Chemical properties of 2‐isopropylimino‐3‐isopropyl‐5‐methoxy‐Δ4‐oxazoline: Formation of charge‐transfer complexes from an oxazoline

2‐Isopropylimino‐3‐isopropyl‐5‐methoxy‐Δ4‐oxazoline 1 copolymerizes readily by a radicalar mechanism with maleic anhydride, an air and heat sensitive isolable charge‐transfer monomer 2 being formed as intermediate. Similarly, a (more stable) adduct 4 has been prepared from 1 and TCNE. In opposition, acrylic acid adds onto the Δ4‐oxazoline endocyclic double bond giving the acrylate 5. The hydrolysis and hydrogenation of 1 are also reported. Copyright © 1985 Journal of Heterocyclic Chemistry