Abstract
Stable σH-adducts of O- and C-nucleophiles were obtained with cations of 5-(het)aryl-2,3-dicyano-1-ethylpyrazinium, and their structure was investigated by X-ray diffraction analysis. Analytical separation was performed of 1,2-dihydropyrazines into individual enantiomers by means of HPLC on columns with chiral sorbents.
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Dedicated to the Full Member of the Russian Academy of Sciences G.A. Tolstikov on occasion of his 75th anniversary
Original Russian Text © E.V. Verbitskii, G.L. Rusinov, P.A. Slepukhin, A.N. Grishakov, M.A. Ezhikova, M.I. Kodess, V.N. Charushin, 2008, published in Zhurnal Organicheskoi Khimii, 2008, Vol. 44, No. 2, pp. 305–312.
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Verbitskii, E.V., Rusinov, G.L., Slepukhin, P.A. et al. Stereochemical features of addition of O- and C-nucleophiles to 5-(Het)aryl-2,3-dicyano-1-ethylpyrazinium salts. Russ J Org Chem 44, 302–310 (2008). https://doi.org/10.1134/S107042800802019X
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DOI: https://doi.org/10.1134/S107042800802019X