Palladium-Catalyzed 1,2-Addition of Organic Halides and Terminal Alkynes to 7-Oxabenzonorbornadiene: An Efficient Route to Polyaromatic Hydrocarbons
作者:Chun-Jung Kuo、Shu-Jin Cheng、Shu-Ting Chang、Charng-Hsing Liu
DOI:10.1002/ejoc.200700772
日期:2008.1
coupling reaction of organic halides with oxabicyclic alkenes and terminal alkynes was catalyzed by a palladium complex and a phase-transfer agent in the presence of aqueous NaOH. The reaction gave a series of 5,6-disubstituated 7-oxabenzonorbornene derivatives in good yields. The disubstituted products from oxabenzonorbornadiene can be readily converted into polyaromatic hydrocarbons by a Lewis acid mediated
在氢氧化钠水溶液存在下,钯配合物和相转移剂催化有机卤化物与氧杂双环烯烃和末端炔烃的三组分偶联反应。该反应以良好的产率得到一系列 5,6-二取代的 7-氧杂苯并降冰片烯衍生物。来自氧杂苯并降冰片二烯的二取代产物可以通过路易斯酸介导的脱氧芳构化反应容易地转化为多芳烃。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)