You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs; Related Products of 1273-94-5, or in a public-sector research center, helping to ensure national healthcare provision keeps pace with new discoveries.In a article, mentioned the application of 1273-94-5, Name is 1,1′-Diacetylferrocene, molecular formula is C14H6FeO2
The enantiomerically pure dibromoferrocene 3 [(Sp,S p)-1,1?-dibromo-2,2?-di(isopropyl)ferrocene], equipped with two iPr groups in alpha positions, was prepared using known “Ugi amine” chemistry. Species 3 was targeted in order to gain access to new [1]ferrocenophanes ([1]FCPs) to be used as monomers for ring-opening polymerization. The iPr groups on the sandwich unit were introduced to stabilize bridging moieties, as well as to increase solubilities of targeted metallopolymers. The planar chiral dibromide 3 can quantitatively be lithiated at 0 C [2 equiv nBuLi, hexanes/thf (9:1), 30 min]. Salt-metathesis reactions with respective element dichloride species gave chiral [1]FCPs with a variety of bridging moieties [ERx=Ga[2-(Me2NCH 2)C6H4] (4 a), SiMe2 (4 b), SntBu2 (4 c), BNiPr2 (4 d)]. The new [1]FCPs were fully characterized including single-crystal X-ray analysis. The stabilizing iPr groups on the Cp rings increase the thermal stabilities of 4 b-d compared to known [1]FCPs, equipped with the same bridging moieties. All three compounds 4 b-d are volatile and could be isolated by vacuum sublimation. Our new approach to [1]FCPs has the potential to overcome many of the existing difficulties in ferrocenophane chemistry, such as limited stability of starting monomers and low solubilities of resulting polyferrocenes. Closing the gap: The preparation of [1]ferrocenophanes with a variety of bridging elements was accomplished by using chiral ferrocene derivatives (see scheme). The isopropyl groups on the sandwich unit serve as protective and solubilizing moieties. The new synthetic approach is superior to the common synthesis of [1]ferrocenophanes, when dilithioferrocene-tmeda is used as the starting material. Copyright
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Reference:
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion