A Practical Synthesis of 1,4,5,8-Tetramethoxyanthracene from Inexpensive and Readily Available 1,8-Dihydroxyanthraquinone
作者:Rajendra Rathore、Tushar Navale
DOI:10.1055/s-0031-1289695
日期:2012.3
The preparation of gram quantities of 1,4,5,8-tetramethoxyanthracene from commercially available and inexpensive 1,8-dihydroxyanthraquinone is described. The key steps in the synthesis involve bromination of 1,8-dimethoxyanthracene to form 1,8-dibromo-4,5-dimethoxyanthracene followed by Cu(I) catalyzed replacement of bromo substituents with methoxy groups. The contrasting reports concerning the preparation
描述了由市售和廉价的1,8-二羟基蒽醌制备克量的1,4,5,8-四甲氧基蒽。合成中的关键步骤包括将1,8-二甲氧基蒽溴化以形成1,8-二溴-4,5-二甲氧基蒽,然后用Cu(I)催化用甲氧基取代溴取代基。还讨论了关于使用锌粉在回流乙酸中由1,8-二甲氧基蒽醌制备1,8-二甲氧基蒽的报道。 蒽醌-多环芳烃-溴化铜(I)-溴化-锌