Synthesis of ([1,2,4]triazolo[4,3-a]pyridin-3-ylmethyl)phosphonates and their benzo derivatives via 5-exo-dig cyclization

Synthesis of ([1,2,4]triazolo[4,3-a]pyridin-3-ylmethyl)phosphonates and their benzo derivatives via 5-exo-dig cyclization

A series of novel 3-methylphosphonylated [1,2,4]triazolo[4,3-a]pyridines was accessed through a 5-exo-dig-type cyclization of chloroethynylphosphonates and commercially available N-unsubstituted 2-hydrazinylpyridines. In addition, 3-methylphosphonylated [1,2,4]triazolo[4,3-a]quinolines and 1-methylp...

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Bibliographic Details
Main Authors: Aleksandr S. Krylov, Artem A. Petrosian, Julia L. Piterskaya, Nataly I. Svintsitskaya, Albina V. Dogadina
Format: Article
Language:English
Published: Beilstein-Institut 2019-07-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
cyclization
fused-ring systems
nitrogen heterocycles
phosphorylation
rearrangement
Online Access:https://doi.org/10.3762/bjoc.15.159

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