Vicinal Dichlorination of o-Vinylbiphenyls and the Synthesis of 9-(Arylmethyl)fluorenes via Tandem Friedel–Crafts Alkylations
作者:Zhensheng Zhao、Islam Jameel、Graham K. Murphy
DOI:10.1055/s-0037-1611562
日期:2019.7
room temperature. Treating the vic-dichlorides with 50 mol% AlCl3 in the presence of arene nucleophiles results in sequential intramolecular and intermolecular Friedel–Crafts alkylations to generate 9-(arylmethyl)fluorene derivatives. The dichlorination and alkylation reactions are operationally simple and tolerant of a variety of functional groups and substitution patterns, and give the products in
抽象的 使邻乙烯基联苯与(二氯碘代)苯(PhICl 2)反应,可以迅速并在室温下以优异的收率得到邻二氯化物。在芳烃亲核试剂存在下用50 mol%AlCl 3处理vic- dichloride会导致分子内和分子间Friedel-Crafts烷基化顺序生成9-(芳基甲基)芴衍生物。二氯化和烷基化反应操作简单,可耐受多种官能团和取代方式,并能以中等至极好的收率得到产物。 使邻乙烯基联苯与(二氯碘代)苯(PhICl 2)反应,可以迅速并在室温下以优异的收率得到邻二氯化物。在芳烃亲核试剂存在下用50 mol%AlCl 3处理vic- dichloride会导致分子内和分子间Friedel-Crafts烷基化顺序生成9-(芳基甲基)芴衍生物。二氯化和烷基化反应操作简单,可耐受多种官能团和取代方式,并能以中等至极好的收率得到产物。