摘要
目的合成从太平洋海鞘Polycarpa aurata中提取的天然产物2-(4-甲氧基苯基)-2-氧代乙酸甲酯。方法采取实验的方法,即以苯甲醚为起始原料,经溴化制成Grignard试剂后,和草酸二甲酯在-40℃至室温反应2 h。结果得到2-(4-甲氧基苯基)-2-氧代乙酸甲酯,产率71.1%,并用IR,MS,1H NMR以及元素分析进行了表征。结论所用实验方法,原料易得,和其他合成方法相比产率较高。
Aim To synthesize methyl 2-(4-methoxyphenyl)-2-oxoacetate from the ascidian Polycarpa aurata. Methods Methyl 2-(4-methoxyphenyl)-2-oxoacetate was prepared by the reaction of Grignard reagent of bromoanisole and dimethyl oxalate. Results The yield of methyl 2-(4-methoxy phenyl) -2-oxoacetate was 71.1%. Title compounds were characterized by ^1H NMR, IR, MS and elementary analysis. Conclusion The method of preparation of α-keto esters got better yield than other methods.
出处
《西北大学学报(自然科学版)》
CAS
CSCD
北大核心
2007年第6期1013-1015,共3页
Journal of Northwest University(Natural Science Edition)
基金
国家自然科学基金资助项目(30070905)
陕西省重点实验室基金资助项目(03JS008
04JS06)