Electrophilic and nucleophilic substitution in the triazole N-oxides and N-methoxytriazolium salts: preparation of substituted 1,2,3-triazoles
作者:Mikael Begtrup、John Holm
DOI:10.1039/p19810000503
日期:——
Methylation producesN-methoxytriazoliumsalts in which H-5 can be replaced by weak nucleophiles, e.g. fluoride ions. Thus fluoro-, chloro-, hydroxy-, alkoxy-, acyloxy-, amino-, substituted amino-, azido-, nitro-, mercapto-, alkylthio-, acylthio-, and cyano-substituents can be introduced in the triazole nucleus. Alternatively deprotonated N-methoxytriazoliumsalts react with electrophiles producing substituted
The use of certain tetrazole compounds as fungicides is disclosed wherein said compounds are of the structural formula:
wherein:
R is selected from the group consisting of phenyl groups of the structural formula:
and thienyl groups of the structural formula:
and X and Y are each selected from the group consisting of hydrogen, haloalkyl, halogen, and nitro. Novel compounds wherein X is selected from the group consisting of haloalkyl, halogen, and nitro and Y is selected from the group consisting of hydrogen, haloalkyl, halogen, and nitro are also disclosed.