Selective Metal-free HB(C₆F₅)₂ Catalyzed Allene Cyclotrimerization: Formation of 1,3,5-Trimethylenecyclohexane and Its Tris-hydroboration Product

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• 作者：Dr. Xin Tao ; Dr. Gerald Kehr ; Dr. Constantin G. Daniliuc and Prof. Gerhard Erker
• 刊名：Angewandte Chemie International Edition
• 出版年：2017
• 出版时间：January 24, 2017
• 年：2017
• 卷：56
• 期：5
• 页码：1376-1380
• 全文大小：658K
• ISSN：1521-3773

文摘

Allene is cyclotrimerized under metal-free conditions with the borane HB(C₆F₅)₂ catalyst to selectively give 1,3,5-trimethylenecyclohexane (3 a). Three-fold hydroboration of the 1,3,5-cyclotrimer with Piers’ borane gives the all-cis 1,3,5-CH₂B(C₆F₅)₂ substituted cyclohexane product 14.