Journal of the Chemical Society. Chemical communications p. 1153 - 1155 (1993)
Update date:2022-08-03
Topics:
Davies, Stephen G.
Garrido, Narciso M.
Ichihara, Osamu
Walters, Iain A. S.
A strategy of highly stereoselective conjugate additions of lithium (R)-(α-methylbenzyl)benzylamide to tert-butyl cinnamate and its 2-methyl derivative combined with appropriate tandem or sequential electrophilic quenches allows the asymmetric syntheses of β-phenylalanyl (95percent enantiomeric excess) and homochiral (2R,3S)- and (2S,3S)-α-methyl-β-phenylalanine and the corresponding β-lactams (3R,4S)- and (3S,4S)-3-methyl-4-phenylazetidinones.
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