Enzymatic resolution of cyclic N-Boc protected β-aminoacids
Methyl and ethyl esters of N-Boc homoproline, homopipecolic acid and 3-carboxymethyl-morpholine were kinetically resolved by hydrolysis catalysed by Burkholderia cepacia lipase to give the corresponding acids and residual esters in enantiomeric excesses better than 99% (E > 100).
Pousset, Cyrille,Callens, Roland,Haddad, Mansour,Larcheveque, Marc
p. 3407 - 3412
(2007/10/03)
An efficient synthesis of chiral cyclic β-amino acids via asymmetric hydrogenation
Cyclic β-amino acids, homoproline, homopipecolic acid and 3-carboxy-methylmorpholine were obtained in high enantiomeric excesses by transition metal-catalyzed asymmetric hydrogenation of cyclic β-acylamino-alkenoates. These compounds were synthesized by a
Pousset, Cyrille,Callens, Roland,Marinetti, Angela,Larchevêque, Marc
p. 2766 - 2770
(2007/10/03)
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