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Nitrile sulfides. Synthesis of 5-aryl-1,2,4-thiadiazole-3-carboxylates

โœ Scribed by Howe, Robert K.; Gruner, Terry A.; Franz, John E.

Book ID
120986388
Publisher
American Chemical Society
Year
1977
Tongue
English
Weight
303 KB
Volume
42
Category
Article
ISSN
0022-3263

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Photocycloaddition of arylcarbothioamide
Photocycloaddition of arylcarbothioamides with unsaturated systems. Synthesis of 3,5-diaryl-1,2,4-thiadiazoles and 3-aryl-4,4,5,5-tetramethylisothiazolines via photogenerated nitrile sulfides
โœ Minoru Machida; Kazuaki Oda; Yuichi Kanaoka ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 140 KB

On irradiation arylcarbothioamides (l\_) undergo, in the absence of oxygen, the Paterno-BUchi reaction with olefins followed by cleavage, whereas under aerobic conditions the photoreaction proceeds to give 4 and 5 probably via nitrile sulfide intermediates. Although the photochemistry of thione has