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    National Tsing Hua University Institutional Repository > 歷任校長 > 劉兆玄 (1987-1993) > 期刊論文 >  Cycloaddition of Disilacyclobutenes in the Presence of Nickel Tetracarbonyl


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81063


    Title: Cycloaddition of Disilacyclobutenes in the Presence of Nickel Tetracarbonyl
    Authors: Liu, C. S.;Cheng, C. W.
    教師: 劉兆玄
    Date: 1975
    Publisher: Royal Society of Chemistry
    Relation: Journal of the American Chemical Society, Royal Society of Chemistry, Volume 97, Issue 23, 1974, Pages 6746–6749
    Keywords: Cycloaddition
    Disilacyclobutenes
    Nickel
    Tetracarbonyl
    Abstract: 3-tert-Butyl-1 ,1,2,2-tetrafluoro-l,2-disilacyclobut-3-en(e l ) , one of the products from the reaction between (CH3)3CC=CH and SiF2, is shown to undergo further cycloaddition to (CH3)3CC=CH in the presence of Ni(C0)4. The apparent function of Ni(C0)4 is to assist the cleavage of Si-Si bonds through d - d back K bonding to form chelate intermediates which react readily to form new cycloaddition products. These intermediates were isolated by reacting 1 directly with Ni(C0)d. An oxidative addition of the Si-Si bond to nickel resulted in the first well-characterized metal chelate with two silicon atoms bound to a metal atom. A reaction mechanism is proposed and is compared with those of other related catalytic systems.
    Relation Link: http://www.rsc.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81063
    Appears in Collections:[劉兆玄 (1987-1993)] 期刊論文
    [化學系] 期刊論文

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