【摘要】 采用"一锅法",小分子NH3和水杨醛分别与2-氨甲基吡啶和4-氨甲基吡啶经缩合反应合成了两种新型的不对称双席夫碱化合物——2-{1,2-二[(E)-2-羟基苯亚甲氨基]-2-(2-吡啶基)乙基}苯酚(2a)和2-{1,2-二[(E)-2-羟基苯亚甲氨基]-2-(4-吡啶基)乙基}苯酚(2b),其结构经1H NMR,13C NMR,IR和X-射线单晶衍射(2b)表征。2b(CCDC:1 423 247)属单斜晶系,P2(1)/n空间群,晶胞参数a=10.764(3),b=9.725(2),c=21.934(5),β=93.291(9)°,V=2 292.2(9)3,Dc=1.268 mg·cm-3,Z=4,F(000)=920,μ=0.084 mm-1。更多还原

【Abstract】 Two novel asymmetric bis-schiff bases,2-【1,2-bis { [( E)-( 2-hydroxyphenyl) ymethylidene]amino}-2-( 2-pyridinyl) ethyl】phenol( 2a) and 2-【1,2-bis{ [( E)-( 2-hydroxyphenyl) methylidene]amino}-2-( 4-pyridinyl) ethyl】phenol( 2b),were synthesized via one-pot method by condensation of sailcylaldehyde and NH3 with 2-aminomethylpyridine or 4-aminomethylpyridine,respectively.The structures were characterized by1 H NMR,13 C NMR,IR and X-ray single crystal diffraction( 2b).2b( CCDC: 1 423 247) belongs to monoclinic system,space group P2( 1) / n with a = 10. 764( 3) ,b = 9. 725( 2) ,c = 21. 934( 5) ,β = 93. 291( 9) °,V = 2 292. 2( 9) 3,Dc = 1. 268 mg·cm- 3,Z = 4,F( 000) = 920,μ = 0. 084 0 mm- 1.更多还原