New 1H-1-alkyl-6-methyl-3-phenyl-7-phenylazo-pyrazolo[5,1-c][1,2,4]triazoles through regioselective alkylation of 1H-6-methyl-3-phenyl-7-phenylazopyrazolo[5,1-c][1,2,4]triazoles
作者:Vasile-Nicolae Bercean、Valentin Badea、Călin Deleanu、Alina Nicolescu
DOI:10.2478/s11532-011-0151-2
日期:2012.4.1
lazopyrazolo[5,1-c][1,2,4]triazoles ( 2aa-ad ) were obtained by regioselective alkylation of 1H-6-methyl-3-phenyl-7-phenylazopyrazolo[5,1-c][1,2,4]triazoles ( 2a ). 1 H -1-Alkyl-6-methyl-3-phenyl-7-phenylazopyrazolo[5,1-c][1,2,4]triazoles 2aa and 2ab were also prepared by coupling phenyldiazonium chloride with 1 H -1-alkyl-6-methyl-3-phenyl-pyrazolo[5,1-c][1,2,4]triazoles 1aa and 1ab . The new compounds
通过1H-6-甲基-的区域选择性烷基化反应获得1 H -1-烷基-6-甲基-3-苯基-7-苯基偶氮 吡唑[5,1-c] [1,2,4]三唑( 2aa-ad ) 3-苯基-7-苯基偶氮吡唑并[5,1-c] [1,2,4]三唑( 2a )。还通过将氯化苯基重氮与1 H -1-烷基偶合来制备 1 H -1-烷基-6-甲基-3-苯基-7-苯基偶氮 吡唑[5,1-c] [1,2,4]三唑 2aa 和 2ab -6-甲基-3-苯基-吡唑并[5,1-c] [1,2,4]三唑 1aa 和 1ab 。这些新化合物的特征在于IR,UV-VIS,1 H-NMR,13 C-NMR和15明确建立了N-NMR光谱及其结构和实际的互变异构形式。