2741-55-1Relevant articles and documents
2-Carbomethoxy-3-hydroxyquinoxaline-di-N-oxide as a novel ligand for the copper-catalyzed coupling reaction of phenols and aryl halides
Qiu, Yatao,Jia, Weijun,Yao, Zhiyi,Wu, Fanhong,Jiang, Sheng
, p. 1502 - 1510 (2013/05/08)
2-Carbomethoxy-3-hydroxyquinoxaline-di-N-oxide was identified as an efficient novel ligand for the copper-catalyzed coupling of aryl halides with various phenols under mild conditions. The catalytic system shows great functional-group tolerance and excellent reactive selectivity.
Synthesis of 3,4,4′- and 2′,3,4-triaminodiphenyl ethers
Pilyugin,Mikhailyuk,Kiseleva,Kuznetsova,Chikisheva,Kosareva
, p. 1105 - 1109 (2007/10/03)
Procedures were developed for preparing 3,4,4′- and 2′,3,4-triaminodiphenyl ethers by the reaction of 4-acetylaminophenol with, respectively, 4-nitro- or 2-nitrochlorobenzene, followed by nitration of the resulting 4-acetylamino-4′- or -2′-nitrodiphenyl ether, hydrolysis of the product, 4-acetylamino-3,4′- or -2′,3- dinitrodiphenyl ether, and reduction of 4-amino-3,4′- or -2′-3-dinitrodiphenyl ether.
