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
Upon heating, dichlorodimethylenecyclobutanes (1, 2, 18) undergo rearrangements that yield benzene derivatives including styrene adducts. Preparation of postulated intermediates (10, 23) and study of their pyrolytic behaviour allow to unambiguously establish the mechanism of formation of the styrene derivatives.