作者:Christopher J. Moody、Eric-Robert H.B. Sie、Janusz J. Kulagowski
DOI:10.1016/s0040-4020(01)88479-9
日期:1992.1
described. The first involves the rhodium(II) catalysed O-H insertion of 2-propanol followed by Wadsworth-Emmons reaction to give the enol ethers 3, and deprotection and cyclisation to the cyclic enol ethers 5. The second route involves the preparation of aldehyde and ketone phosphonates 9, also by rhodium carbenoid O-H insertion reactions, followed by functional group interconversion. On treatment
描述了两种基于重氮膦酸酯的环状醚的路线。首先涉及2-丙醇的铑(II)催化的OH插入,然后进行Wadsworth-Emmons反应以生成烯醇醚3,然后将其脱保护并环化成环状烯醇醚5。第二种途径涉及醛和酮膦酸酯9的制备,也通过铑类胡萝卜素OH插入反应,然后进行官能团互变而制备。在用氢化钠处理时,膦酸酯9经历分子内的Wadsworth-Emmons反应以给出环状醚13。