Lipase-catalysed resolution of 3-(aryloxy)-1,2-propanediol derivatives — Towards an improved active site model of Pseudomonas cepacia lipase (amano PS)
摘要:
A variety of 3-(aryloxy)-1,2-propanediol derivatives with different substituents on the aromatic ring or at the primary hydroxy group were used as substrates in a kinetic resolution by transesterification with vinyl acetate catalysed by lipase from Pseudomonas cepacia (Amano PS). Derivatives with substituents in the para-position of the aromatic ring were accepted as substrates and resolved with high enantioselectivity. The corresponding derivatives with substituents in the ortho-position were much worse substrates for lipase PS or even non-substrates if the substituent was sufficiently space-filling as found for the tert-butyl, phenyl, benzyl or benzoyl residue. Otherwise, if the primary hydroxy group was substituted by unbranched long-chain acyl residues very good substrates were resulting. In contrast, derivatives with sterically crowded residues at the primary hydroxy group such as the pivaloyl, tert-butyldimethylsilyl, methanesulfonyl, para-toluenesulfonyl or trityl groups were nonsubstrates for lipase PS.
Klebanov, M. S.; Kir'yazev, F. Yu.; Chervinskii, A. Yu., Journal of Organic Chemistry USSR (English Translation), 1984, vol. 20, # 11, p. 2193 - 2196
作者:Klebanov, M. S.、Kir'yazev, F. Yu.、Chervinskii, A. Yu.、Shologon, I. M.
DOI:——
日期:——
Lipase-catalysed resolution of 3-(aryloxy)-1,2-propanediol derivatives — Towards an improved active site model of Pseudomonas cepacia lipase (amano PS)
A variety of 3-(aryloxy)-1,2-propanediol derivatives with different substituents on the aromatic ring or at the primary hydroxy group were used as substrates in a kinetic resolution by transesterification with vinyl acetate catalysed by lipase from Pseudomonas cepacia (Amano PS). Derivatives with substituents in the para-position of the aromatic ring were accepted as substrates and resolved with high enantioselectivity. The corresponding derivatives with substituents in the ortho-position were much worse substrates for lipase PS or even non-substrates if the substituent was sufficiently space-filling as found for the tert-butyl, phenyl, benzyl or benzoyl residue. Otherwise, if the primary hydroxy group was substituted by unbranched long-chain acyl residues very good substrates were resulting. In contrast, derivatives with sterically crowded residues at the primary hydroxy group such as the pivaloyl, tert-butyldimethylsilyl, methanesulfonyl, para-toluenesulfonyl or trityl groups were nonsubstrates for lipase PS.
KLEBANOV, M. S.;KIRYAZEV, F. YU.;CHERVINSKIJ, A. YU.;SHOLOGON, I. M., ZH. ORGAN. XIMII, 1984, 20, N 11, 2407-2411
作者:KLEBANOV, M. S.、KIRYAZEV, F. YU.、CHERVINSKIJ, A. YU.、SHOLOGON, I. M.