64001-55-4Relevant academic research and scientific papers
Cu-Catalyzed Oxidative Thioesterification of Aroylhydrazides with Disulfides
Xie, Shimin,Su, Lebin,Mo, Min,Zhou, Wang,Zhou, Yongbo,Dong, Jianyu
, p. 739 - 749 (2021/01/09)
An alternative thioesterification reaction via copper-catalyzed oxidative coupling of readily available aroylhydrazides with disulfides is developed, in which oxidative expulsion of N2 overcomes the activation barrier between the carboxylic acid derivativ
Palladium-catalyzed thiocarbonylation of aryl, vinyl, and benzyl bromides
Burhardt, Mia N.,Ahlburg, Andreas,Skrydstrup, Troels
, p. 11830 - 11840 (2015/02/05)
(Chemical Equation Presented) A catalytic protocol for synthesis of thioesters from aryl, vinyl, and benzyl bromides as well as benzyl chlorides was developed using only stoichiometric amounts of carbon monoxide, produced from a solid CO precursor inside a two-chamber system. As a catalytic system, the combination of bis(benzonitrile) palladium(II) chloride and Xantphos furnished the highest yields of the desired compounds, along with the weak base, NaOAc, in anisole at 120°C. The choice of catalytic system as well as solvent turned out to be important in order to ensure a high chemoselectivity in the reaction. Both electron-rich and electron-deficient aryl bromides worked well in this reaction. Addition of 1 equiv of sodium iodide to the reaction improved the chemoselectivity with the electron-deficient aryl bromides. The thiol scope included both aryl and alkyl thiols, including 2-mercaptobenzophenones, whereby a thiocarbonylation followed by a subsequent McMurry coupling yielded differently substituted benzothiophenes. It was demonstrated that the methodology could be applied for 13C introduction into the thiophene ring.
Rapid and regiospecific phenylthiolation of some organic acids catalyzed by AlCl3 in the presence of excess anhydrous ZnCl2
Roy,Sarker, Ashis K.,Mamun, A. H. Al
experimental part, p. 2158 - 2163 (2010/08/13)
Phenylthiolation of some carboxylic acids catalyzed by AlCl3 in the presence of excess dehydrating agent (ZnCl2) has been achieved. Moreover, regiospecificity was tested of some dioic acids and found to be specific at the aliphatic p
