2009年5月
Cyanoesterification of 1,2-Dienes Catalyzed by Nickel
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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- 巻
- 131
- 号
- 18
- 開始ページ
- 6624
- 終了ページ
- 6631
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ja9010282
- 出版者・発行元
- AMER CHEMICAL SOC
Cyanoformate esters add across 1,2-dienes in the presence of a nickel/PMe2Ph catalyst to afford beta-cyano-alpha-methylenealkanoates regioselectively, which are kinetically favored and readily isomerize to thermodynamically favored alpha-cyanomethyl-alpha,beta-unsaturated carboxylates at high temperature under the nickel catalysis, possibly through oxidative addition of the C-CN bond. Similar cyanoesterification products are produced from chloroformate esters, trimethylsilyl cyanide, and 1,2-dienes in the presence of a nickel/dppp catalyst. The resulting cyanoesterification products have a structure of allylic cyanide and thus undergo further allyl cyanation reaction across alkynes with the aid of a nickel/P(4-CF3-C6H4)(3) catalyst to afford highly substituted acrylonitrile derivatives.
- リンク情報
- ID情報
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- DOI : 10.1021/ja9010282
- ISSN : 0002-7863
- Web of Science ID : WOS:000265939200066