Application In Synthesis of 1,1′-Dibromoferrocene, Researchers are common within chemical engineering and are often tasked with creating and developing new chemical techniques, frequently combining other advanced and emerging scientific areas.1293-65-8, Name is 1,1′-Dibromoferrocene, molecular weight is 335.76. belongs to iron-catalyst compound, In an Article，once mentioned of 1293-65-8
1,1′-Diaminoferrocene (3) was conveniently synthesized by employing a Gabriel synthesis in two steps starting from 1,1′-dibromoferrocene (1). Compound 1 was reacted with 2.5 equivalents of phthalimide in the presence of Cu 2O using 4-picoline as a solvent to give 1,1′-diphthalimidoferrocene (2) in a moderate yield. Hydrazinolysis of 2 in EtOH afforded 3 in good yields of ca. 70%. The subsequent reaction of 3 with two equivalents of ethyloxalyl chloride in THF gave the diethyl ester of N,N’-ferrocenylene bis(oxamic acid) (1,1′-fcbaH2Et2, 4). The solution obtained by treating 4 with two equivalents of n-Bu4NOH in H2O was added to a solution of Pd(AcO)2 in THF to give the palladium complex [n-Bu 4N]2[Pd(1,1′-fcba)] (5) in ca. 80% yield. The compounds 24 were characterized by 1H, 13CNMR and IR spectroscopy as well as elemental analysis and the heterobinuclear complex 5 by 1H NMR and IR spectroscopy, elemental analysis and by a single-crystal X-ray diffraction study.
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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