A straightforward and general method has been developed for the synthesis of phthalimide derivatives from 2-iodobenzamides and PPh3/I2/HCOOH in the presence of a catalytic amount of Pd(OAc)2. The reaction results demonstrate that PPh3/I2/HCOOH is a facile, efficient and safe CO source. The whole process is carried out in toluene at 80 °C and furnishes the desired products in good to excellent yields
已经开发了一种简单且通用的方法,用于在催化量的Pd(OAc)2存在下由2-碘联苯甲酰胺和PPh 3 / I 2 / HCOOH合成邻苯二甲酰亚胺衍生物。反应结果表明,PPh 3 / I 2 / HCOOH是一种简便,高效,安全的CO源。整个过程在80°C的甲苯中进行,并以优异的产率提供了所需的产品。
Ru-Catalyzed Selective C–H Bond Hydroxylation of Cyclic Imides
We report on cyclicimides as weak directing groups for selective monohydroxylation reactions using ruthenium catalysis. Whereas acyclic amides are known to promote the hydroxylation of the C(sp2)–H bond enabling five-membered ring ruthenacycle intermediates, the cyclicimides studied herein enabled the hydroxylation of the C(sp2)–H bond via larger six-membered ruthenacycle intermediates. Furthermore
Comparison of Copper(II) Acetate Promoted N-Arylation of 5,5-Dimethyl Hydantoin and Other Imides with Triarylbismuthanes and Aryl Boronic Acids
作者:Helmut Hügel、Colin Rix、Karin Fleck
DOI:10.1055/s-2006-949638
日期:2006.9
This work demonstrates that the copper acetate promoted N-arylation of imides with boronic acids can be employed as a major method for the synthesis of N3-aryl hydantoins.
这项工作表明,使用乙酸铜促进的亚胺与硼酸的N-芳基化反应可以作为合成N3-芳基海因的主要方法。
An Efficient Protocol for the Synthesis of<i>N</i>-Alkyl- and<i>N</i>-Arylimides Using the Lewis Acidic Ionic Liquid Choline Chloride·2ZnCl<sub>2</sub>
Lewis acidic ionic liquid choline chloride·2ZnCl2 is shown to be for the first time an excellent medium and efficient catalyst for the synthesis of N‐alkyl‐ and N‐arylimides in good yields under mild conditions.
作者:Souradeep Basu、Alexander H Sandtorv、David R Stuart
DOI:10.3762/bjoc.14.90
日期:——
Herein, we describe the synthesis of N-aryl phthalimides by metal-free coupling of potassium phthalimide with unsymmetrical aryl(TMP)iodonium tosylate salts. The aryl transfer from the iodonium moiety occurs under electronic control with the electron-rich trimethoxyphenyl group acting as a competent dummy ligand. The yields of N-aryl phthalimides are moderate to high and the coupling reaction is compatible