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
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摘要: Abstract Two routes to cyclic ethers based on diazophosphonates are described. The first involves the rhodium(II) catalysed O-H insertion of 2-propanol followed by Wadsworth-Emmons reaction give enol 3, and deprotection cyclisation 5. second route preparation aldehyde ketone phosphonates 9, also rhodium carbenoid reactions, functional group interconversion. On treatment with sodium hydride phosphanates 9 undergo intramolecular 13.
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