Process for the preparation of .alpha.-alkyl lactones by the steps of first reacting an .alpha.-acyl lactone, an aldehyde, and an alkali metal hydroxide together to form an .alpha.-alkylidene lactone, and then hydrogenating the .alpha.-alkylidene lactone.
制备.alpha.-烷基内酯的过程包括以下步骤:首先将.alpha.-酰基内酯、醛和碱
金属氢氧化物一起反应,形成.alpha.-烷基亚
甲基内酯,然后对.alpha.-烷基亚
甲基内酯进行加氢。