Design and synthesis of new functional compounds related to ferrocene bearing heterocyclic moieties
作者:A.A.O. Sarhan、T. Izumi
DOI:10.1016/s0022-328x(03)00216-x
日期:2003.5
The synthesis of heterocyclic systems incorporating more than one ferrocene unit was shown to be a facile and convenient route for the synthesis of new ferrocene-heterocycles. Hydrazide 2 was prepared and cyclized to oxadiazole, triazole, and pyrazole using the procedures described in this context with good yields. A pyrazolone derivative could not be obtained and instead a hydrazone derivative 17
包含多于一个二茂铁单元的杂环体系的合成被证明是合成新的二茂铁-杂环的简便途径。制备酰肼2,并使用本文所述的方法以高收率将其环化为恶二唑,三唑和吡唑。无法获得吡唑啉酮衍生物,而是分离出derivative衍生物17。酰肼2用芳香醛和二茂铁-1,1'-二甲醛衍生物,得到相应的腙缩合11A - Ç和dihydrazones 12,14和18高产。与母体二茂铁和乙酰基二茂铁比较,研究了选定的二茂铁-杂环8和9的循环伏安法(CV)。化合物8的CV揭示了一个额外的准可逆单电子氧化波,频率为849 mV,对应于通过SCH 2 CO间隔基连接至恶二唑环的第二个二茂铁单元。