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ChemInform Abstract: Ring Transformations of Heterocyclic Compounds. Part 13. Bis(2,4,6- triarylphenyl) Substituted Bispyridinium Salts from Methyl Derivatives by Double Pyrylium and Thiopyrylium Ring Transformations.

✍ Scribed by T. ZIMMERMANN; K. SCHMIDT


Book ID
112041353
Publisher
John Wiley and Sons
Year
2010
Weight
31 KB
Volume
27
Category
Article
ISSN
0931-7597

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## 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,