Synthesis of 5-arylsubstituted thiazol-4-one acetyl and amino derivatives by the heterocyclization of the products of acrylamide thiocyanatoarylation
摘要:
The heterocyclization of 2-thiocyanato-3-arylpropionamides in acetic anhydride followed by the deacylation of the intermediates formed in an alkaline medium afforded the otherwise difficultly accessible 2-amino-5-benzylthiazol-4-ones.
Synthesis and Reaction of 2-Mercapto-3-Arylpropanoic Acids
作者:Nazariy T. Pokhodylo、Vasyl S. Matiychuk、Mykola D. Obushak
DOI:10.1080/10426507.2011.649503
日期:2012.7
(2-bromo-3-aryl)propanoates were formed. Their cyclization with thiourea produced 5-(R-benzyl)-2-imino-4-thiazolidinones, which yielded 3-aryl-2-mercaptopropanoic acids by alkaline hydrolysis. Second, direct Meerwein arylation of acrylates in the presence of S-nucleophile (NaSH) allowed isolation of 3-phenyl-2-mercaptopropanoic acid in 8% yield. Such acids were used for cyclization with cyanoguanidine and phenyl isothiocyanate
Synthesis of 5-arylsubstituted thiazol-4-one acetyl and amino derivatives by the heterocyclization of the products of acrylamide thiocyanatoarylation
作者:B. D. Grishchuk、V. S. Baranovskii
DOI:10.1134/s1070363211090271
日期:2011.9
The heterocyclization of 2-thiocyanato-3-arylpropionamides in acetic anhydride followed by the deacylation of the intermediates formed in an alkaline medium afforded the otherwise difficultly accessible 2-amino-5-benzylthiazol-4-ones.