Regioselective synthesis of fraxinellone-based hydrazone derivatives as insecticidal agents
作者:Yong Guo、Yuan-Yuan Yan、Chun Yang、Xiang Yu、Xiao-Yan Zhi、Hui Xu
DOI:10.1016/j.bmcl.2012.07.058
日期:2012.9
natural products-based insecticidal agents, twenty-three new fraxinellone-based hydrazone derivatives were smoothly prepared from fraxinellone via regioselectively allylic oxidation in the presence of selenium dioxide or chromium trioxide under microwave irradiation and subsequent condensation with hydrazides or hydrazines. Their insecticidal activity was evaluated against the pre-third-instar larvae
在我们旨在发现和开发基于天然产物的杀虫剂的计划的继续过程中,在二氧化硒或三氧化铬的存在下,在微波辐射下,通过区域选择性烯丙基氧化,由六氢呋喃酮顺利地制备了二十三种新的六氢呋喃酮基衍生物。随后与酰肼或肼缩合。在体内对Mythimna separata Walker的三龄前幼虫进行了杀虫活性评估。与太生丹宁相比,尤其是化合物6d和7a表现出最显着的杀虫活性,太生丹宁是衍生自Melia azedarach的商业植物杀虫剂。