Remarkable, sterically induced rate enhancement in the insertion of allenes into palladium-methyl bonds

被引：43

作者：

Canovese, L ^{[1
]}

Visentin, F

Chessa, G

Uguagliati, P

Bandoli, G

机构：

[1] Univ Venice, Dipartimento Chim, I-30123 Venice, Italy

[2] Univ Padua, Dipartimento Sci Farmaceut, I-35131 Padua, Italy

来源：

ORGANOMETALLICS | 2000年 / 19卷 / 08期

关键词：

D O I：

10.1021/om991018p

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The rate of insertion of methyl-substituted allenes into the Pd-Me bond in chelate pyridine-thioether complexes [PdCl(Me)(R'N-SR)] (R'N-SR = 6-R'-C5H3N-2-CH2SR) to give 2-methylallyl derivatives is remarkably enhanced by the presence of a methyl group in position 6 of the pyridine ring, which induces distortion, on the main coordination plane, resulting in a metal substrate more prone to allene insertion. The flexibility of the sulfur-donor chelate ligand appears to be a paramount requisite.

引用

页码：1461 / 1463

页数：3

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