Short-step synthesis of naproxen. Regioselective Friedel-Crafts reaction of 2-chloro-2-alkylthio-propionates
作者:Kazutaka Arai、Yoshio Chara、Toyoko Iizumi、Yasuo Takakuwa
DOI:10.1016/s0040-4039(00)81701-3
日期:——
2-(6-Methoxy-2-naphthyl)propionic acid (), dl-naproxen, was conveniently prepared by the regioselective reaction of alkyl 2-chloro-2-alkylthio-propionate () and 2-methoxynaphthalene () in good yield. This Friedel-Crafts reaction was found to be applicable to the other electron-rich aromatics.
通过2-氯-2-烷基硫代丙酸烷基酯()和2-甲氧基萘()的区域选择性反应可方便地制备2-(6-甲氧基-2-萘基)丙酸()dl-萘普生。发现该Friedel-Crafts反应适用于其他富含电子的芳族化合物。