Synthesis of N,N′-bis and N,N,N′,N′-tetra-[(3,5-di-substituted-1-pyrazolyl)methyl]para-phenylenediamines: new candidate ligands for metal complex wires

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• 作者：Maria Daoudi ; Najib Ben Larbi ; Abdelali Kerbal ; Brahim Bennani ; Jean-Pierre Launay ; Jacques Bonvoisin ; Taibi Ben Hadda and Pierre H. Dixneuf
• 关键词：Polydentate N-ligands ; Pyrazoles ; Pyrazol-1-ylmethanol ; p-Phenylenediamine
• 刊名：Tetrahedron
• 出版年：2006
• 期刊代码：107_00404020
• 类别：ch
• 出版时间：27 March 2006
• 卷：62
• 期：13
• 页码：3123-3127
• 文件大小：111 K

摘要

A series of tridentate ligands N,N-bis-[(di-substituted-1-pyrazolyl)methyl]arylamines 2–3a,b and benzylamine 4a,b, tetradentate N,N′-bis-[(di-substituted-1-pyrazolyl)methyl]para-phenylenediamines 7a,b and hexadentate N,N,N′,N′-tetra-[(di-substituted-1-pyrazolyl)methyl]para-phenylenediamines 8a,b has been prepared in good yield by condensation of arylamines, benzylamine or para-phenylenediamine with N-hydroxymethyl disubstituted pyrazoles 1a,b. The synthesis and characterisation of these various polydentate ligands are described.