A process for producing an alkylcyclopentanone derivative of formula (1) or (5) which comprises reacting a cyclopentanone derivative of formula (2) or (4) and an alkyl halide of formula (3) or (6) in an organic solvent in the presence of a molecular sieve and an alkaline metal hydroxide:
R3X (3)
RkX (6)
wherein R1 is a C1-C4 alkyl group; R2 is a hydrogen atom or a C1-C5 alkyl group; R3 is a C1-C5 alkyl group; R4 is a hydrogen atom or a C1-C5 alkyl group; R5 is a C1-C5 alkyl group; Rk is as defined for R4 and R5; Y is a halogen atom or a C1-C5 alkyl, C1-C5 haloalkyl, phenyl, cyano or nitro group; and n is an integer of 0 to 5 wherein when n is 2 or more each Y may be identical or different.
一种生产式(1)或(5)的烷基
环戊酮衍
生物的工艺,包括在
分子筛和碱
金属
氢氧化物存在下,使式(2)或(4)的
环戊酮衍
生物和式(3)或(6)的烷基卤化物在有机溶剂中反应:
R3X (3)
RkX (6)
其中 R1 是 C1-C4 烷基;R2 是
氢原子或 C1-C5 烷基;R3 是 C1-C5 烷基;R4 是
氢原子或 C1-C5 烷基;R5 是 C1-C5 烷基;Rk 如 R4 和 R5 所定义;Y 是卤素原子或 C1-C5 烷基、C1-C5 卤代烷基、
苯基、
氰基或硝基;以及 n 是 0 至 5 的整数,其中当 n 为 2 或更多时,每个 Y 可以相同或不同。