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Ring transformations of heterocyclic compounds. XIV. Ring transformations of pyrylium and thiopyrylium salts with anhydro-bases derived from 1H-benzimidazolium and benzothiazolium salts: An easy access to 2-(2,4,6-triarylphenyl) 1H-benzimidazolium and benzothiazolium derivatives

✍ Scribed by Thomas Zimmermann; Klaus Schmidt

Book ID
112131675
Publisher
Journal of Heterocyclic Chemistry
Year
1996
Tongue
English
Weight
325 KB
Volume
33
Category
Article
ISSN
0022-152X

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Ring transformations of heterocyclic com
Ring transformations of heterocyclic compounds. XVII, 2-(2,4,6-Triarylphenyl) substituted dihydro-1H-imidazolium, dihydrothiazolium and thiazolium salts from 2-methyl derivatives by pyrylium and thiopyrylium ring transformations
✍ Thomas Zimmermann πŸ“‚ Article πŸ“… 1999 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 483 KB πŸ‘ 1 views

## Abstract The synthesis of hitherto unknown 2‐(2,4,6‐triarylphenyl) substituted 4,5‐dihydro‐1__H__‐imidazolium perchlorates 6, 4,5‐dihydrothiazolium perchlorates 8 and thiazolium perchlorates 9 from their 2‐methyl derivatives 2, 4 and 5, respectively, by a 2,6‐[C~5~+C] ring transformation of 2,4,