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Benzopyrylium Salts. IV. Nitration of 2,3-Diphenyl-benzopyrylium Perchlorate

โœ Scribed by Shriner, R. L.; Moffett, Robert Bruce


Book ID
127084586
Publisher
American Chemical Society
Year
1944
Tongue
English
Weight
248 KB
Volume
66
Category
Article
ISSN
0002-7863

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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