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Beilstein J. Org. Chem. 2011, 7, 759–766, doi:10.3762/bjoc.7.86
Graphical Abstract
Figure 1: Enantiomers of α-(trifluoromethyl)-β-lactam (1).
Scheme 1: Synthetic route involving a diastereoisomeric separation to α-(trifluoromethyl)-β-lactam ((S)-1) fr...
Figure 2: X-ray structures of (a) β-lactam (S)-1 and (b) (αR,3R)-5c. (a) Determination of the absolute stereo...
Scheme 2: Synthesis of stereoisomers 5c. The stereochemistry of the major isomer (αR,3R)-5c was solved by X-r...