Tetrahedron Letters p. 4159 - 4162 (1995)
Update date:2022-08-25
Topics:
Zemribo, Ronald
Romo, Daniel
Chelation controlled <2+2> cycloadditions of trimethylsilylketene to chiral α- and β-benzyloxyaldehydes followed by desilylation provides a highly diastereoselective route to functionalized β-lactones.Several Lewis acids were examined and MgBr2*Et2O was found to give the highest diastereoselectivities and yields.
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