Catalytic Access to Alkyl Bromides, Chlorides and Iodides via Visible Light-Promoted Decarboxylative Halogenation
作者:Lisa Candish、Eric A. Standley、Adrián Gómez-Suárez、Satobhisha Mukherjee、Frank Glorius
DOI:10.1002/chem.201602251
日期:2016.7.11
Herein is reported the catalytic, visible light‐promoted, decarboxylative halogenation (bromination, chlorination, and iodination) of aliphatic carboxylic acids. This operationally‐simple reaction tolerates a range of functional groups, proceeds at room temperature, and is redox neutral. By employing an iridium photocatalyst in concert with a halogen atom source, the use of stoichiometric metals such
本文报道了脂肪族羧酸的催化,可见光促进的脱羧卤化(溴化,氯化和碘化)。该操作简单的反应可耐受一定范围的官能团,可在室温下进行,并且是氧化还原中性的。通过与铱原子源一起使用铱光催化剂,可以避免使用化学计量的金属,例如银,汞,th和铅。该反应使人们能够从大量廉价的,容易获得的羧酸中获得有价值的合成构件。