A bifunctional iminophosphorane squaramide catalyzed enantioselective synthesis of hydroquinazolines via intramolecular aza-Michael reaction to α,β-unsaturated esters (Chemical Science, 2021)

(untitled) - Su, G; Thomson, CJ; Yamazaki, K; Rozsar, D; Christensen, KE; Hamlin, TA; Dixon, DJ