Facile Synthesis of 5-Substituted 1<i>H</i>-Tetrazoles Catalyzed by Tetrabutylammonium Hydrogen Sulfate in Water
作者:Zengtao Wang、Zhiguo Liu、Seung Hoon Cheon
DOI:10.1002/bkcs.10045
日期:2015.1
Facilesynthesis of 5‐substituted 1H‐tetrazoles was achieved by treating nitriles with NaN3 in water or toluene in the presence of tetrabutylammoniumhydrogensulfate (TBAHS). The reaction could be carried out in water as well as in toluene. The procedure is environment‐friendly, practical, and provides excellent yield of tetrazoles.
The present invention provides compounds of Formula I or Formula II, or the pharmaceutically acceptable salts or prodrugs thereof, pharmaceutical compositions comprising compounds or Formula I or Formula II, and methods for treating neurological disorders and neurodegenerative diseases, particularly migraine.