A Synthetic Alternative to the Type-II Intramolecular 4 + 3 Cycloaddition Reaction
作者:Richard S. Grainger、Richard B. Owoare、Patrizia Tisselli、Jonathan W. Steed
DOI:10.1021/jo034356f
日期:2003.10.1
Oxyallyl cations generated in situ from dihaloketones have been found to undergo the Favorskii rearrangement in preference to an intramolecular Type-II 4 + 3 cycloaddition reaction in trifluoroethanol and hexafluoropropan-2-ol solvents, generating acrylate esters with high cis selectivity. A synthetic alternative to the intramolecular Type-II 4 + 3 cycloaddition has been developed on the basis of intramolecular