作者:R. A. Muzychkina、L. N. Pribytkova
DOI:10.1007/bf00601278
日期:1990.9
it has been shown that in the bromination of hydroxyanthraquinones the qualitative composition and quantitative ratio of the reaction products depend on the nature of the brominating agent and the solvent, the ratio of the rea Lants, and the temperature regime. In order to obtain bromo-3-methyl-1,6,8-trihydroxyanthraquinone it is recommended to use dioxane dibromide in acid solution as the brominating
以大黄素为例,已经表明在羟基蒽醌的溴化反应中,反应产物的定性组成和定量比取决于溴化剂和溶剂的性质、反应物的比例和温度范围。为了得到溴-3-甲基-1,6,8-三羟基蒽醌,建议使用二溴二恶烷在酸溶液中作为溴化剂,得到5-溴-3-甲基-1,6,8-三羟基蒽醌二恶烷溶液中的相同试剂。选择了引发溴化法和光溴化法制备3-溴甲基-1,6,8-三羟基蒽醌的最佳条件。