Convenient synthesis of 1-norbornyl-5-R-1H-1,2,3-triazole-4-carboxylic acids

Аннотация

A convenient procedure was developed for the synthesis of 2-azidobicyclo[2.2.1]heptane whose click reaction with phenylacetylene afforded 1-(bicyclo[2.2.1]heptan-2-yl)-4-phenyl-1H-1,2,3-triazol, and its reactions with ethyl α-bromoacrylate and ethyl acetoacetate gave 1-(bicyclo[2.2.1]heptan-2-yl)-5-R-1H-1,2,3-triazole-4-carboxylic acids.