Synthesis of 2-Hydroxy-1-naphthoic Acid Derivatives by Oxidative Cyclization of Esters of 5-Aryl-3-oxopentanoic Acid by Mn(III) and Ce(IV) Salts
作者:Attilio Citterio、Luca Pesce、Roberto Sebastiano、Roberto Santi
DOI:10.1055/s-1990-26814
日期:——
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。