A novel palladium-catalyzed tandem dimerization and cyclization of acetylenic ketones.: A convenient method for 3,3′-bifurans

被引:24
作者
Jeevanandam, A [1 ]
Narkunan, K [1 ]
Cartwright, C [1 ]
Ling, YC [1 ]
机构
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30043, Taiwan
关键词
D O I
10.1016/S0040-4039(99)00889-8
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Alkynones undergo rearrangement in the presence of Pd(PPh3)(4) and triethylamine in tetrahydrofuran at room temperature to give 2,5-substituted furans, but under similar conditions PdCl2(PPh3)(2) by a tandem dimerization and cyclization, gives 3,3'-bifurans predominantly. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码:4841 / 4844
页数:4
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