Electroreductive synthesis of oligosilanes and polysilanes with ordered sequences
作者:Manabu Ishifune、Shigenori Kashimura、Yasumichi Kogai、Yasuyoshi Fukuhara、Tomo Kato、Hang-Bom Bu、Natsuki Yamashita、Yoshibiro Murai、Hiroaki Murase、Ryoichi Nishida
DOI:10.1016/s0022-328x(00)00327-2
日期:2000.10
achieved by the electroreductive cross-coupling reaction of chlorohydrosilanes with dichlorooligosilanes using magnesium electrodes. The electroreductive cross-coupling reaction of chlorodimethylsilane (1) with dichlorodiphenylsilane (2) or dichlorodiphenylgermane (4), for instance, gave 1,3-dihydro-1,1,3,3-tetramethyl-2,2-diphenyltrisilane (3) or bis(hydrodimethylsilyl)germane (5) in good yield. Compounds
SiSi或SiGe链的逐步伸长是通过使用镁电极的氯代氢硅烷与二氯代低聚硅烷的电还原交叉偶联反应实现的。例如,氯二甲基硅烷(1)与二氯二苯基硅烷(2)或二氯二苯基锗烷(4)的电还原交叉偶联反应得到1,3-二氢-1,1,1,3,3-四甲基-2,2-二苯基三硅烷(3)或双(氢二甲基甲硅烷基)锗烷(5),收率高。化合物3和5易于转化为相应的1,3-二氯三硅烷(6)和双(氯甲硅烷基)锗烷(7), 分别。使用镁电极在四氢呋喃中进行的二氯低聚硅烷的电还原聚合已成功用于合成顺序有序的聚硅烷。