| 1 | Synthesis and Fluorescence Spectrum of a Novel Pyrazoline Derivative显示文摘1 Results 2-pyrazolines and carbaozole derivatives are well known fluorescent compounds with high quantum yields[1],and have been investigated in many other respects[2,3].In this paper,carbazole radical was introduced to pyrazoline ring on C-5,and a novel derivative,named 1-phenyl-3-biphenyl-5-(N-ethyl carbazole-3-yl)-2-pyrazoline (PBEP) (5) was synthesized: The product PBEP was characterized by IR,1H NMR,and elementary analysis.Yield: 47.2%.M.P 104-106 ℃.1H NMR (CDCl3) δ/10-6: 1.5(3H,—CH3).2.4(2H,—... | X.Y.Han J.F.Li P.H.Lin D.X.Li C.Dong | 2007 | 复旦学报(自然科学版)2007，46，5： | 0 |
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