Friedel-Crafts alkylation of anisole and its comparison with toluene. Predominant ortho-para substitution under kinetic conditions and the effect of thermodynamic isomerizations
作者:George A. Olah、Judith A. Olah、Toshiyuki Ohyama
DOI:10.1021/ja00330a042
日期:1984.9
Alkylation, catalysee par AlCl 3 et BF 3 ainsi que par HPF 6 a 65%, de l'anisole par des halogenures d'alkyle et des alcanols
烷基化,催化剂 par AlCl 3 et BF 3 ainsi que par HPF 6 a 65%, de l'anisole par des haloures d'alkyle et des alcanols
Lithium tetrakis(pentafluorophenyl)borate [LiB(C6F5)4], a neutral salt, effectively catalyzed Friedel–Crafts benzylation reactions of aromatic compounds with benzyl chloride or mesylate and their substituted derivatives. The LiB(C6F5)4-catalyzed reactions proceeded more efficiently in the coexistence of magnesium oxide.
In the presence of gallium dichloride, the reaction of carbonyl compounds or their dimethylacetals with aromatic compounds afforded Friedel-Crafts alkylated adducts in good yields. It was suggested that the adducts were obtained by way of a reduction of the carbonyl compounds or their dimethylacetals, followed by the Friedel-Crafts reaction in one-pot. This is the first organic synthetic method with gallium dichloride, low valent gallium.
Khazaei, Ardeshir; Rad, Mohammad Navid Soltani; Borazjani, Maryam Kiani, South African Journal of Chemistry, 2011, vol. 64, p. 120 - 126
作者:Khazaei, Ardeshir、Rad, Mohammad Navid Soltani、Borazjani, Maryam Kiani、Moradian, Khadijeh Mansouri、Borazjani, Mohammad Kiani、Zebarjadian, Mohammad Hassan
DOI:——
日期:——
Environmentally Friendly Arylmethylation of Aromatics with Benzyl Halides Using Envirocat EPZ10® as the Catalyst
作者:Babasaheb P. Bandgar、Suhas P. Kasture
DOI:10.1007/s007060070069
日期:2000.8.22
The Friedel-Crafts arylmethylation of aromatics with benzyl halides or bis-(brumomethyl)-benzene ne in the presence of Envirocat EPZ10(R) affords selectively para-arylmethylated products in good yields. Isolation of purr products involving an eco-friendly procedure and recyclability of the catalyst are important Features of this method.