期刊
TETRAHEDRON
卷 66, 期 31, 页码 5884-5892出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2010.05.020
关键词
Hypervalent iodine; Oxidative amidation; Phenols; Amides; Alkaloids
资金
- University of British Columbia
- Canada Research Chair
- NSERC
- CIHR
- CFI
- BCKDF
- MerckFrosst Canada
- CNRS
- MRT
- Laird Graduate Fellowship
The oxidative amidation of phenols effects the conversion of appropriately substituted phenols into 4-amidodienones ('para-oxidative amidation') or 2-amidodienones ('ortho-oxidative amidation') by the action of hypervalent iodine reagents. The reagent, (diacetoxyiodo)benzene ('DIB') is especially effective in these transformations. This paper focuses on techniques for the desymmetrization of the dienoes thus obtained, leading to the stereocontrolled creation of N-substituted spiro carbons. The methodology creates new opportunities in alkaloid synthesis, as apparent from a number of examples. (C) 2010 Elsevier Ltd. All rights reserved.
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