40531-93-9Relevant academic research and scientific papers
Efficient Synthesis of α-Ketothioamides From α-Nitroketones, Amines or DMF and Elemental Sulfur Under Oxidant-Free Conditions
Zhang, Zhenlei,Yang, Jiusi,Yu, Renjie,Wu, Kairui,Bu, Jiping,Li, Shaoke,Qian, Peng,Sheng, Liangquan
supporting information, p. 5209 - 5212 (2021/10/19)
We have developed a practical, general protocol for denitration of readily available α-nitroketones with sulfur and amines to access a broad range of α-ketothioamides under mild conditions. Such a reaction proceeds under metal-, oxidant-, and catalyst-free conditions to provide synthetically useful α-ketothioamides. Furthermore, the mild reaction conditions tolerate a wide range of substrates especially for the synthesis of aliphatic α-ketothioamides which are rarely reported.
Synthesis of α-Keto Thioamides by Metal-Free C-C Bond Cleavage in Enaminones Using Elemental Sulfur
Gan, Lu,Gao, Yong,Wei, Li,Wan, Jie-Ping
, p. 1064 - 1069 (2019/01/24)
An unprecedented method for cleaving the C-C bond in N,N-disubstituted enaminones in the presence of elemental sulfur and N,N-dimethyl-4-aminopyridine is disclosed. Without using any metal catalyst or additive, the cascade functionalization of both C?C an
Na2S-mediated thionation: An efficient access to secondary and tertiary α-ketothioamides via Willgerodt-Kindler reaction of readily available arylglyoxals with amines
Saeidian, Hamid,Vahdati-Khajehi, Saleh,Bazghosha, Homeira,Mirjafary, Zohreh
, p. 700 - 710 (2015/10/19)
The task of this paper is to provide an efficient process for synthesis of secondary and tertiary α-ketothioamides via Willgerodt-Kindler reaction of readily available arylglyoxals with amines using Na2S as an effective catalyst. A plausible role for Na2S in the reaction of arylglyoxals with primary amines is proposed.
Summary - α-Thioxothioamides : [4 + 2] cycloaddition reactions with dimethyl acetylenedicarboxylate and methyl propiolate
Marchand, Evelyne,Morel, Georges
, p. 903 - 912 (2007/10/03)
The title compounds are prepared from methyl ketones through a three-step reaction: chloration with thionyl chloride; amination of the resulting α-chloro-β-oxosulfenyl chlorides; and thionation of α-oxothioamides with Lawesson's reagent. Two competitive h
