[EN] BORON-CONTAINING COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE CONTAINING SAME<br/>[FR] COMPOSÉ CONTENANT DU BORE ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LE CONTENANT<br/>[ZH] 一种含硼类化合物及含有其的有机电致发光器件
H<sub>2</sub>O ⋅ B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>‐Catalyzed <i>para</i>‐Alkylation of Anilines with Alkenes Applied to Late‐Stage Functionalization of Non‐Steroidal Anti‐Inflammatory Drugs
作者:Laura Winfrey、Lei Yun、Ginevra Passeri、Kogularamanan Suntharalingam、Alexander P. Pulis
DOI:10.1002/chem.202303130
日期:2024.3
Abstract
Anilines are core motifs in a variety of important molecules including medicines, materials and agrochemicals. We report a straightforward procedure that allows access to new chemical space of anilines via their para‐C−H alkylation. The method utilizes commercially available catalytic H2O ⋅ B(C6F5)3 and is highly selective for para‐C‐alkylation (over N‐alkylation and ortho‐C‐alkylation) of anilines, with a wide scope in both the aniline substrates and alkene coupling partners. Readily available alkenes are used, and include new classes of alkene for the first time. The mild reaction conditions have allowed the procedure to be applied to the late‐stage‐functionalization of non‐steroidal anti‐inflammatory drugs (NSAIDs), including fenamic acids and diclofenac. The formed novel NSAID derivatives display improved anti‐inflammatory properties over the parent NSAID structure.