Transition-Metal-Free Synthesis of Aryl-Substituted<i>tert</i>-Butyl Ynol Ethers through Addition/Elimination Substitution at an sp Centre
作者:Vincent J. Gray、Ben Slater、Jonathan D. Wilden
DOI:10.1002/chem.201203015
日期:2012.12.3
sulfonamide leads to displacement of the sulfonamide at the sp centre and isolation of the ynol ether in good yield in a single operation (see scheme). The mechanistic pathway has been probed by the use of coordinating additives, 13C‐labelling experiments and ab initio calculations, which indicated that an addition/elimination mechanism is in operation.