摘要
以香草醛和6-溴己酸为起始原料,经过6步反应合成了辣椒素类似物8-甲基-顺-6-壬烯酰(3,4-二甲氧基)苄胺.一方面,先将香草醛羟基进行甲基保护后转化为肟,然后经金属法还原产生重要的中间体3,4-二甲氧基苄胺;另一方面,首先利用固相反应将6-溴己酸转化为三苯基膦盐,再经Wittig缩合反应制备8-甲基-顺-6-壬烯酸,最后将产物与3,4-二甲氧基苄胺反应合成目标产物.利用IR、NMR等结构表征,表明经该法成功合成了目标化合物.
An efficient synthesis of 8-methyl-Z-6-nonenvanillyl amide was accomplished with vanillin and cyclohexanone through six steps. The key features of the approach involve: (1) synthesis of vanilly; (2)the installation of amine group by reduction of hydrozine vanillin in the present of powder zinc; (3) the oxidation of cyclohexanone by H2O2, the bromidation with HBr and the Wittig condensation using (6-carboxyhexyl)(triphenyl)phosphonium bromide and iso-butanal; (4) the connection of the unsaturated carboxylic acid 6 with the amine 4 to compound the target product. IR and MR spectra were used to confirm the structures.
出处
《辽宁师范大学学报(自然科学版)》
CAS
北大核心
2008年第2期196-198,共3页
Journal of Liaoning Normal University:Natural Science Edition
基金
辽宁省教育厅科学技术研究项目(05L202)
关键词
辣椒素
合成
表征
8-methyl-Z-6-nonenvanillyl amide
capsaicin
synthesis