for synthesizing symmetrical sulfides using iodoarenes and potassium metabisulfite (K2S2O5). While K2S2O5 is known as a convenient sulfur dioxide surrogate, here it acts as a divalent sulfur source, pioneering its potential utility. The reaction exhibits wide substrate generality in which even highly bulky substrates can be applied to afford sterically congested sulfides.
在此,我们提出了一种使用碘芳烃和焦亚硫酸钾 (K 2 S 2 O 5 ) 合成对称硫化物的安全实用方法。虽然 K 2 S 2 O 5被称为方便的二氧化硫替代品,但它在这里充当二价硫源,开创了其潜在用途。该反应表现出广泛的底物普遍性,其中甚至可以应用非常庞大的底物来提供空间拥挤的硫化物。
Pyrosulfite-Involved Synthesis of Sulfides by Palladium-Catalyzed Decarboxylative Couplings
作者:Xiaokang Li、Bei Wei、Yanlong Gong、Chengyi Li、Xiaoting Liu、Bin Liu、Qingshan Li、Shurong Ban
DOI:10.1021/acs.joc.3c00840
日期:2023.7.21
The decarboxylativecoupling using carboxylic acid and potassium metabisulfite, promoted by a palladium catalyst, is reported for the generation of sulfides. The coupling is performed using the easily available carboxylic acid and environmentally friendly inorganic sulfides as a divalent inorganic sulfur source. Not only aromatic acids but also aliphatic carboxylic acids are workable during the couplings