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ChemInform Abstract: Chemistry of Organosilicon Compounds. Part 334. Intramolecular Oligomerization of Disilalkylene (-Me2Si(CH2)nSiMe2-) Bridged Cyclic Triacetylenes.

✍ Scribed by K. EBATA; T. MATSUO; T. INOUE; Y. OTSUKA; C. KABUTO; A. SEKIGUCHI; H. SAKURAI

Publisher: John Wiley and Sons
Year: 2010
Weight: 38 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199718202

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✦ Synopsis

Chemistry of Organosilicon Compounds. Part 334. Intramolecular Oligomerization of Disilalkylene (-Me2Si(CH2)nSiMe2-) Bridged Cyclic Triacetylenes. -Disilalkylene-bridged cyclic triacetylenes (III) are synthesized by coupling of respective dichlorosilanes with bis(ethynyl) Grignard reagents and subjected to transition metal complex mediated intramolecular oligomerization reactions. A variety of π-electron systems such as fulvene (cf. (V)), dimethylenecyclobutene (cf. (VI), ( VII)) and bisallene (cf. (VIII)) are obtained. Structures and some reactions of these π-electron systems are described.

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