90888-16-7Relevant academic research and scientific papers
A novel approach to enantiopure cyclopropane compounds from biotransformation of nitriles
Wang, Mei-Xiang,Feng, Guo-Qiang
, p. 1575 - 1583 (2007/10/03)
Rhodococcus sp. AJ270, a powerful and versatile nitrile hydratase/amidase containing microbial whole-cell system, catalyzed the enantioselective hydrolysis of both racemic trans- and cis-2-arylcyclopropanecarbonitriles to afford the corresponding amides and acids with enantiomeric excesses as high as >99%. The reaction rate and enantioselectivity observed for both nitrile hydratase and amidase were also strongly dependent upon the nature of the substituent and substitution pattern on the benzene ring of the substrates. The application of and the advantages of biotransformation of nitriles were demonstrated by preparing (1S,2R)-2-phenylcyclopropylamine and (1R,2R)-2-phenylcyclopropylmethylamine through facile and straightforward chemical manipulations of (1S,2S)-2-phenylcyclopropanecarboxylic acid and (1R,2R)-2-phenylcyclopropanecarboxamide, respectively.
Enantioselective synthesis of chiral cyclopropane compounds through microbial transformations of trans-2-arylcyclopropanecarbonitriles
Wang,Feng
, p. 6501 - 6505 (2007/10/03)
Enantioselective biotransformations of racemic trans-2-arylcyclopropanecarbonitriles catalyzed by Rhodococcus sp. AJ270 cells proceeded efficiently to give good to excellent optical yields of (-)-(1R,2R)-2-arylcyclopropanecarboxamides and (+)-(1S,2S)-2-arylcyclopropanecarboxylic acids, which were converted into optically active cyclopropylmethylamine and cyclopropylamine derivatives upon reduction and the Curtius rearrangement. (C) 2000 Elsevier Science Ltd.
