General method for the high yield preparation of 2-(4-X-phenylene) amine-1, 4-naphthoquinones (X= ferrocenyl, OMe, Me, I, Cl, and NO 2) from 2-methoxy-1, 4- …

…, M Lanznaster, JC Torres, CA Camara, AC Pinto

文献索引：Francisco, Acacio I.; Vargas, Maria D.; Carneiro, J. Walkimar de M.; Lanznaster, Mauricio; Torres, Jose C.; Camara, Celso A.; Pinto, Angelo C. Journal of Molecular Structure, 2008 , vol. 891, # 1-3 p. 228 - 232

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被引用次数: 18

摘要

A rapid and simple method for the high yield preparation of 2-(4-X-phenylene) amine-1, 4- naphthoquinones from 2-methoxy-1, 4-naphthoquinone, in boiling MeOH, using MgCl2 and p-toluenesulfonic acid as catalysts is described. This methodology has been applied successfully to the synthesis of electron donor (4-OMe, 4-Me, 4-ferrocenyl) and electron withdrawing (4-I, 4-Cl, 4-and 3-NO2) aniline derivatives. The effect of both H+ and Mg2+ ...