerful and selective reducing agent for the reduction of selected organic compounds containing various functional groups
作者:Sunggak Kim、Kyo Han Ahn
DOI:10.1021/jo00184a010
日期:1984.5
1-(2,5-Dichlorophenyl)-2,2-bis(methylsulfanyl)vinyl Esters as Highly Efficient Chemoselective Acylating Reagents