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Citation: AN Yue, ZHOU Guang-Hua, XING Yong-Heng, MU Ping-Ping, HU Jie-Han. Synthesis and Structure Characterization of 5-Phenyl-1H-3-Pyrazole Hydrazones[J]. Chinese Journal of Applied Chemistry, ;2008, 25(5): 539-542. shu

Synthesis and Structure Characterization of 5-Phenyl-1H-3-Pyrazole Hydrazones

1.
a College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029;
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b Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116024

Corresponding author: AN Yue,
Received Date: 30 May 2007
Available Online: 2 August 2007
Fund Project: 国家自然科学基金资助项目(20751036) (20751036)

Ethyl 5-phenyl-1H-pyrazole-3-carboxylate was synthesized by one-pot reaction method,and was used further for the synthesis of nine 5-phenyl-1H-3-pyrazole hydrazones,which were characterized by elemental analysis,IR and ¹H NMR.Furthermore,a trinuclear copper complex was obtained in the monoclinic space group of C2/c with cell dimensions of a=2.576 7(3) nm,b=1.194 42(15) nm,c=14.126 5(17) nm,β=98.993(2)°,V=4.294 1(9) nm³,Z=4,D_c=1.629 g/cm³ and R₁=0.035 5 by the reaction of Cu(AcO)₂ and 5-phenyl-1H-pyrazole-3-carboxylic acid which was obtained by hydrolysis of ethyl 5-phenyl-1H-pyrazole-3-carboxylate,and as a result the molecular structure of pyrazole was confirmed.
- pyrazole,
- hydrazones,
- phenyl-H-pyrazole carboxylic acid
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