Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.tet.2004.02.009
Title: Indium(III) chloride catalyzed in situ generation of enamines and cyclization with imines: A novel route for synthesis of hexahydroxanthene-9-N- arylamines
Authors: Anniyappan, M.
Muralidharan, D.
Perumal, P.T.
Vittal, J.J. 
Keywords: Enamine
Imines
Indium trichloride
Xanthene
Issue Date: 22-Mar-2004
Citation: Anniyappan, M., Muralidharan, D., Perumal, P.T., Vittal, J.J. (2004-03-22). Indium(III) chloride catalyzed in situ generation of enamines and cyclization with imines: A novel route for synthesis of hexahydroxanthene-9-N- arylamines. Tetrahedron 60 (13) : 2965-2969. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tet.2004.02.009
Abstract: A simple, efficient, and novel method has been developed for the synthesis of hexahydroxanthene-9-N-arylamine derivatives through a one-pot reaction of cyclohexanone and morpholine with salicylaldehyde imines in the presence of indium(III) chloride as a catalyst. 1-(4-Morpholino)-cyclohexene enamine prepared in situ from cyclohexanone and morpholine in presence of 20mol% InCl3 in acetonitrile under reflux condition was used without further purification, for the cyclization reaction with salicylaldehyde Schiff's bases. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Tetrahedron
URI: http://scholarbank.nus.edu.sg/handle/10635/94040
ISSN: 00404020
DOI: 10.1016/j.tet.2004.02.009
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