Lewandowska Elzbieta; Chatfield David C.// /Regioselectivity of Michael Additions to 3-(Pyridin-3-yl or Pyrimidin-2-yl)propenoates and Their N-Oxides - Experimental and Theoretical Studies/European Journal of Organic Chemistry; English; Volume 2005 Issue 15, Pages 3297 - 3303
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http://dx.doi.org/10.1002/ejoc.200500058