Face-to-face fixed ferrocenes. Synthesis and properties of 2,10-diferrocenyl- and 2,5,7,10-tetraferrocenyl-1,6-methano[10]annulenes
作者:Masahiko Iyoda、Toshitaka Okabe、Motomi Katada、Yoshiyuki Kuwatani
DOI:10.1016/s0022-328x(98)00791-8
日期:1998.10
10-Diferrocenyl- and 2,5,7,10-tetraferrocenyl-1,6-methano[10]annulenes, in which the ferrocene nuclei are held proximate and cofacial, have been synthesized by using the palladium-catalyzed cross-coupling reaction of ferrocenylzinc chloride with 2,10-dibromo- and 2,5,7,10-tetrabromo-1,6-methano[10]annulenes. The structures of the face-to-face fixed ferrocene systems were determined by X-ray analysis. Cyclic voltammetric
通过使用钯催化的交叉偶联反应,合成了2,10-二茂铁基-和2,5,7,10-四铁茂铁基-1,6-甲基[10]环戊烯,其中二茂铁核保持靠近并处于界面。二茂铁基氯化锌与2,10-二溴-和2,5,7,10-四溴-1,6-甲基[10]环烷的反应。通过X射线分析确定了面对面的固定二茂铁体系的结构。二铁茂铁基和四铁茂铁基-1,6-甲基[10]环戊烯的循环伏安法测量分别显示了两个和三个氧化还原波,反映了二茂铁核的贯穿空间和贯穿键的相互作用。