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Preparation and stereochemical characterization of some N-acyl-[1]benzopyrano[3,4-c]pyrazole derivatives from rotenoids

โœ Scribed by Ivanka Kostova; Svetla Simova


Book ID
104951359
Publisher
Springer Vienna
Year
1989
Tongue
English
Weight
387 KB
Volume
120
Category
Article
ISSN
0026-9247

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The N-acylating and N-alkoxycarbonylation ability of the N-substituted 1,2,3-triazolo[4,5-c]pyridines 1a-e have been investigated. The alkoxycarbonyl triazolopyridine derivatives (1c-e) were readily prepared in 81-96 % yield (the corresponding tetrafluoroborate > 95 %). Triazolo[4,5-c]pyridine (1) h