A novel enantioselective route to monoprotected 2-substituted-1,3-dicarbonyl compounds has been developed via acylation of silylenol ethers with chiral ortho esters derived from diethyl or di-isopropyl (R,R)-tartrates; good yields and stereoselectivity can be achieved starting from cyclic enolsilanes.
T. Basile, L. Longobardo, E. Tagliavini, C. Trombini and A. Umani-Ronchi, J. Chem. Soc., Chem. Commun., 1990, 759 DOI: 10.1039/C39900000759
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