Alcohols react with arenes in the presence of cationic iron(III) porphyrin catalyst. The reaction involves the formation of the C–C bond via dehydration, which is formal Lewis acid catalyzed Friedel–Craftsreaction.
作者:Darapaneni Chandra Mohan、Rajendra D. Patil、Subbarayappa Adimurthy
DOI:10.1002/ejoc.201200283
日期:2012.6
The hydroarylation of styrenes with various arene(heteroarene) compounds using H-β-zeolite as a green and recyclable heterogeneous catalyst under mild reaction conditions has been developed. The catalyst showed versatility and high selectivity (up to 100 %) of desired 1,1-diarylalkanes in cyclohexane as solvent under the conditions studied. The catalyst could be reactivated by simple treatment with
Silver catalyzed substitution of allylic and benzylic alcohols having unactivated hydroxy groups
作者:Hossein Barzegar、Clayton P. Donald、Andrew Isho、Po-Kai Peng、Jeremy A. May
DOI:10.1016/j.tetlet.2023.154572
日期:2023.7
The catalytic Friedel-Crafts substitution of allylic and benzylic alcohols having free hydroxygroups was regioselectively catalyzed by cationic Ag(I) salts. No precautions to exclude moisture or atmosphere were necessary, making the reaction highly robust and facile. Substitution of allylic alcohols with electron rich aromatic nucleophiles favored products with alkenes conjugated to aromatic substituents
Mo-catalyzed Friedel-Crafts alkylation using alkenes under mild condition
作者:Nobukazu Taniguchi、Kenji Kitayama
DOI:10.1016/j.tetlet.2023.154729
日期:2023.10
Mo-catalyzed hydroarylation of alkenes can be achieved at roomtemperature. The procedure can perform by using electron rich arenes, and the corresponding product is obtained regioselectively as a mixture of para- and ortho-isomers in good yield. Both aryl alkenes and aliphatic alkenes are available in the procedure. On the other hand, a reaction of allylic acetates gives the corresponding allyl arenes