Cyclooligomerization of Mono- and Diazulenylethynes Catalyzed by Transition Metal Complexes

被引:13
作者
Elwahy, Ahmed H. M. [1 ]
Hafner, Klaus [1 ]
机构
[1] Tech Univ Darmstadt, Clemens Schopf Inst Organ Chem & Biochem, D-64287 Darmstadt, Germany
关键词
Cobalt catalyst; Ethynylazulenes; Azulenyl benzenes; Azulenylcyclobutadienes; Cyclooligomerization; Cross-coupling; Polycycles; SUBSTITUTED BENZENE-DERIVATIVES; MULTIELECTRON REDOX SYSTEM; ALKYNE CYCLOTRIMERIZATION; 2+2+2 CYCLOADDITION; COBALT; AZULENE; BEHAVIOR; LIGAND; CHROMOPHORES; EFFICIENT;
D O I
10.1002/ejoc.200900946
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Cyclooligomerization of 1-ethynylazulenes 1a, b, 6 and 7 as well as 1,2-bis(azulen-1-yl)ethynes 10a,b and 11 with CpCo(CO)(2) to the corresponding l,2,4-tris(azulen-1-yl)benzenes 14 a,b, 18 and 19 as well as [bis- and tetrakis(azulen-1-yl)cyclobutadiene] cobalt complexes 17a,b, 30a,b and 31 is described.
引用
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页码:265 / 274
页数:10
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