One-Pot Access to 4-Aryl-2-arylacetoxynaphthalenes via Benzannulation of Oxygenated Arylacetic Acids and Alkyl Aryl Ketones
作者:Meng-Yang Chang、Shin-Mei Chen、Yu-Ting Hsiao
DOI:10.1055/s-0039-1690799
日期:——
Trifluoroacetic anhydride mediated one-pot intermolecular formal (4+2) benzannulation of oxygenated arylacetic acids with alkylarylketones provides 4-aryl-2-arylacetoxynaphthalenes in moderate to good yields in the presence of H3PO4 in an open-vessel in a straightforward procedure. A plausible mechanism is proposed and discussed. This protocol provides a highly effective ring-closure via two carbon–carbon
三氟乙酸酐介导的含氧芳基乙酸与烷基芳基酮的一锅间分子式(4 + 2)苯甲酸环合反应,在开放容器中在H 3 PO 4存在下,以中等至良好的产率提供了4-芳基-2-芳基乙酰氧基萘。简单明了的程序。提出并讨论了一种可行的机制。该协议通过两个碳-碳(CC)和一个碳-氧(C-O)键形成事件提供了一种高效的闭环方法。