Regioselective Addition of Mixed-Chalcogenide Iron Carbonyl Clusters Fe<sub>2</sub>(CO)<sub>6</sub>(μ-EE‘) (E ≠ E‘, E, E‘ = S, Se, Te) to a Carbon−Carbon Triple Bond Activated by a Metal Carbene Fragment. Structural Characterization of New Trimetallic Adducts Fe<sub>2</sub>(CO)<sub>6</sub>{μ-SC(Ph)C(Te)[(OEt)CCr(CO)<sub>5</sub>]}, Fe<sub>2</sub>(CO)<sub>6</sub>- {μ-SC(Ph)C(Se)[(OEt)CW(CO)<sub>5</sub>]}, and Fe<sub>2</sub>(CO)<sub>6</sub>{μ-SeC(Ph)C(Te)[(OEt)CW(CO)<sub>5</sub>]}
作者:Pradeep Mathur、Sundargopal Ghosh、Amitabha Sarkar、C. V. V. Satyanarayana、Arnold L. Rheingold、Louise M. Liable-Sands
DOI:10.1021/om9702237
日期:1997.7.1
carbene complexes (CO)5MC(OEt)(C≡CPh) (M = Cr, W) with the mixed-chalcogenide compounds Fe2(CO)6(μ-EE‘) (E ≠ E‘, E, E‘ = S, Se, Te), the following new trimetallic adducts were obtained: Fe2(CO)6μ-EC(Ph)C(E‘)[(OEt)CM(CO)5]} 1−6 (1, 85%, E = S, E‘ = Se, M = Cr; 2, 82%, E = S, E‘ = Se, M = W; 3, 84%, E = S, E‘ = Te, M = Cr; 4, 80%, E = S, E‘ = Te, M = W; 5, 83%, E = Se, E‘ = Te, M = Cr; 6, 81%, E = Se
从过渡
金属炔基
菲舍尔卡宾配合物(CO)5 M C(OEt)(C≡CPh)(M = Cr,W)与混合
硫族化物化合物Fe 2(CO)6(μ -EE')(E≠E',E,E'= S,
SE,Te),得到以下新的三
金属加合物:Fe 2(CO)6 μ-
EC(Ph)C(E')[[ OET)C M(CO)5 ]} 1 - 6(1,85%,E = S,E '=
硒,M =
铬; 2,82%,E = S,E'=
硒中,M = W; 3,84%,E = S,E '=
碲,M =
铬; 4,80%,E = S,E'=
碲中,M = W; 5,83%,E =
SE,E” =
碲, M = Cr;在图6中,81%,E =
SE,E′= Te,M = W。此外,相应的链烯基费卡宾络合物(CO)痕量5中号C(OET)(CH C(OME)PH} 7 - 8(7,M =
铬; 8也形成在,M = W)每一种情况下化合物。1 - 6通过IR和表征1个H,13