Perfluorooctanesulfonic Acid Catalyzed Friedel-Crafts Alkylation with Alkyl Halides
作者:Xiangkai Fu、Mingqian He、Qingying Lei、Bikuei Luo
DOI:10.1080/00397919108021046
日期:1991.5
POSA catalyzed Friedel-Craftsalkylation of aromatic compounds with alkyl halides in liquid-phase reactions. Alkylation gave higher total yields than the corresponding reactions with Nafion-H, without the need of any complex decomposition or work-up. The reactions do not need to be carried out under absolutely anhydrous condition. The catalyst POSA can be easily separated from the reaction mixture and
Preparation of 5-tert-butyl-metaxylene using a solid active clay catalyst
申请人:——
公开号:US20040152934A1
公开(公告)日:2004-08-05
Alkylation of metaxylene with isobutylene using a solid active clay catalyst produces 5-tert-butyl-metaxylene with high isomer selectivity with respect to 4-tert-butyl-metaxylene. The process is controlled to extend catalyst life and significantly reduce environmentally unfriendly waste.