A practical and effective copper-catalyzed dehydrogenative Diels–Alder reaction of gem-diesters and ketone with dienes has been established. The active dienophiles were generated in situ via a radical-based dehydrogenation process, which reacted with a wide variety of dienes to afford various polysubstituted cyclohexene derivatives in good to excellent yields.

中文翻译：

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铜催化的脱氢狄尔斯-阿尔德反应

的实用而有效的铜催化脱氢Diels-Alder反应宝石-diesters和与二烯烃酮已经建立。通过基于自由基的脱氢过程原位产生活性二烯亲和体，其与多种二烯反应，以良好或优异的收率得到各种多取代的环己烯衍生物。