A novel convenient acid-catalyzed acylation of enaminodiones with acylbenzotriazoles via soft enolization has been developed for the direct synthesis of hard-to-reach 5-acyl-3-oxy-4-pyrones. The important advantages of the reaction include broad substrate scope, mild conditions, scalability, and readily isolation of products by crystallization without the use of chromatography. Further modification
已开发了一种通过软烯酰化与酰基苯并三唑进行的新型方便的酸催化的
氨基二酮与酰基苯并三唑的酰化反应,用于直接合成难以达到的5-酰基-3-氧基-4-
吡喃酮。该反应的重要优点包括广泛的底物范围,温和的条件,可扩展性,以及不使用色谱法通过结晶容易分离产物。已经证明了对
吡喃环的进一步修饰和通过开环转化合成各种氮杂杂环,以用于制备抑制
金属酶的潜在支架。