As a society publisher, everything we do is to support the scientific community – so you can trust us to always act in your best interests, Electric Literature of 1273-94-5, and get your work the international recognition that it deserves. Introducing a new discovery about 1273-94-5, Name is 1,1′-Diacetylferrocene
Treatment of lithium(1-dimethylamino-ethenyl)cyclopentadienide (5a) with FeCl2 generated the corresponding substituted ferrocene (2a) that rapidly underwent cyclization in a subsequent Mannich-type condensation reaction to yield the unsaturated dimethylamino-substituted [3]ferrocenophane 3a. The treatment of 1,1?-diacetylferrocene (1) with dimethylamine, diethylamine or piperidine in the presence of TiCl4 resulted in the formation of the analogously structured functionalized [3]ferrocenophanes 3a-3c, respectively, by a related intramolecular enamine-condensation pathway (complexes 3a and 3b were characterized by X-ray diffraction). Catalytic hydrogenation of 3a-c in THF at Pd/C gave the corresponding saturated amino-substituted [3]ferrocenophane systems 6a-c. The catalytic hydrogenation proceeds trans-product selectively with trans-6-cis-6 ratios ranging between ca. 5:1 and 7:1 for these examples (the complexes trans-6a·HCl, trans-6b, and trans-6c were characterized by X-ray crystal structure analysis). Quaternization of 6a by treatment with methyliodide followed by the reaction with pyrrolidine led to amine exchange at the [3]ferrocenophane framework with the formation of 6d. The amine exchange proceeds stereoselectively with a predominant overall retention (the trans-6d-cis-6d ratio obtained is again ca. 7:1). The complex trans-6d was characterized by X-ray diffraction.
This is the end of this tutorial post, and I hope it has helped your research about 1273-94-5, you can contact me at any time and look forward to more communication. Electric Literature of 1273-94-5
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