Electroreductive synthesis of oligosilanes and polysilanes with ordered sequences

The stepwise elongation of SiSi or SiGe chain was 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 dichl...

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Bibliographic Details
Published in:	Journal of organometallic chemistry Vol. 611; no. 1; pp. 26 - 31
Main Authors:	Ishifune, Manabu, Kashimura, Shigenori, Kogai, Yasumichi, Fukuhara, Yasuyoshi, Kato, Tomo, Bu, Hang-Bom, Yamashita, Natsuki, Murai, Yoshibiro, Murase, Hiroaki, Nishida, Ryoichi
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 06-10-2000
Subjects:	1,3-Dichlorotrisilanes 1,3-Dihydrotrisilanes Electroreductive polymerization Magnesium electrode Polysilanes Silane–germane copolymers 1,3-Dichlorotrisilanes Silane–germane copolymers Polysilanes Magnesium electrode Electroreductive polymerization 1,3-Dihydrotrisilanes
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Summary:	The stepwise elongation of SiSi or SiGe chain was 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 3 and 5 were readily transformed to the corresponding 1,3-dichlorotrisilane ( 6) and bis(chlorosilyl)germane ( 7), respectively. The electroreductive polymerization of the resulting dichlorooligosilanes using magnesium electrodes in tetrahydrofuran was successfully applied to the synthesis of sequence-ordered polysilanes.
ISSN:	0022-328X 1872-8561
DOI:	10.1016/S0022-328X(00)00327-2