Lipase catalysis in organic solvents. Application to the synthesis of (R)- and (S)-atenolol
摘要:
Synthesis of (R)- and (S)-atenolol (1) was achieved in five steps starting from p-hydroxyphenylacetic acid. Lipase from Pseudomonas cepacia showed excellent selectivity toward kinetic resolution of key intermediates 1-[p-[(butoxycarbonyl)methyl]phenoxy]-3-chloropropan-2-ol (9) and its O-acetyl ester, 1-[p-[(butoxycarbonyl)methyl]phenoxy]-2-acetoxy-3-chloropropane (10).
Enantioselective Synthesis ofβ-Blockersvia Hydrolytic Kinetic Resolution of Terminal Oxiranes by Using Bimetallic Chiral {{2,2′-[Cyclohexane-1,2-diylbis(nitrilomethylidyne)]bis[phenolato]}(2−)}cobalt ([Co(salen)])-Type Complexes
作者:Rahul B. Kawthekar、Geon-Joong Kim
DOI:10.1002/hlca.200890037
日期:2008.2
The synthesis of chirally pure β-blockers was successfully achieved via hydrolytickineticresolution of butyl (±)-4-(oxiran-2-ylmethoxy)benzeneacetate ((±)-1) and (±)-4-(oxiran-2-ylmethoxy)benzeneacetonitrile ((±)-2) in the presence of bimetallicchiral [Co(salen)]-typecomplexes. The newly synthesized bimetallicchiral [Co(salen)]-typecomplexes exhibited excellent enantioselectivities of up to >98%
Lipase catalysis in organic solvents. Application to the synthesis of (R)- and (S)-atenolol
作者:H. S. Bevinakatti、A. A. Banerji
DOI:10.1021/jo00048a040
日期:1992.10
Synthesis of (R)- and (S)-atenolol (1) was achieved in five steps starting from p-hydroxyphenylacetic acid. Lipase from Pseudomonas cepacia showed excellent selectivity toward kinetic resolution of key intermediates 1-[p-[(butoxycarbonyl)methyl]phenoxy]-3-chloropropan-2-ol (9) and its O-acetyl ester, 1-[p-[(butoxycarbonyl)methyl]phenoxy]-2-acetoxy-3-chloropropane (10).