Pd(OAc)<sub>2</sub>-Catalyzed Carbonylative Coupling of Aryl Iodide with Ortho-Haloamines in Water
作者:Pawan J. Tambade、Yogesh P. Patil、Ziyauddin S. Qureshi、Kishor P. Dhake、Bhalchandra M. Bhanage
DOI:10.1080/00397911.2010.523155
日期:2012.1.15
Abstract The carbonylative cross coupling of aryliodide with ortho-haloaniline to ortho-haloanilide usingphosphine-freePd(OAc)2 catalyst in water as a reaction medium has been studied. The present protocol facilitated the reaction of o-haloanilines with a wide variety of hindered and functionalized aryliodides, affording good yields of the desired products. The protocol was also extended for the
Copper-catalysed intramolecular O-arylation: a simple and efficient method for benzoxazole synthesis
作者:Fengtian Wu、Jie Zhang、Qianbing Wei、Ping Liu、Jianwei Xie、Haojie Jiang、Bin Dai
DOI:10.1039/c4ob02068e
日期:——
An efficient protocol has been developed for the copper-catalysed intramolecular cyclization of N-(2-iodo-/bromo-/chloro-phenyl)benzamides for the synthesis of 2-substituted benzoxazoles.
of benzoxazolesvia intramolecularcyclization of ortho -haloanilides using heteroge-neous copper fluorapatite catalyst is described. A variety of ortho -haloanilides (iodo-, bromo- and chloroanilides) were cyclized to thecorresponding benzoxazoles, demonstrating the versatility of thereaction. Key words: copper fluorapatite catalyst, ortho -haloanilides, in-tramolecular cyclization, heterogeneous catalyst
A phenanthridinone skeleton was derived from our previous researches on thalidomide and retinoids as a multi-template for generation of anti-viral lead compounds. Structural development studies focusing on anti-hepatitis C virus activity afforded 5-butyl-2-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenanthridin-6(5H)-one (10) and 5-butylbenzo[b] phenanthridin-6(5H)-one(39), which showed EC50 values of approximately 3.7 and 3.2 mu M, respectively. (C) 2010 Elsevier Ltd. All rights reserved.
Photocatalyst- and Transition-Metal-Free Visible-Light-Promoted Intramolecular C(sp<sup>2</sup>)–S Formation
作者:Hao Wang、Qi Wu、Jian-Dong Zhang、Hai-Yan Li、Hong-Xi Li