| Autor: |
Verpekin VV; Institute of Chemistry and Chemical Technology, Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50-24, Krasnoyarsk, 660036, Russian Federation., Kreindlin AZ; A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119991, Russian Federation., Semeikin OV; A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119991, Russian Federation., Smol'yakov AF; A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119991, Russian Federation., Dolgushin FM; A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119991, Russian Federation., Chudin OS; Institute of Chemistry and Chemical Technology, Krasnoyarsk Research Center, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50-24, Krasnoyarsk, 660036, Russian Federation., Ustynyuk NA; A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119991, Russian Federation. |
| Abstrakt: |
The reaction of Cp(CO) 2 FeI with 2-ethynyl-pyridine under Sonogashira conditions [5% PdCl 2 (PPh 3 ) 2 , 10% CuI, THF-NEt 3 (2:1)] afforded the title binuclear μ-pyridyl-vinyl-idene FePd complex ( FePd1 ) as a benzene solvate, [FePd(C 5 H 5 )(C 7 H 5 N)I(CO) 2 ]·C 6 H 6 , in a very low yield rather than the expected iron o -pyridyl-ethynyl complex Cp(CO) 2 Fe-C≡C-(2-C 5 H 4 N). The Fe and Pd atoms in FePd1 are bridged by carbonyl and pyridyl-vinyl-idene ligands, the pyridyl N atom being bonded to the palladium atom. The use of equimolar amounts of PdCl 2 increases the yield of FePd1 to 12%. The reaction pathway leading to FePd1 is proposed. |
