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Anomalous reaction of 3-aryl- and 3,4-diaryl-substituted 2-benzopyrylium salts with primary amines

โœ Scribed by E. V. Kuznetsov; G. N. Dorofeenko


Book ID
112331041
Publisher
Springer US
Year
1971
Tongue
English
Weight
68 KB
Volume
7
Category
Article
ISSN
0009-3122

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๐Ÿ“œ SIMILAR VOLUMES


2-Benzopyrylium salts. 34. Reactions of
โœ Yu. A. Zhdanov; V. G. Brovchenko; M. A. Klyuev; E. V. Kuznetsov ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer US ๐ŸŒ English โš– 510 KB

3-Carboxy-2-benzopyrylium salts form 3-carboxyisoquinolinium salts, their decarboxylated analogs, or products of contraction of the heterocycle, namely, cyclic ketols, depending on the nature of the amine and solvent. Upon treatment with acids, these ketols are demethylated through the intermediate