A process for producing an aniline derivative represented by general formula (3) by reacting a halogenated aminophenol derivative represented by general formula (1) or a carbonate derivative thereof with an alkylating agent of the formula (R-Y) in the presence of a phase-transfer catalyst in a bilayered system composed of an aqueous solution of an alkali metal hydroxide and an organic solvent, wherein R represents (substituted) C₃-C₁₂ cycloalkyl or C₃-C₆ alkynyl; or a process for producing an aniline derivative represented by general formula (3) by reacting an aminophenol derivative represented by general formula (1) with an alkylating agent in the presence of an alkali metal carbonate in an organic solvent. The process enables an intermediate for producing an oxazolidinedione derivative useful as the active ingredient of a herbicide to be efficiently produced without the necessity for protecting the amino group.
一种生产通式(3)代表的
苯胺衍
生物的工艺,其方法是在碱
金属氢氧化物
水溶液和有机溶剂组成的双层体系中,在相转移催化剂存在下,使通式(1)代表的卤代
氨基苯酚衍
生物或其
碳酸盐衍
生物与式(R-Y)的烷化剂反应、其中 R 代表(取代的)C₃-C₁₂ 环烷基或 C₃-C₆ 烷基;或通式(3)代表的
苯胺衍
生物的生产工艺,其方法是在有机溶剂中,在碱
金属
碳酸盐存在下,使通式(1)代表的
氨基苯酚衍
生物与烷化剂反应。该工艺可以有效地生产出一种用于生产可用作
除草剂活性成分的
噁唑烷二酮衍
生物的中间体,而无需保护
氨基。