Corrigendum to “Copper-catalyzed chemoselective cross-coupling reaction of thioamides and α-diazocarbonyl compounds: Synthesis of enaminones” [Tetrahedron Lett. 58 (2017) 586–589]

Progress in intermolecular and intramolecular reactions of thioamides with diazo compounds and azides

“…Until 2012, there were only two publications where the rhodium-catalyzed variants were used in intermolecular reactions [26,28]. Recent trends in the progress of reaction of this type dealt with the use of ruthenium- [29][30][31] and copper-containing catalysts [32,33]. A systematic study was made by Hussaini and coworkers, who have discovered and carefully studied intermolecular reactions of primary, secondary and tertiary thioamides with diazoketones and diazoesters in the presence of seven types of ruthenium catalysts [29][30][31].…”

Coupling of acceptor-substituted diazo compounds and tertiary thioamides: synthesis of enamino carbonyl compounds and their pharmacological evaluation

“…34 On the other hand, the gradual addition of diazo compounds slows the unwanted dimerization reaction. 35 Although we have previously coupled one diazoketone to thioamides, 25,27 we could never couple thioamides and diazoesters 23 and did not attempt other diazoketones. Therefore, this study solves this challenge and produces acceptor-substituted enamino carbonyl compounds in high yields.…”

“… 20–26 The metal-catalyzed coupling reaction of thioamides and diazo compounds is considered a modified Eschenmoser coupling reaction. 2 Although we have reported three reactions between thioamides and diazo-monoketones, 25,27 we were unsuccessful in coupling diazomonoesters and thioamides in the past. 23,25,27,28 Therefore, this paper's primary emphasis is the Cu( i )-catalyzed coupling of tertiary thioamides and acceptor-substituted diazo compounds.…”