Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 10, Issue 9, Pages 1735-1738Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ob06591f
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- DST
- CSIR, New Delhi
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A new, highly stereoselective intramolecular cyclopropanation of vinylogous carbamates with carbenes in the presence of Cu(acac)(2) as the catalyst has been developed for the construction of cyclopropapyrrolidinones. The 'syn' isomer of N-DAC can be converted to the 'anti' isomer by simple silica gel treatment. Regioselective cleavage of each of the cyclopropane bonds of these two acceptor substituted N-DACs led to a diverse array of azacycles.
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