SCHEDULED MAINTENANCE
In Lewis acid-catalysed ene reactions of esters (1 and 2) of 2-trifluoromethylpropenoic acid, the high reactivity of 1 and 2 and preparation of an optically active trifluoromethylated tertiary carbon (S-configuration, >80% diastereoisomeric excess) by TiCl4-catalysed ene reactions of 2 are reported.
Y. Hanzawa, M. Suzuki, T. Sekine, T. Murayama and T. Taguchi, J. Chem. Soc., Chem. Commun., 1991, 721 DOI: 10.1039/C39910000721
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