Efficient fluoride-mediated synthesis of 5-alkyl amino- and ether-substituted pyrazoles
作者:Andrei Shavnya、Subas M. Sakya、Martha L. Minich、Bryson Rast、Kristin Lundy DeMello、Burton H. Jaynes
DOI:10.1016/j.tetlet.2005.08.022
日期:2005.10
Fluoride-mediated nucleophilic substitution reactions of 1-(4-methylsulfonyl (or sulfonamido)-2-pyridyl)-5-chloro-4-cyano pyrazoles with various amines and alcohols occur under mild conditions to provide the 5-alkyl amino and ether pyrazoles in moderate to high yields.
1-(4-甲基磺酰基(或磺酰胺基)-2-吡啶基)-5-氯-4-氰基吡唑与各种胺和醇的氟化物介导的亲核取代反应在温和条件下发生,以提供5-烷基氨基和醚吡唑中等至高产。