期刊
ORGANOMETALLICS
卷 31, 期 12, 页码 4474-4479出版社
AMER CHEMICAL SOC
DOI: 10.1021/om300298q
关键词
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资金
- Deutsche Forschungsgemeinschaft (DFG)
- Ministry of Education, Culture, Sports, Science and Technology of Japan [23000007, 23685015]
- Grants-in-Aid for Scientific Research [23000007, 23685015] Funding Source: KAKEN
N-heterocyclic carbene (NHC) adducts of iron dichloride, (IMes)(2)FeCl2 (la; IMes = 1,3-bis(2,4,6-trimethylphenypimidazol-2-ylidene) and (IEtPh*)(2)FeCl2 (1b; IEtPh* = 1,3-bis((R)-1'-phenylethyl)imidazol-2-ylidene), were prepared in good yields from the reactions of Fe{N(SiMe3)(2)}(2) with imidazolium salts. While the iron atom of la has a tetrahedral geometry, replacement of the chlorides by methyl groups via treatment of la with MeLi led to the formation of the square-planar complex trans-(IMes)(2)FeMe2 (2). The molecular structures of complexes 1a,b and 2 were identified by means of single-crystal X-ray diffraction analysis. Complexes 1a,b and 2 are good catalyst precursors in the transfer hydrogenation of 2'-acetonaphthone, and complex 2 also efficiently catalyzes the hydrosilylation of 2'-acetonaphthone.
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