Methods and materials for preparing 4-substituted-2-buten-4-olides are disclosed. The method includes reacting a mucohalic acid with a silyl enol ether or a ketene silyl acetal in the presence of a Lewis acid.
披露了制备4-取代-
2-丁烯-4-内酯的方法和材料。该方法包括将一个粘酸与一个
硅基烯醇醚或一个
硅基酮
缩酮在
路易斯酸的存在的条件下进行反应。