The present invention provides a process for preparing 2-methyl-N-(2'-methylbutyl)butanamide of the following formula (1):the process comprising: subjecting an α-arylethyl-2-methylbutylamine compound of the following general formula (2): wherein Ar represents a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, to N-2-methylbutyrylation to form an N-α-arylethyl-2-methyl-N-(2'-methylbutyl)butanamide compound of the following general formula (3): wherein Ar is as defined above, and removing the α-arylethyl group of the resulting compound (3) to form 2-methyl-N-(2'-methylbutyl)butanamide (1).
本发明提供了一种制备下式(1)的2-甲基-N-(2'-甲基丁基)丁酰胺的工艺:该工艺包括:将下通式(2)的α-芳烯醇基-2-
甲基丁胺化合物:其中 Ar 代表具有 6 至 20 个碳原子的取代或未取代的芳基,将其进行 N-2-甲基丁酰化,形成下式通式(3)的 N-α-芳烯丙基-2-甲基-N-(2'-甲基丁基)丁酰胺化合物: 其中 Ar 如上定义,并除去所得化合物(3)中的α-芳烯丙基,形成 2-甲基-N-(2'-甲基丁基)丁酰胺(1)。