4.4 Article

Enantioselective intramolecular amidation of sulfamate esters catalyzed by chiral manganese(III) Schiff-base complexes

Journal

TETRAHEDRON LETTERS
Volume 46, Issue 32, Pages 5403-5408

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.05.146

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Enantioselective intramolecular amidation of sulfamate esters catalyzed by chiral manganese(III) Schiff-base complexes under mild conditions (PhI(OAc)(2), Al2O3, C6H6, 5 degrees C) was achieved in moderate to good yields (up to 92%), substrate conversions (up to 99%), with virtually complete cis-selectivity and with ee values up to 79% ee. (c) 2005 Elsevier Ltd. All rights reserved.

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