Catalytic Three-Component Domino Reaction for the Preparation of Trisubstituted Oxazoles
作者:Henrik v. Wachenfeldt、Philipp Röse、Filip Paulsen、Nagarajan Loganathan、Daniel Strand
DOI:10.1002/chem.201300019
日期:2013.6.10
end, an efficient gold‐catalyzed three‐component domino reaction to form oxazoles directly from imines, alkynes, and acid chlorides is presented. The reaction proceeds in a single synthetic step by using a gold(III)–N,N′‐ethylenebis(salicylimine) (salen) catalyst to give trisubstituted oxazoles in up to 96 % yield. The substrate scope, a mechanistic study exploring the role of the gold catalyst, and the