CDRI communication number 7471.
Short Communication
Enantioselective Synthesis of Functionalized 1-Benzoxepines by Phenoxide Ion Mediated 7-endo-tet Carbocyclization of Cyclic Sulfates†‡
Article first published online: 2 DEC 2008
DOI: 10.1002/ejoc.200800661
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Das, S. K., Dinda, S. K. and Panda, G. (2009), Enantioselective Synthesis of Functionalized 1-Benzoxepines by Phenoxide Ion Mediated 7-endo-tet Carbocyclization of Cyclic Sulfates. Eur. J. Org. Chem., 2009: 204–207. doi: 10.1002/ejoc.200800661
- †
- ‡
Dedicated to Professor Goverdhan Mehta on his 65th birthday
Publication History
- Issue published online: 2 JAN 2009
- Article first published online: 2 DEC 2008
- Manuscript Received: 3 JUL 2008
Funded by
- Department of Science and Technology, New Delhi, India. Grant Number: SR/S1/OC-23/2005
Keywords:
- 1-Benzoxepine;
- Sharpless asymmetric dihydroxylation;
- Cyclic sulfate
Abstract
A new asymmetric synthesis of 2,3-disubstituted 1-benzoxepines is described. Key steps include Sharpless asymmetricdihydroxylation of trans-α,β-unsaturated esters and phenoxide ion mediated intramolecular 7-endo-tet carbocyclization of syn-2,3-dihydroxy ester derived cyclic sulfates. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

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