The use of diazophosphonates in the synthesis of cyclic ethers
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 insertionreactions, followed by functional group interconversion. On treatment