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Synthesis of substituted 2- and 4-carboxypyrylium salts

โœ Scribed by N. V. Kholodova; Yu. P. Andreichikov; G. N. Dorofeenko


Book ID
112349683
Publisher
Springer US
Year
1981
Tongue
English
Weight
283 KB
Volume
17
Category
Article
ISSN
0009-3122

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Azulene-substituted pyridines and pyridi
โœ Alexandru C. Razus; Liviu Birzan; Claudia Pavel; Oana Lehadus; Andreea Corbu; Fi ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 579 KB

ClO 4 -N + Me(Ph) R Az Me(Ph) R 1 ClO 4 -R 1 = Me, Bu, iPr, Bn, Ph, tBu 4-Azulen-1-yl substituted 2,6-dimethyl-and 2,6-diphenyl-pyridinium salts are obtained in yields between 50 % and 100 % in the reaction of corresponding 4-azulen-1-yl-pyranylim salts and various amines. The effects of amine stru