期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 169, 期 -, 页码 72-77出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2014.11.008
关键词
Fluorous bis(oxazolines); Dihydroquinazolinone; Intramolecular amidation; Asymmetric catalysis
A Sc(OTf)(3)-catalyzed intramolecular amidation of imines with a novel fluorous bis(oxazolines) as ligand is presented. The corresponding chiral dihydroquinazolinones were obtained in 76-94% yield with enantioselectivities up to 98%. The fluorous ligand can be easily recovered and reused at least three times without significant loss of enantioselectivity. (C) 2014 Elsevier B.V. All rights reserved.
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