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Reaction of 1-alkyl-3-aryl-2-benzopyrylium salts with ammonia

โœ Scribed by I. V. Shcherbakova; E. V. Kuznetsov


Book ID
112346222
Publisher
Springer US
Year
1982
Tongue
English
Weight
151 KB
Volume
18
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