Synthesis of perhydrofuro [2,3-b] furan compounds and the structure-activity relationships of the antifeeding active compounds.
作者:Yasuhiro KOJIMA、Natsuki KATO
DOI:10.1271/bbb1961.44.855
日期:——
A new synthetic route to perhydrofuro [2, 3-b] furan was developed by employing 3-sub-stituted furan derivatives (t-butyl and phenyl systems) that were derived by coupling reaction with epoxides and a new reagent, lithium di (3-furyl) cuprate. The synthesized furo-furan compounds were prepared to various derivatives for testing antifeeding activities. The results suggest that higher degree activities depend on the presence of a moderately polar, substituent group. Moreover, in order to enhance the antifeeding activities, the hydroxy group of the hem iacetal should be protected with an acyl or methyl group.
通过与环氧化物和一种新试剂--二(3-呋喃基)铜酸锂--进行偶联反应,利用 3-亚取代的呋喃衍生物(叔丁基和苯基体系),开发出了一条全氢呋喃 [2, 3-b] 的新合成路线。合成的呋喃化合物被制备成各种衍生物,用于测试其抗侵染活性。结果表明,较高的活性取决于中等极性取代基的存在。此外,为了提高抗飞播活性,半缩醛的羟基应使用酰基或甲基进行保护。