Performic Acid–Sulfuric Acid System as a Key Reagent for the Synthesis of Allobetulone A-seco-derivatives
摘要
Abstract
The performic acid–sulfuric acid system in methylene chloride was proposed as a key reagent for the synthesis of a number of A-seco-derivatives of allobetulone. As a result, from the same substrate (allobetulone) and reagent (formic acid in methylene chloride), depending on different amounts and method of adding sulfuric acid, 4 differently functionalized derivatives of allobetulon (unsaturated acid, keto acid, formyloxy acid and diacid) were obtained.