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Wang, J., Li, W., Liu, Y., Chu, Y., Lin, L., Liu, X. and Feng, X. (2010) Asymmetric Cyanation of Activated Olefins with Ethyl Cyanoformate Catalyzed by a Modular Titanium Catalyst. Organic Letters, 126, 1280-1283. https://doi.org/10.1021/ol100169r

has been cited by the following article:

• TITLE: An Efficient Synthesis of Enantiomerically Pure γ-Aminobutyric Acid (GABA) Derivatives

  AUTHORS: Huixia Liu, Jiani Yuan, Qinqin Tian, Nan Ji, Wei He

  KEYWORDS: Chiral, GABA, Organocatalyst, Asymmetric Michael Addition

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.5 No.8, August 11, 2017

  ABSTRACT: Chiral γ-aminobutyric acid (GABA) derivatives are the normal inhibitory neurotransmitters in the mammalian central nervous system. In this paper, enantiopure GABA derivatives 6 were synthesized via reduction/cyclization/hydrolysis cascade reactions from the highly enantioselective β-aryl-γ- ni-troalkanes Michael adducts 4, which was obtained from asymmetric Michael addition of S, S’-diphenyldithiomalonate 2 to trans-β-nitroolefins 1, using novel chiral cinchona alkaloid-derived thioureas 3 as the organocatalysts. This synthesis represents an efficient, highly selective and environmental benign methodology for GABA derivatives.