Cobalt coordination induced functionalized molecular clefts:: Isolation of {CoIII-ZnII} heterometallic complexes and their applications in Beckmann rearrangement reactions

被引：92

作者：

Mishra, Anurag ^{[1
]}

Ali, Afsar ^{[1
]}

Upreti, Shailesh ^{[2
]}

Gupta, Rajeev ^{[1
]}

机构：

[1] Univ Delhi, Dept Chem, Delhi 110007, India

[2] Indian Inst Technol, Dept Chem, New Delhi 110016, India

来源：

INORGANIC CHEMISTRY | 2008年 / 47卷 / 01期

关键词：

D O I：

10.1021/ic7016424

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The present work shows that the CO3+ coordination to the deprotonated pyridine-amide ligands orients the noncoordinated or hanging pyridine rings, thus furnishing a cleft in which Zn2+ ions coordinate. The building block approach points out a strategy to incorporate a Lewis acidic metal center in the periphery. This strategy has been used to synthesize CO3+ -centered-Zn2+ peripheral heterobi metallic complexes. These heterobi metallic complexes have been thoroughly characterized including structural studies and have been successfully shown to catalyze the Beckmann rearrangement of the aldoximes and ketoxime to their respective amides.

引用

页码：154 / 161

页数：8

共 59 条

[1] Improved procedures for the Beckmann rearrangement: the reaction of ketoxime carbonates with boron trifluoride etherate [J].