A range of 2,3-dihydroquinazolin-4(1)-ones and their 1-substituted analogues have been selectively prepared mostly in moderate to excellent yields through Pd(II)-catalyzed one-pot annulation of -aminobenzoic acids with CO, ammonium acetate and aldehydes. This protocol features with simple raw materials and operation, low catalyst loading and cost, high step economy & efficiency, good product diversity and broad applicability.

中文翻译：

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通过 Pd(II) 催化邻氨基苯甲酸与 CO、乙酸铵和醛的级联环化选择性合成 2,3-二氢喹唑啉-4(1H)-酮及其 N1 取代类似物

通过 Pd(II) 催化 β-氨基苯甲酸与 CO、铵的一锅成环反应，选择性地制备了一系列 2,3-二氢喹唑啉-4(1)-酮及其 1-取代类似物，大部分产率中等至优异乙酸酯和醛类。该方案原料和操作简单，催化剂用量和成本低，步骤经济性和效率高，产品多样性好，适用性广泛。