Platinum(II)-catalyzed 1,6-diene cycloisomerizations:: Turnover in the absence of β-hydride elimination

被引：60

作者：

Kerber, WD ^{[1
]}

Koh, JH ^{[1
]}

Gagné, MR ^{[1
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

来源：

ORGANIC LETTERS | 2004年 / 6卷 / 17期

关键词：

D O I：

10.1021/ol048780u

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Electrophilic pincer-ligated Pt(II)-clications are efficient catalysts for the cycloisomerization of 1,6-dienes, initiated by alkene activation. The tridentate ligands inhibit beta-hydride elimination and thus enable cationic mechanisms that turnover by Pt(II) extrusion. PPP ligands lead to cyclopropane products, while PNP ligands provide cyclohexene products; mechanistic issues are also discussed.

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页码：3013 / 3015

页数：3

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