Aryl ketones substituted in ortho, meta, and para position are prepared by a palladium-catalyzed Sonogashira reaction followed by a regioselective hydration of the so-formed alkyne with triflimidic acid or a gold catalyst, under catalytic conditions. This methodology opens a way to obtain substituted aryl alkyl ketones from readily available starting materials, haloarenes, and terminal alkynes. The
通过
钯催化的Sonogashira反应,然后在催化条件下,用三
氟乙二酸或
金催化剂将形成的
炔烃进行区域选择性
水合,制得邻位,间位和对位取代的芳基酮。该方法学为从容易获得的起始原料,卤代
芳烃和末端
炔烃中获得取代的芳基烷基酮开辟了道路。介绍了
氟哌啶醇,美潘酮,哌帕酮和
布洛芬的不同区域异构体的合成。通过
多巴胺能和环氧合酶结合试验研究了这些化合物的结构活性关系。