NEW PROTON-IONIZABLE 3,5-DISUBSTITUTED PYRAZOLE CRYPTANDS ABLE TO FORM TRIPYRAZOLATE-DERIVED DINUCLEAR AND TETRANUCLEAR-COMPLEXES OF CU2+ OR ZN2+

被引：31

作者：

KUMAR, M ^{[1
]}

ARAN, VJ ^{[1
]}

NAVARRO, P ^{[1
]}

机构：

[1] CSIC,INST QUIM MED,E-28006 MADRID,SPAIN

来源：

TETRAHEDRON LETTERS | 1995年 / 36卷 / 12期

关键词：

D O I：

10.1016/0040-4039(95)00201-M

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The new trispyrazole-bisTREN Schiff base 4 and its di-Ag+ complex 6 have been obtained by [3+2] condensation of 3,5-pyrazoledicarbaldehyde (1) and tris(2-aminoethyl)amine (2), in the absence or in the presence of Ag+ ions respectively. Following related methods, di-Cu2+ (7) and tetra-Cu2+ (8) tripyrazolate complexes have been obtained from sodium 3,5-diformylpyrazolate 3 and amine 2. Reduction of 4 with NaBH4 yields polyamine 5, from which di-Cu2+ mono-, di- and tri- pyrazolate complexes (9-11) have been prepared. Using C-13 NMR spectroscopy deprotonation of 5 and formation of di-Zn2+ and tetra-Zn2+ tripyrazolate complexes 12 and 13 have been studied.

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页码：2161 / 2164

页数：4

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