conditions. Both aryl and alkyl ketones could perform smoothly to give vinyl phosphonates in high to excellent yields. In addition, the reaction was easy to carry out and easy to scale up. Mechanistic studies suggested that this transformation might involve nucleophilic vinylic substitution or a nucleophilic addition–elimination mechanism.
公开了一种有效促进酮
磷酸化的
三氟甲磺酸酐,并在无溶剂和无
金属条件下制备了
乙烯基磷化合物。芳基酮和烷基酮都可以顺利地以高收率得到
膦酸乙烯酯。此外,该反应易于进行且易于放大。机理研究表明,这种转化可能涉及亲核
乙烯基取代或亲核加成-消除机制。