Superacid-Promoted Additions Involving Vinyl-Substituted Pyrimidines, Quinoxalines, and Quinazolines: Mechanisms Correlated to Charge Distributions
作者:Yiliang Zhang、Matthew R. Sheets、Erum K. Raja、Kenneth N. Boblak、Douglas A. Klumpp
DOI:10.1021/ja202557z
日期:2011.6.8
quinoxalines, and quinazolines exhibit an unusual regioelectronic effect that controls the type of addition reaction observed. Depending on the ring position of the vinyl substituent, either conjugate addition or Markovnikov addition occurs. The mode of addition has been shown to correlate well to NBO calculated charges.