• Quaternary
  • For chiral tertiary amines, NRR′R″ can only be resolved when the R, R′, and R″ groups are constrained in cyclic structures such as N-substituted aziridines (quaternary ammonium salts are resolvable). (wikipedia.org)
  • group
  • The presence of an amine group strongly increases the reactivity of the aromatic ring, due to an electron-donating effect. (wikipedia.org)
  • 5. The process for producing cellulose ester film of claim 1, wherein at least one of R 1 , R 2 and R 5 of the organic acid represented by Formula 1 is an alkoxy group, an acyl group, an oxycarbonyl group, a carbonyloxy group or an oxycarbonyloxy group. (patentsencyclopedia.com)