Abstract
AbstractThe synthesis of new chloramphenicol base‐derived chiral hydroxyl oxazoline ligands, and their use in the first Zn(OTf)2‐catalyzed enantioselective alkynylation of isatins are described. This transformation features mild reaction conditions, a remarkably broad substrate scope, and excellent functional group tolerance, affording the corresponding tertiary propargylic alcohols in high yields and with high enantioselectivities. The application of chiral hydroxyl oxazolines as ligands in Zn(II)‐catalyzed asymmetric alkynylation reactions is unprecedented.magnified image
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