Journal
TETRAHEDRON LETTERS
Volume 50, Issue 36, Pages 5149-5151Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.06.131
Keywords
Iron; Diazoketone; Halterman porphyrin; Asymmetric cyclopropanation; Cyclopropyl ketones
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The asymmetric addition of diazoacetophenone to styrene derivatives to give optically active cyclopropyl ketones (ee up to 80%) was carried out rising chiral iron porphyrins as homogeneous catalysts. Intermolecular N-H functionalization of anilines by means of carbenoid-induced N-H insertion was also possible but without enantioselectivity. (C) 2009 Elsevier Ltd. All rights reserved.
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