A one step synthesis of functionlized N-acylanthranilamidevia Pd-catalyzed carboxamidation of o-halo substituted N-phenylamide consisting of isocyanideinsertion followed by oxidation of the imine intermediate has been achived successfully. Furthermore, at elevated temprature (160oC) the Pd-catalyzed tandem reaction afforded functionlized quinazolin-4-one in a single step without the isolation of
Microwave-assisted one-pot synthesis of 2,3-disubstituted 3H-quinazolin-4-ones
作者:Ji-Feng Liu、Jaekyoo Lee、Audra M. Dalton、Grace Bi、Libing Yu、Carmen M. Baldino、Eric McElory、Matt Brown
DOI:10.1016/j.tetlet.2005.01.008
日期:2005.2
A practical synthesis of 2,3-disubstituted 3H-quinazolin-4-ones 1 with broad chemistry scope is described. The key step is the microwave promoted one-pot, two-step reaction sequence combining anthranilic acids, carboxylic acids, and amines providing efficient access to this important class of heterocycles. (C) 2005 Elsevier Ltd. All rights reserved.
Comparative Catalytic Activity of Group 9 [Cp*M<sup>III</sup>] Complexes: Cobalt-Catalyzed CH Amidation of Arenes with Dioxazolones as Amidating Reagents
作者:Juhyeon Park、Sukbok Chang
DOI:10.1002/anie.201505820
日期:2015.11.16
A procedure for the [Cp*CoIII]‐catalyzed direct CHamidation of arenes with dioxazolone has been developed. This reaction proceeds under straightforward and mild conditions with a broad range of substrates, including anilides. A comparative study on the catalytic activity of Group 9 [Cp*MCl2}2] complexes revealed the unique efficiency of the cobalt catalyst.
已经开发了用[Cp * Co III ]催化的芳烃与二恶唑酮直接CH酰胺化的方法。该反应在简单,温和的条件下与各种底物(包括酸酐)一起进行。对第9组[Cp * MCl 2 } 2 ]配合物的催化活性的比较研究表明,钴催化剂具有独特的效率。