摘要
In this paper, a new “green” route to the synthesis of adipic acid is reported. This environmentally benign synthesis of adipic acid involves in the direct oxidation of cyclohexene catalyzed by Na2WO4·2H2O with 27 5% aqueous hydrogen peroxide using alkyl ammonium sulfate as a phase transfer agent. The results show that N,N-dimethyl-dodecylammonium sulfate, dodecylammonium sulfate and tri-n-octylammonium sulfate can be used as efficient phase transfer agents for this reaction under refluxing temperature. After the reaction is stopped, the homogeneous solution was cooled to 0 ℃ for 12 h. Then the crystalline product was collected by filtration and dried in air, a colorless, analytically pure product adipic acid was obtained in 52.1%—94.1% yields. The catalyst in concentrated filtrate can be reused.
In this paper, a new “green” route to the synthesis of adipic acid is reported. This environmentally benign synthesis of adipic acid involves in the direct oxidation of cyclohexene catalyzed by Na_2WO_4·2H_2O with 27 5% aqueous hydrogen peroxide using alkyl ammonium sulfate as a phase transfer agent. The results show that N,N-dimethyl-dodecylammonium sulfate, dodecylammonium sulfate and tri-n-octylammonium sulfate can be used as efficient phase transfer agents for this reaction under refluxing temperature. After the reaction is stopped, the homogeneous solution was cooled to 0 ℃ for 12 h. Then the crystalline product was collected by filtration and dried in air, a colorless, analytically pure product adipic acid was obtained in 52.1%—94.1% yields. The catalyst in concentrated filtrate can be reused.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第7期1121-1123,共3页
Chemical Journal of Chinese Universities
基金
辽宁省自然科学基金! (批准号 9810 30 130 2 )资助
关键词
己二酸
环己烯
催化氧化
相转移剂
纤维原料
Adipic acid
Cyclohexene
Catalytic oxidation
Phase transfer agent
