Microwave-assisted Synthesis of Thioesters from Aldehydes and Thiols in Water
作者:Huei-Shu Jhuang、Yi-Wei Liu、Daggula Mallikarjuna Reddy、Yong-Ze Tzeng、Wei-Yu Lin、Chin-Fa Lee
DOI:10.1002/jccs.201700045
日期:2018.1
We describe the synthesis of thioesters via copper‐ or iron‐catalyzed coupling of thiols with aldehydes on application of microwave irradiation. In this protocol, a variety of aliphatic and aromatic aldehydes and thiols were used, and the products were obtained in good to excellent yields.
Base-Induced Mechanistic Variation in Palladium-Catalyzed Carbonylation of Aryl Iodides
作者:Yanhe Hu、Jing Liu、Zhixin Lü、Xiancai Luo、Heng Zhang、Yu Lan、Aiwen Lei
DOI:10.1021/ja909962f
日期:2010.3.10
facile alkoxycarbonylation and thiocarbonylation. The ethoxycarbonylation of aryl iodides under room temperature and balloon pressure of CO in the presence of EtONa were examined, and good to high yields were obtained; the t-butoxycarbonylation reactions in the presence of t-BuONa were achieved, and the alkylthiocarbonylation (including the t-butylthiocarbonylation) of aryl iodides in the presence of sodium
Metal-free cross-coupling reaction of aldehydes with disulfides by using DTBP as an oxidant under solvent-free conditions
作者:Jing-Wen Zeng、Yi-Chen Liu、Ping-An Hsieh、Yu-Ting Huang、Chih-Lun Yi、Satpal Singh Badsara、Chin-Fa Lee
DOI:10.1039/c4gc00025k
日期:——
A DTBP-promoted C–H thiolation of aldehydes with disulfides under metal-free and solvent-free conditions is described. The system shows good functional group tolerance to afford thioesters in moderate to excellent yields.
Pyridine–borane complex-catalysed thioesterification: the direct conversion of carboxylic acids to thioesters
作者:Ming-Chuan Wang、Xue-Ying Yang、Jian-Feng Zhou、Wan-Xuan Zhang、Bin-Jie Li
DOI:10.1039/d4cc01326c
日期:——
simple and bench-stable carboxylic acids as a coupling partner. Herein, we present a 4-bromo pyridine–borane complex as a catalyst for the direct coupling of carboxylic acids with thiols. A wide range of thioesters with good functional group compatibility could be prepared via this metal-free approach. The merit of this strategy is exemplified by the modification of carboxylic acid-containing drugs.
Iron-Catalyzed Synthesis of Thioesters from Thiols and Aldehydes in Water
作者:Yu-Ting Huang、Shao-Yi Lu、Chih-Lun Yi、Chin-Fa Lee
DOI:10.1021/jo500574p
日期:2014.5.16
The preparation of thioesters through the iron-catalyzed coupling reaction of thiols with aldehydes is described. The reactions were carried out by using tert-butyl hydroperoxide (TBHP) as an oxidant and water as a solvent in most cases. This system is compatible with a variety of functional groups.