A novel and practical method for the synthesis of dinotefuran through Michael addition of nitromethane to diethyl maleate
作者:Haifeng Li、Lailai Wang
DOI:10.1016/j.tet.2017.12.002
日期:2018.1
A novel and practical synthesis of dinotefuran 1, featuring a new access to it from known key intermediate (tetrahydrofuran-3-yl)-methanamine 5, has been achieved through Michaeladdition reaction of nitromethane to diethyl maleate in 6 steps with 45.5% total yield. This synthesis is scalable and hence has high potential for application to further synthetic elaboration on such new neonicotinoid insecticide