Formation of C-X Bonds through Stable Low-Electron-Count Cationic Platinum(IV) Alkyl Complexes Stabilized by N-Heterocyclic Carbenes

被引：20

作者：

Rivada-Wheelaghan, Orestes ^{[1
]}

Rosello-Merino, Marta ^{[1
]}

Diez, Josefina ^{[2
]}

Maya, Celia ^{[1
]}

Lopez-Serrano, Joaquin ^{[1
]}

Conejero, Salvador ^{[1
]}

机构：

[1] Univ Seville, CSIC, Ctr Innovac Quim Avanzada ORFEO CINQA, IIQ,Dept Quim Inorgan, Seville 41092, Spain

[2] Univ Oviedo, Dept Quim Organ & Inorgan, E-33006 Oviedo, Spain

来源：

ORGANOMETALLICS | 2014年 / 33卷 / 21期

关键词：

REDUCTIVE ELIMINATION; METHYL TRANSFER; PD-IV; ACTIVATION; LIGANDS; FUNCTIONALIZATION; OXIDATION; PT(IV); CARBON;

D O I：

10.1021/om500881k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cationic five-coordinate Pt(IV) alkyl complexes stabilized by bulky N-heterocyclic carbenes have been isolated and fully characterized. Related species have been postulated as key intermediates in carbonheteroatom coupling reactions and most particularly in Shilov-type chemistry. The alkyl groups exhibit a pronounced electrophilic character and can undergo nucleophilic addition of pyridine, bromide, or iodide to form new carbonheteroatom bonds. Nevertheless, direct reductive coupling to form CX bonds can be operative in the absence of an external nucleophile source.

引用

页码：5944 / 5947

页数：4