This invention relates to an improved process for the preparation of 3-acyl-5-alkyldihydro-2(3H)-furanones according to the following reaction scheme:
wherein R and R1 are hydrogen or alkyl and R2 is a hydrocarbon or -0-hydrocarbon radical of from 1 to 20 carbon atoms and X is a leaving group.
这项发明涉及一种改进的制备3-酰基-5-烷基二氢-2(3H)-
呋喃酮的过程,根据以下反应方案进行:其中R和R1为氢或烷基,R2为含有1至20个碳原子的烃或-0-烃基,X为离去基团。