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Paper | Special issue | Vol 90, No. 2, 2015, pp.1111-1123
Published online, 26th September, 2014
DOI: 10.3987/COM-14-S(K)81
Synthesis of 1,2-Dialkynyldisilanes Incorporated in 10-Membered-Ring System

Yoshiyuki Mizuhata, Yasunobu Egawa, Takahiro Sasamori, and Norihiro Tokitoh*

*Division of Synthetic Chemistry, Organoelement Chemistry, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan


The reduction of a bis(dichloroethynylsilane) bridged by o-xylylene by lithium naphthalenide afforded trans- and cis-isomers of novel 10-membered-cyclic disilanes. Their structures were characterized by X-ray crystallographic analysis, showing the strain around the CC bonds and the close distances between two ethynylene moieties.