A new synthesis of substituted 2-hydroxy-1-naphthoic acid esters  and amides 4 by oxidation of 5-aryl-3-oxopentanoic acid esters  or amides 1 with manganese(III) acetate or cerium(IV) ammonium  nitrate has been developed, based on the intramolecular homolytic  substitution by α-dicarbonylalkyl radicals generated from  high-valent metal β-dicarbonyl complexes.
                                    通过用
醋酸锰(III)或
硝酸铈(IV)
铵氧化 5-芳基-
3-氧代戊酸酯或酰胺 1,开发了一种取代的 2-羟基-1-
萘酸酯和酰胺 4 的新合成方法,其基础是由高价
金属δ-²-二羰基络合物产生的δ-二羰基烷基自由基进行分子内均聚取代。