A modified Mannich reaction has been developed for the synthesis of Mannich bases and benzoxazines via the oxidative hydroxylation of arylboronic acids and subsequent coupling with paraformaldehyde and amines in one pot. This modified Mannich reaction is easily carried out to afford the target products in good to excellent yields and tolerates a variety of functional groups.

中文翻译：

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改进的曼尼希反应：芳基硼酸的转化，然后与低聚甲醛和胺偶联，实现曼尼希碱和苯并恶嗪的一锅法合成

已开发出一种改良的曼尼希反应，用于通过芳基硼酸的氧化羟基化反应，随后在一个罐中与多聚甲醛和胺偶联来合成曼尼希碱和苯并恶嗪。容易进行这种修饰的曼尼希反应，以高至优异的产率提供目标产物，并能耐受多种官能团。