作者:Hai Jiao Dong、Xu Dong Ban、Cheng Li、Jing Qian Huo、Zhan Hu Gong、Zhan Hai Kang、Jin Gao Dong、Jin Lin Zhang
DOI:10.14233/ajchem.2014.16703
日期:——
4-(2-Amino-propanamideyl)-3,4,5,6,7,8,9,10-octahydro-5,6,8-trihydroxy-3-methyl-isocoumarin, which was isolated from Flaveria bidentis (L) Kuntze, had herbicidal activity and its structure was modified in this research in order to get the isocoumarin compouds with higher herbicidal activity. The reaction starts with 2-amino-4,5-dimethoxy benzoate and then diazo iodination, esterfication, heck coupling, cyclization reaction and cyna substitution reaction were tested to obtain 3-hexyl-4-cyan-6,7-dimethoxy isocoumarin. The isocoumarin derivative is an appropriate precursor for the synthesis of new herbicide.
4-(2-
氨基丙酰胺基)-3,4,5,6,7,8,9,10-八氢-5,6,8-三羟基-3-甲基异
香豆素,来自Flaveria bidentis (L) Kuntze,具有除草活性。本研究对其结构进行了改造,以获得具有更高除草活性的异
香豆素化合物。反应以
2-氨基-4,5-二甲氧基苯甲酸酯开始,然后测试了重氮
碘化、酯化、赫克偶联、环化反应和
氰化取代反应,以获得3-己基-4-
氰-6,7-二甲氧基异
香豆素。该异
香豆素衍
生物是合成新型
除草剂的合适前体。