Contra-Friedel–Crafts tert-butylation of substituted aromatic rings via directed metallation and sulfinylation
作者:Jonathan Clayden、Christopher C. Stimson、Martine Keenan
DOI:10.1039/b600181e
日期:——
Directed metallation and sulfinylation yields sulfoxides which undergo ipso nucleophilic aromatic substitution with tertiary and secondary alkyllithiums, giving aromatic rings bearing alkyl groups generally incompatible with directed metallation methods and with regioselectivity complementary with classical FriedelâCrafts substitution.
定向金属化和亚磺酰化反应产生亚磺酰化物,这些化合物与三级和二级烷基锂发生ipso亲核芳香取代反应,生成的芳香环具有一般与定向金属化方法不兼容的烷基基团,并且其区域选择性与经典的弗里德尔-克拉夫茨取代反应互补。