Practical synthesis of 1,3-diaryl-5-alkylpyrazoles by a highly regioselective N-arylation of 3,5-disubstituted pyrazoles with 4-fluoronitrobenzene
作者:Xiao-jun Wang、Jonathan Tan、Karl Grozinger、Raj Betageri、Tom Kirrane、John R Proudfoot
DOI:10.1016/s0040-4039(00)00849-2
日期:2000.7
3-Aryl-5-alkylpyrazoles undergo a highly regioselective arylation on N-1 atom with 4-fluoronitrobenzene in the presence of base to yield the corresponding 1-(4-nitrophenyl)pyrazoles.
3-芳基-5-烷基吡唑在碱存在下在N-1原子上与4-氟硝基苯进行高度区域选择性芳基化反应,生成相应的1-(4-硝基苯基)吡唑。