摘要
文章以浓硝酸/浓硫酸作为硝化剂,对丹皮酚的硝化反应进行研究。在丹皮酚与硝酸的摩尔比为1∶1、1∶3的情况下,分别合成了丹皮酚的单硝基取代、二硝基取代产物,其中单硝基取代产物经过硅胶柱层析分离得到5-硝基丹皮酚、3-硝基丹皮酚单一产物。所得产物经FTIR、1H-NMR、MS测试确认结构,收率分别为58.1%、29.3%和90.0%。文章在成功合成了3种硝化产物的基础上,对硝基引入产生的理化性质变化进行了阐述。
The nitration of paeonol（2 hydroxyl-4-methoxyacetophenone）is studied by using concentrated nitric acid as the nitrating agent in the presence of concentrated sulfuric acid. Under the condition of reacting with equal quantity of HNO3, only mono nitrated derivatives formed. After separating and purifying silica gel column, 5-nitro and 3 nitro derivative of paeonol were obtained with the yield of 58. 1% and 29.3% respectively. When changing the mole ratio to 1 ： 3, the single 3,5 dinitro substituted product was obtained with the yield of 90.0%. The three kinds of structures were characterized by means of IR,^1H NMR, and MS. The change of physicochemical properties caused by the nitro group was discussed on the basis of the synthesis of the three kinds of nitrated products.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第2期177-180,共4页
Journal of Hefei University of Technology：Natural Science
关键词
丹皮酚
硝化
二硝化
分子内氢键
paeonol
nitration
dinitration
intramolecular hydrogen bond
