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Ring transformations of heterocyclic compounds. XV. N-(2-hydroxyphenyl) substituted 2-alkylamino-4,6-diarylbenzophenones by ring transformation of 2,4,6-triarylpyrylium salts with anhydrobases of benzoxazolium salts

✍ Scribed by Thomas Zimmermann; Ulrich Abram; Klaus Schmidt

Book ID
112131668
Publisher
Journal of Heterocyclic Chemistry
Year
1996
Tongue
English
Weight
306 KB
Volume
33
Category
Article
ISSN
0022-152X

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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,