1,4-Benzoxazin-3-one is a scaffold which is found in a variety of biologically active molecules. Because of its unique structure and drug-like activities, 1,4-benzoxazin-3-ones have been widely used in drug discovery. However, just a few methods have been developed to access these molecules by catalytic asymmetric synthesis. We report herein the phase-transfer-catalysed asymmetric alkylation of 2-aryl-1,4-benzoxazin-3-ones as a new way for the highly enantioselective synthesis of 2,2-disubstituted 1,4-benzoxazin-3-ones.

中文翻译：

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相转移催化的2,2-二取代的1,4-苯并恶嗪-3-酮的不对称合成†

1,4-Benzoxazin-3-one是一种存在于多种生物活性分子中的支架。由于其独特的结构和类药物活性，1,4-苯并恶嗪-3-酮已被广泛用于药物发现中。然而，仅开发了几种通过催化不对称合成来接近这些分子的方法。我们在此报告了2-芳基-1,4-苯并恶嗪-3-酮的相转移催化不对称烷基化作为2,2-二取代的1,4-苯并恶嗪-3-酮的高对映选择性合成的新方法。