The method for the synthesis of 5-(2,6-dimethylmorpholino)-1,2,3-thiadiazole-4-carbaldehyde was proposed. Its reaction with sodium 1-amino-4-(N-methyl)carbamoyl- 1,2,3-triazol-5-olate proceeds through a tandem of the Cornforth rearrangements. The initially formed azomethine isomerizes into sodium 4'-(2,6-dimethylmorpholino)thiocarbonyl-4-(N-methyl)carbamoyl- 1,1'-bis[1,2,3]triazolyl-5-olate, which then rearranges to give sodium 4-{N-{4-(2,6-dimethylmorpholinothiocarbonyl)-1,2,3-triazol-1-yl]carbamoyl}-1-methyl-1,2,3-triazol-5-olate.
The method for the synthesis of 5-(2,6-dimethylmorpholino)-1,2,3-thiadiazole-4-carbaldehyde was proposed. Its reaction with sodium 1-amino-4-(N-methyl)carbamoyl- 1,2,3-triazol-5-olate proceeds through a tandem of the Cornforth rearrangements. The initially formed azomethine isomerizes into sodium 4'-(2,6-dimethylmorpholino)thiocarbonyl-4-(N-methyl)carbamoyl- 1,1'-bis[1,2,3]triazolyl-5-olate, which then rearranges to give sodium 4-{N-{4-(2,6-dimethylmorpholinothiocarbonyl)-1,2,3-triazol-1-yl]carbamoyl}-1-methyl-1,2,3-triazol-5-olate.
Reactions of 5-dialkylamino-1,2,3-thiadiazole-4-carbaldehydes with amines as a method for the synthesis of 1,2,3-triazole-4-carbothioamides
作者:T. V. Glukhareva、Yu. Yu. Morzherin、L. V. Dyudya、K. V. Malysheva、A. V. Tkachev、A. Padva、V. A. Bakulev
DOI:10.1023/b:rucb.0000042292.19119.3d
日期:2004.6
A method for the synthesis of previously inaccessible 5-dialkylamino-substituted 1,2,3-thiadiazole-4-carbaldehydes was developed. Ring transformation in these compounds induced by primary aliphatic and aromatic amines, hydroxylamines, and N-substituted hydrazines resulted in the synthesis of a broad range of 1,2,3-triazole-4-carbothioamide.