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查耳酮的制备Ⅰ
Preparation of Chalcons Ⅰ
【摘要】 目的:本文研究了五种查耳酮的制备方法,查耳酮是合成黄酮类化合物重要的中间体。方法:苯乙酮与苯甲醛在氢氧化钠催化下进行反应。结果:制备了1,3-二苯基-2-丙烯酮(5),1-苯基-3-(4-羟基苯基)-2-丙烯酮(6),1-(2,4-二羟基苯基)-3-苯基-2-丙烯酮(7),1-(2,4-二甲氧基苯基)-3-(4-二甲氨基苯基)-2-丙烯酮(8)和(1-2,4-二甲氧基苯基)-3-苯基-2-丙烯酮(9),并经MS,1HNMR,元素分析确定为所标化合物。结论:苯环上羟基对制备查耳酮有重大影响。
【Abstract】 Obj~ective: Preparation of five chalcons are studied in this paper. Chalcon is an important intermediate to synthesize flavons. Methods: In catalyzing of sodium hydrate, acetophenone reacts with benzaldehyde. Results: 1. 3 -diphenyl- 2 -propen -1- one(5), 1-phenyl -3 -(4 -hydroxyphenyl) - 2- propen -1 - one(6), 1- (2,4 - dihydriyphenyl)- 3 -phenyl -2 - propen-1- one(7), 1- (2,4 - dimethoxyphenyl) - 3 - (4- dimethylamino - phenyl) - 2-propen -1 - one(8)and 1- (2,4 - dimethoxyphenyl) - 3 -phenyl - 2 - propen -1- one are prepared. Their structures are determinded by MS, 1HNMR and element analysis. Conclusion: Hydroxy in benzene ring has an gnat effect on preparatin of Chalcons.
- 【文献出处】 兰州医学院学报 ,Journal of Lanzhou Medical College , 编辑部邮箱 ,1998年02期
- 【分类号】R914
- 【被引频次】33
- 【下载频次】1020