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Synthetic applications of C,C-bis(iminophosphoranes): Preparation of [5+5] rigid bicyclic guanidines and 1,3,6-benzothiadiazepino[3,2-a] benzimidazole derivatives

✍ Scribed by Pedro Molina; Ma Josefa Lidón; Alberto Tárraga


Book ID
108372275
Publisher
Elsevier Science
Year
1994
Tongue
French
Weight
579 KB
Volume
50
Category
Article
ISSN
0040-4020

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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