油化学
Online ISSN : 1884-2003
ISSN-L : 0513-398X
イソプレンの環状オリゴメリゼーション
渡辺 昭次須賀 恭一藤田 力高坂 信夫
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1974 年 23 巻 1 号 p. 24-27

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Oligomerisation of isoprene catalysed by nickel naphthenate and isoprene magnesium was studied under various conditions. The use of various phosphites as donors gives cyclic dimers containing dimethylcyclooctadiene (about 80%); in particular 1, 1, 1-trishydroxymethyipropane phosphite gives trimethylcyclododecatriene selectively. At 500°C and under atmospheric pressure, 1, 5-dimethyl-1-cyclooctene thermally isomerized to 2, 6-dimethyl-1, 7-octadiene. Trimethylcyclododecanone having weak musk-like odour was prepared from trimethyl-1, 5, 9-cyclododecatriene.

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