A highly regioselective C–H benzoxylation of tertiary benzamides with aromatic acids by weak O-amide coordination in the presence of [{RuCl₂(p-cymene)}₂], AgSbF₆, and (NH₄)₂S₂O₈ in 1,2-dichloroethane at 100 °C for 24 h to afford ortho-benzoxylated tertiary benzamides is described. Selectively, ortho-benzoxylated cyclic benzamides were converted into ortho-benzoxylated benzaldehydes by using Cp₂ZrHCl at room temperature. Subsequently, substituted salicylic acids were prepared by deprotection of the ester and amide groups of ortho-benzoxylated cyclic benzamides.

中文翻译：

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弱配位的钌催化叔丁基酰胺与芳香酸的CH-H苄氧基化

在[{RuCl ₂（p- Cymene）} ₂ ]，AgSbF ₆和（NH ₄）₂ S ₂ O ₈存在的情况下，通过弱O-酰胺配位，高芳烃选择性地将叔苯甲酰胺与芳族酸进行C-H苯甲氧基化。描述了在100℃下1，2-二氯乙烷24小时以提供邻-苯甲酰化的叔苯甲酰胺。通过使用Cp ₂选择性地将邻苯甲酰化的环状苯甲酰胺转化为邻苯甲酰化的苯甲醛ZrHCl在室温下。随后，通过使邻-苯甲酰化的环状苯甲酰胺的酯和酰胺基脱保护来制备取代的水杨酸。