Details

Autor(en) / Beteiligte

• Murahashi, Tetsuro
• Kato, Naohiro
• Ogoshi, Sensuke
• Kurosawa, Hideo

Titel

Synthesis and structure of dipalladium complexes containing cyclooctatetraene and bicyclooctatrienyl ligands

Ist Teil von

• Journal of organometallic chemistry, 2008-03, Vol.693 (5), p.894-898

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The reaction of the reactive dipalladium(I) complex [Pd 2(CH 3CN) 6][BF 4] 2 with cyclooctatetraene (COT) (1 equiv.) yields the mono-adduct [Pd 2(μ-η 3:η 3-C 8H 8)(CH 3CN) 4][BF 4] 2. The mono-adduct reacts with COT to give the bicyclooctatrienyl complex [Pd 2(μ-η 3:η 3-C 16H 16)(CH 3CN) 4][BF 4] 2. The products were structurally characterized by X-ray crystallographic analyses. The reaction of a substitutionally labile dipalladium(I) complex [Pd 2(CH 3CN) 6][BF 4] 2 ( 1) with 1,3,5,7-cyclooctatetraene (COT) in acetonitrile afforded [Pd 2(μ-η 3:η 3-C 8H 8)(CH 3CN) 4][BF 4] 2 ( 2). The reaction of 2 with COT in acetonitrile yielded [Pd 2(μ-η 3:η 3-C 16H 16)(CH 3CN) 4][BF 4] 2 ( 4), where COT is dimerized via C–C bond formation. Complexes 2 and 4 were structurally characterized by X-ray diffraction analyses. In dichloromethane, COT isomerized to styrene at room temperature in the presence of catalytic amount of 1, 2, or 4.