Formation of a cyclobutylidene ring: Intramolecular [2+2] cycloaddition of allyl and vinylidene C=C bonds under mild conditions

被引：57

作者：

Alvarez, P

Lastra, E

Gimeno, J ^{[1
]}

Bassetti, M

Falvello, LR

机构：

[1] Univ Oviedo, CSIC, Inst Quim Organomet Enrique Moles, Unidad Asociada,Dept Quim Organ & Inorgan, E-33006 Oviedo, Spain

[2] Univ Roma La Sapienza, CNR, Ist Chim Composti Organomet, Sez Roma, I-00185 Rome, Italy

[3] Univ Zaragoza, Dept Quim Inorgan, E-50009 Zaragoza, Spain

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 09期

关键词：

D O I：

10.1021/ja027209s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Intramolecular [2 + 2] cycloaddition of two C=C bonds in vinylidene complexes [Ru(η5-C9H7){=C=C(R)H}(PPh3){κ1-(P)-PPh2(C3H5)][BF4] affords cyclobutylidene complexes [Ru(η5-C9H7){κ2-(P,C)-(=(CC(R)HCH2CHCH2PPh2)}(PPh3)]-[BF4]. which can be also obtained by reaction of terminal alkynes with [Ru(η5-C9H7)(PPh3){κ3-(P,C,C)-PPh2(C3H5)}][PF6]. The reaction proceeds under mild conditions via vinylidene complexes, and the activation parameters were determined by kinetic studies. Copyright © 2003 American Chemical Society.

引用

页码：2386 / 2387

页数：2

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