Copper-catalyzed dimerization of chromium Fischer carbene complexes:: synthesis of dialkoxytrienes and their Nazarov-type cyclization to 2-alkoxy-2-cyclopentenones

被引：28

作者：

Barluenga, J ^{[1
]}

Barrio, P ^{[1
]}

Vicente, R ^{[1
]}

López, LA ^{[1
]}

Tomás, M ^{[1
]}

机构：

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

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2004年 / 689卷 / 23期

关键词：

chromium carbenes; copper(I) carbenes; carbene transfer; dimerization; 2-cyclopentenone; Nazarov reaction;

D O I：

10.1016/j.jorganchem.2004.07.005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Fischer carbene complexes 1 underwent a clean ligand dimerization reaction yielding functionalized olefins and trienes 4 in the presence of copper (1) catalysts. If treated with trifluoroacetic acid (TFA), trienes 4c, d, f undergo a cyclization process (Nazarov reaction) which furnishes cyclopentenone derivatives 6c, d, 7c, d and 8 in good yields. Finally, the Fischer aminocarbene 9 efficiently cyclodimerizes to the substituted arene 10 in the presence of CuBr. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：3793 / 3799

页数：7

共 33 条

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