[2+1] cycloadditions of terminal alkynes to norbornene derivatives catalyzed by palladium complexes with phosphinous acid ligands

被引:131
作者
Bigeault, J [1 ]
Giordano, L [1 ]
Buono, G [1 ]
机构
[1] Uniz Aix Marseille P Cezanne, Fac Sci & Tech St Jerome, EGIM, CNRS,UMR 6180,Lab Synth Asymetr,Case A62, F-13397 Marseille, France
关键词
alkynes; cycloaddition; cyclopropanes; palladium; phosphane ligands;
D O I
10.1002/anie.200500879
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Two plus one makes three-membered rings in an unusual [2+1] cycloaddition of phenylethyne with norbornadiene as catalyzed by a new palladium(II) complex with phosphinous acid ligands (see scheme). A related complex (cyclohexyl replaces tBu) efficiently catalyzes the [2+1] cycloaddition of norbornene derivatives with various terminal alkynes to provide functionalized exo-alkylidene-cyclopropanes. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:4753 / 4757
页数:5
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