Divergent reactivity of alk-5-ynylidenecyclo propanes in the presence of the 1st or the 2nd generation Grubbs' catalysts

被引：14

作者：

Trillo, B

Gulías, M

López, F

Castedo, L

Mascareñas, JL

机构：

[1] Univ Santiago de Compostela, CSIC, Dept Quim Organ, Santiago De Compostela 15782, Spain

[2] Univ Santiago de Compostela, CSIC, Unidad Asociada CSIC, Santiago De Compostela 15782, Spain

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2005年 / 690卷 / 24-25期

关键词：

alkylidenecyclopropanes; ruthenium; metathesis; cycloaddition;

D O I：

10.1016/j.jorganchem.2005.07.009

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Alk-5-ynylidenecyclopropanes, by virtue of being equipped with a strained cyclopropane system, can be divergently elaborated into bicyclo[3.3.0]octenes or exocyclopropylidenecycloalkenes depending on whether they react with the first or the second generation Grubbs' ruthenium carbenes. While the highly reactive second generation system catalyses the formation of ring-closing metathesis products, the less [metathesis] active first generation carbene promotes an intramolecular [3 + 2] cycloaddition to give the bicarbocyclic skeletons. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：5609 / 5615

页数：7

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