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Towards tetrasilabicyclo[1.1.0]butane: reductive coupling of 1-t-butyl-2,2-dimesityl-1,1,2-trichlorodisilane

✍ Scribed by Scott Collins; James A. Duncan; Yoshio Kabe; Shu Murakami; Satoru Masamune

Publisher: Elsevier Science
Year: 1985
Tongue: French
Weight: 319 KB
Volume: 26
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)98850-6

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✦ Synopsis

Reductive coupling of 1-t-butyl-2,2-dimesityl-1,1,2-trichlorodisilane employing Li-naphthalenide furnishes, on oxygenation or hydrolysis of the reaction mixture, products (8-11) that may arise from insertion of oxygen into or the addition of water across -3the Sl-Si bonds of 1,3-di-t-butyl-2,2,4,4-tetramesityltetrasilabicyclo-[l.l.O]butane (3). The preparation of bicyclic polysilanes has received limited attention despite considerable interest in the properties of these compounds and cyclic polysilanes in general.2 This is due, in part, to the dearth of general synthetic methods for the regioselective formation of silicon-silicon bonds that are required for their construction. We report here an initial attempt to prepare the lowest homologue of this family of compounds, tetrasilabicyclo[l.l.O]butane, by reductive coupling of a 1,1,2-trichloro-

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