Journal
TETRAHEDRON LETTERS
Volume 51, Issue 43, Pages 5662-5665Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2010.07.159
Keywords
Copper(I) triflate; Cyclopropanation; Diazoamides; Oxindoles; Rhodium(II) acetate
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Funding
- Department of Science and Technology (DST), New Delhi
- CSIR, New Delhi
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Reaction of cyclic diazoamides and cyclic olefins or heteroaromatic systems using copper(I) triflate as a catalyst furnished a variety of strained spiro-cyclopropanooxindoles in a diastereoselective manner under mild reaction conditions. The effect of copper(I) trifiate and rhodium(II) acetate catalysts on the cyclopropanation was also studied. (C) 2010 Elsevier Ltd. All rights reserved.
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