Enantioselective synthesis of γ-aminobutyric acid derivatives by Ni(II)-catalyzed reaction of diethyl malonate with nitroalkenes
摘要:
A new synthetic approach to (3R)-4-amino-3-methylbutyric acid and [(4R)-2-oxo-4-phenylpyrrolidin-1-yl]acetamide [(R)-phenotropil] has been developed. Asymmetric center with a required configuration has been generated via enantioselective addition of diethyl malonate to 1-nitropropene and beta-nitrostyrene, catalyzed by Ni(II) complexes with (R,R)- and (S,S)-N,N'-dibenzylcyclohexane-1,2-diamine.
Enantioselective synthesis of γ-aminobutyric acid derivatives by Ni(II)-catalyzed reaction of diethyl malonate with nitroalkenes
摘要:
A new synthetic approach to (3R)-4-amino-3-methylbutyric acid and [(4R)-2-oxo-4-phenylpyrrolidin-1-yl]acetamide [(R)-phenotropil] has been developed. Asymmetric center with a required configuration has been generated via enantioselective addition of diethyl malonate to 1-nitropropene and beta-nitrostyrene, catalyzed by Ni(II) complexes with (R,R)- and (S,S)-N,N'-dibenzylcyclohexane-1,2-diamine.