Halogen Exchange (Halex) Reaction of 5-Iodo-1,2,3-triazoles: Synthesis and Applications of 5-Fluorotriazoles
作者:Brady T. Worrell、Jason E. Hein、Valery V. Fokin
DOI:10.1002/anie.201204979
日期:2012.11.19
A good exchange: 5‐Iodo‐1,2,3‐triazoles undergo facile substitution reactions with fluoride salts, thus providing ready access to 5‐fluorotriazoles (see scheme). The latter can be further elaborated with various nucleophiles to furnish fully substituted 1,2,3‐triazole compounds.
Synthesis of 5-Fluorotriazoles by Silver-Mediated Fluorination of 5-Iodotriazoles
作者:Damin Wang、Wenjing Sun、Taiwei Chu
DOI:10.1002/ejoc.201500338
日期:2015.7
developed for the direct fluorination of 5-iodotriazoles with AgF as fluoride source and N1,N1,N2,N2-tetramethylethane-1,2-diamine (TMEDA) as ligand. This method is compatible with various functional groups. 5-Iodotriazoles without aromatic groups at the 4-position or aliphatic substituents at the N1 position can also be smoothly converted to the corresponding 5-fluorotriazoles. Preliminary mechanism