128869-06-7Relevant articles and documents
Rotational features of carbon-nitrogen bonds in N-aryl maleimides. Atroposelective reactions of o-tert-butylphenylmaleimides
Curran, Dennis P.,Geib, Steven,DeMello, Nicholas
, p. 5681 - 5704 (1999)
Atroposelective addition and cycloaddition reactions of N-2- (tertbutylphenyl)- and N-2,5 (di-tert-butylphenyl)maleimide and a substituted derivative have been studied. Good to excellent stereoselectivities are generally observed, and high rotation barriers (about 29 kcal/mol) prevent the products from inter, converting. Crystal structures of the precursors and products support a straightforward model where reactants attack trans to the o-tert butyl group.
Electrochemistry and Near-Infrared Spectra of Anion Radicals Containing Several Imide or Quinone Groups
Rak, Stanton F.,Jozefiak, Thomas H.,Miller, Larry L.
, p. 4794 - 4801 (2007/10/02)
A series of aromatic compounds possessing imide and quinone electron-acceptor groups were prepared using Diels-Alder reactions.These linear, aromatic compounds were studied using cyclic voltammetry and reduced electrochemically to produce solutions of the corresponding anion radicals.The anion radical near-infrared spectra were recorded and showed bands over the range 700-1700 nm (log ε 3.8-4.6).Most of the spectra are interpreted to arise from ?*-?* transitions.The spectra and Ε0 values are consistent with ground states in which the odd electron is delocalized over two electrophores.
