Single and multiple insertion of carbon-carbon triple bonds into the palladium-aryl bond of cationic and neutral arylpalladium complexes with a 2,2 '-bipyridine ligand

Authors
Yagyu, T Osakada, K Brookhart, M
Citation
T. Yagyu et al., Single and multiple insertion of carbon-carbon triple bonds into the palladium-aryl bond of cationic and neutral arylpalladium complexes with a 2,2 '-bipyridine ligand, ORGANOMETAL, 19(11), 2000, pp. 2125-2129
Citations number
37
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
19
Issue
11
Year of publication
2000
Pages
2125 - 2129
Database
ISI
SICI code
0276-7333(20000529)19:11<2125:SAMIOC>2.0.ZU;2-I
Abstract
Dimethyl acetylenedicarboxylate reacts with PdI(C6H3Me2-3,5)(bpy) in the pr esence of AgBF4, causing rapid insertion of three acetylene molecules into the Pd-C bond to afford [Pd{C(CCOOMe-CZ=CZ-CZ=CZ)(Z)(C6H3Me2-3,5)}(byp)]BF4 (Z = COOMe), whereas a similar reaction without AgBF4 gives the product of a single insertion of the carbon-carbon triple bond, Pd(I)(CZ=CZC(6)H(3)Me (2)-3,5)(bpy).