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新的膦钯配合物的合成、表征及其催化氢化性能
Synthesis, Characterization of New Palladium Complexes and Their Catalytic Properties to Hydrogenation Reaction

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新的膦钯配合物的合成、表征及其催化氢化性能.pdf (182.7Kb)
Date
1998
Author
许翩翩
高景星
丁开宁
林东海
阮源萍
陈守正
黄培强
万惠霖
蔡启瑞
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  • 化学化工-已发表论文 [14237]
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Abstract
等摩尔的Pd(CH3Cn)2Cl2与邻-二苯基膦苯甲醛在乙醇中回流反应,生成了缩醛化膦配体配位的钯氯化物PdCl2{PH2P[O-C6H4CH(OC2H5)2]}2(I).双亚胺双膦配体n,n′-双-[邻-(二苯基膦)苯亚甲基]乙二胺(简称P2n2)与1或2摩尔的Pd(CH3Cn)2Cl2在二氯甲烷中回流反应,分别高产率地制得PdCl2(P2n2)(I)和Pd2Cl2(P2n2)(II).进行了元素分析、谱学表征或X射线结构分析.考察了这些配合物催化苯乙烯和丙烯酸的氢化.双核的钯配合物Pd2Cl2(P2n2)发挥了最高活性.
 
The interaction of Pd(CH_3CN)_2Cl_2 and one equivalent of o(diphenylphosphino)benzaldehyde in refluxing ethanol gives transPdCl_2{Ph_2P(O-C_6H_4CH(OC_2H_5)_2)}_2 (I) in moderate yield.Mononuclear palladium complex PdCl_2(P_2N_2) (Ⅱ) could be prepared on high yield via the interaction of Pd(CH_3CN)_2Cl_2 and one equivalent of N, N′-bis(O-(diphenylphosphino) benzylidene)ethylenediamine(P_2N_2 for short) in refluxing dichloromethane.If two equivalent of Pd(CH_3CN)_2Cl_2 is used, a new dinuclear palladium complex Pd_2Cl_2(P_2N_2) (Ⅲ) will be formed.Complexes IIII have been fully characterized by elementary analysis and spectroscopic methods.The structure of complex I has been established by an Xray diffraction study.The complexes IIII as catalyst for homogeneous hydrogenation of styrene and acrylic acid have been investigated and the results indicate the dinuclear complex III is more effective catalyst.
 
Citation
厦门大学学报(自然科学版),1998,(1):56-61
URI
https://dspace.xmu.edu.cn/handle/2288/107591

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