𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of 2H-1,2,3-Triazolo[4,5-c][1,2,4]triazolo[4,3-a]-pyridines and Related Systems

✍ Scribed by Sukumar Varma, K. ;Havaldar, Freddy ;Nanavati, Shrenik ;Patel, Bomi ;Fernandes, Peter S.

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
270 KB
Volume
1985
Category
Article
ISSN
0947-3440

No coin nor oath required. For personal study only.

✦ Synopsis

Synthese von 2H-1,2,3-Triazolo[4,5-~][1,2,4]triazolo[4,3-a]pyridinen und verwandten Systemen Zur Herstellung des 2H-1,2,3-Triazolo[4,5-c]pyridin-4(5H)-ons 4 wurde 2-Phenyl-2H-l,2,3triazol-4-carbaldehyd (1) zunichst in die Acrylsiiure 2 umgewandelt und letztere dann nach vorausgehender Curtius-Umlagerung des Saureazids 3 thermisch cyclisiert. Das Pyridinon 4 wurde in sein Hydrazino-Derivat 8 umgewandelt und nach zwei verschiedenen Methoden durch Reaktion mit geeigneten Carbonsauren sowie Acetylaceton zu der im Titel genannten Verbindung vom Typ 9 sowie zu 10 umgesetzt.

📜 SIMILAR VOLUMES

1,2,3-Triazolo[4,5-e]-1,2,4-triazolo[3,4
1,2,3-Triazolo[4,5-e]-1,2,4-triazolo[3,4-c]pyrimidines
✍ Giuliana Biagi; Irene Giorgi; Oreste Livi; Clementina Manera; Valerio Scartoni 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 301 KB 👁 1 views

## Abstract Some new 1,2,3‐triazolo[4,5‐__e__]‐1,2,4‐triazolo[3,4‐__c__]pyrimidmes were prepared starting from the corresponding 1,2,3‐triazolo[4,5‐__d__]pyrimidines __via__ the formation of the 1,2,4‐triazole ring. Thus suitable hydrazino derivatives 6 were condensed with triethyl orthoformate, tr

1,2,3-Triazolo[4,5-d]-1,2,4-triazolo[4,3
1,2,3-Triazolo[4,5-d]-1,2,4-triazolo[4,3-b]pyridazines
✍ Giuliana Biagi; Irene Giorgi; Oreste Livi; Clementina Manera; Valerio Scartoni 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 306 KB 👁 1 views

## Abstract Some new 1,2,3‐triazolo[4,5‐__d__]‐1,2,4‐triazolo[4,3‐b]pyridazines were prepared starting from the corresponding 1,2,3‐triazolo[4,5‐__d__]pyridazines __via__ the formation of the 1,2,4‐triazole ring, by condensation of an appropriate monocarbon fragment with the 4‐hydrazino substituent

New 1,2,3-triazolo[4,5-e]1,2,4-triazolo[
New 1,2,3-triazolo[4,5-e]1,2,4-triazolo[4,3-c]pyrimidine derivatives II
✍ Giuliana Biagi; Irene Giorgi; Oreste Livi; Federica Pacchini; Valerio Scartoni 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 32 KB 👁 1 views

## Abstract The 7‐chloro‐3‐(2‐chlorobenzyl)‐ and 7‐chloro‐3‐(2‐fluorobenzyl)‐1,2,3‐triazolo[4,5‐__d__]pyrimidines (**1** and **4**), by nucleophilic replacement with some hydrazides, gave the corresponding 7‐hydrazidoderivatives (**2a‐e** and **5a‐e**). These, by heating in Dowtherm, underwent an i