Facile access to 1,3-diketones by gold(<scp>i</scp>)-catalyzed regioselective hydration of ynones
作者:Jinqiang Kuang、Tao Zhou、Tingjie You、Jianhui Chen、Chenliang Su、Yuanzhi Xia
DOI:10.1039/c9ob00494g
日期:——
A facile and efficient synthesis of 1,3-diketones was developed by the gold(I)-catalyzed regioselective hydration of ynones at room temperature. This methodology employed 2.5 mol% of PPh3AuCl and 3 mol% of AgOTf as a simple catalytic system without any special phosphine ligand and was compatible with a wide range of substrates, giving rise to 1,3-diaryl, 1-alkyl-3-aryl-, and 1,3-dialkyl-1,3-diketones
室温下金(I)催化的炔酮区域选择性水合反应开发了一种简便高效的1,3-二酮合成方法。该方法采用2.5 mol%的PPh 3 AuCl和3 mol%的AgOTf作为简单的催化体系,没有任何特殊的膦配体,并且与多种底物兼容,产生了1,3-二芳基,1-烷基-3 -在开放烧瓶反应中,甲基芳基和1,3-二烷基-1,3-二酮的定量收率最高。这种方法可以很容易地放大到克级。