A gold(I)‐catalyzed asymmetric intermolecular tandem [3+3]‐cyclization reaction of 2‐(1‐alkynyl)‐2‐ alken‐1‐ones with nitrones has been developed by using Ming‐Phos as a chiral ligand. This method enables access to the stereodivergent synthesis of highly substituted furo[3,4‐d][1,2]oxazines in excellent efficiency and stereoselectivity (up to 99% yield, 99% ee, >20 : 1 dr).

中文翻译：

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Ming-Phos / Gold（I）催化的高取代呋喃[3,4- [d] [1,2]恶嗪的立体发散合成†

通过使用Ming-Phos作为手性配体开发了金（I）催化的2-（1-炔基）-2-链烯-1-酮与硝酮的不对称分子间串联[3 + 3]环化反应。该方法能够以优异的效率和立体选择性（高达99％的收率，99％ee，> 20：1 dr）获得高度取代的呋喃[3,4- d ] [1,2]恶嗪的立体发散性合成。