ol051044l_si_002.cif (17.31 kB)
DABCO-Catalyzed Reaction of Allenic Esters and Ketones with Salicyl N-Tosylimines: Synthesis of Highly Functionalized Chromenes
dataset
posted on 2005-07-07, 00:00 authored by Yong-Ling Shi, Min ShiDABCO-catalyzed reactions of salicyl N-tosylimines with ethyl 2,3-butadienoate and penta-3,4-dien-2-one proceed smoothly at room temperature
in dichloromethane to give the corresponding chromenes in good to excellent yields.