FORMATION OF MONO-NUCLEAR AND DI-NUCLEAR COMPLEXES OF ZN2+ FROM A 26 MEMBERED TETRAESTER CROWN OF 3,5-DISUBSTITUTED PYRAZOLE ABLE TO ACT AS NEUTRAL AND DIANIONIC LIGAND

被引：28

作者：

ACERETE, C

BUENO, JM

CAMPAYO, L

NAVARRO, P

RODRIQUEZFRANCO, MI

SAMAT, A

机构：

[1] UNIV AUTONOMA MADRID,FAC CIENCIAS,DEPT QUIM,E-28049 MADRID,SPAIN

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

[3] UNIV AIX MARSEILLE 2,FAC SCI LUMINY,CNRS,URA 1320,CHIM ORGAN & BIOORGAN GRP,F-13288 MARSEILLE 9,FRANCE

来源：

TETRAHEDRON | 1994年 / 50卷 / 16期

关键词：

D O I：

10.1016/S0040-4020(01)85015-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A selective synthesis of bis(3,5-diketo-1H-pyrazole)-[26]crown-12 (1,L(1)) has been performed. Its deprotonation pK(a) values, and those of the acyclic analogues (3-5) have been measured. The disodium dipyrazolate salt of 1(2,[L(2)](2-)2Na(+)) has been isolated, and mono- and di- nuclear complexes of Zn2+ obtained from 1 ([L(1)Zn](2+)) and 2 ([L(2)Zn(2)](2+)) have been studied by C-13 NMR spectroscopy in DMSO-d(6) solution.

引用

页码：4765 / 4774

页数：10

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