2-Imidazoline, 2-alkenyl

The anions of the 2-phosphoryl derivatives from 727 and 729 undergo Wadsworth-Emmons reactions with aldehydes or ketones to give 2-alkenyl imidazolines 728 and 730 (Scheme 179) <1997T1111>. An alternative olefmation involves alkylation of phenylselenyl derivative 731. Deprotection of 732 followed by oxidative elimination afforded N-1-unsubstituted 2-alkenyl imidazolines 733 <2000T2061>. 

Chem. Descrip. > 35% Alkylol ammonium salt of an acidic polyester with 60% butyl benzyl phthalate, < 5% hydroxyethyl alkenyl imidazoline Uses Wetting agent, dispersant, vise, reducer for min. filers in amine-accelerated unsat. polyester putty compds. 

---