Khảo sát phản ứng alkyl hóa indole với benzaldehyde và các dẫn xuất bằng xúc tác chất lỏng ion gel 1-(4-sulfobutyl)-3- methylimidazolium hydrogene sulfate
Từ khóa:
ion gel, indole, alkyl hóa Friedel-Crafts, chiếu xạ siêu âm, bis(indolyl)methane
Tóm tắt
The alkylation of indole with benzaldehyde and derivatives catalyzed by 1-(4- sulfobutyl)-3-methylimidazolium hydrogene sulfate ion gel has been developed. The reaction was taken place under solvent-free ultrasonic irradiation afforded the corresponding product in high yield. Ion gel catalysis was formed by sol-gel method. The recovered ionic liquid gel in each reaction which is quite simply achieved by filtration could be reused up to 5 times without any detectable loss of catalytic performance.