In all cases, a clear solution of dilithium tert -butyl acetoacetate in THF was obtained, which led after treatment with aldehyde 4 in most cases to good to excellent yield of 3 .

• 在任何情况下；明确解决锂叔丁醋酸在获得四氢呋喃、导致治疗后；在大多数情况醛4优良率3.