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Reaction of thioamides of hetarenecarboxylic acids with dimethyl acetylenedicarboxylate

โœ Scribed by V. S. Berseneva; V. A. Bakulev; V. S. Mokrushin

Book ID
105525619
Publisher
Springer US
Year
2000
Tongue
English
Weight
79 KB
Volume
36
Category
Article
ISSN
0009-3122

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๐Ÿ“œ SIMILAR VOLUMES

Unexpected formation of novel pyrrole de
Unexpected formation of novel pyrrole derivatives by the reaction of thioamide with dimethyl acetylenedicarboxylate
โœ Hirofumi Nakano; Tomoaki Ishibashi; Toshihiko Sawada ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 143 KB

The reaction of thioamides with DMAD gave the pyrrole derivatives in good yield and the thiophene derivatives as a byproduct. These were formed by 1,3-dipolar cycloaddition of themodynamicaly stable azomethine ylide or less stable thiocarbonyl ylide with DMAD, followed by elimination of thioaldehyde