Tetrahedron Asymmetry p. 991 - 1000 (1995)
Update date:2022-08-16
Topics:
Camps, Pelayo
Gimenez, Silvia
Reaction of rac-α-arylpropanoyl chlorides with (R)- and (S)-3-hydroxy-4,4-dimethyl-1-phenyl-2-pyrrolidinone (R)- and (S)-1, in the presence of triethylamine, under standard esterification conditions, gave (R,R)- and (S,S)-3, respectively, with high diastereoselectivity.Controlled acidic hydrolysis afforded the corresponding (R)- or (S)-α-arylpropanoic acids with high enantioselectivity, the chiral auxiliary being recovered efficiently.
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