Ruthenium-catalysed ortho vinylation of aromatic ketones with alkynes;: unexpected cyclopentaannulation

被引:51
作者
Harris, PWR [1 ]
Rickard, CEF [1 ]
Woodgate, PD [1 ]
机构
[1] Univ Auckland, Dept Chem, Auckland, New Zealand
关键词
ruthenium; aromatic ketones; alkynylsilane; ortho vinylation;
D O I
10.1016/S0022-328X(99)00400-3
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Ruthenium-catalysed coupling of aromatic ketones with alkynylsilanes yielded in most cases ortho vinylation adducts in high yield. The predominant stereochemistry of the newly introduced double bond was E in all but a few cases. In contrast, 1-acetylnaphthalene underwent a one-pot insertion-cyclisation sequence yielding cyclopenta[a]naphthalene derivatives. A bis acetylene gave both mono and bis insertion products. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:168 / 179
页数:12
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