Journal
ORGANIC LETTERS
Volume 18, Issue 5, Pages 940-943Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.5b03657
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Funding
- 111 Project [J1103307]
- Program for Changjiang Scholars
- Fundamental Research Funds for the Central Universities [lzujbky-2014-194]
- Innovative Research Team in University [IRT1138]
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An unprecedented Lewis acid catalyzed [4 + 3] cycloaddition reaction is described that provides a straightfor-ward route to polycyclic products containing an imine-based indole azepine scaffold, starting from readily available internal tertiary alkynols and azides. This cycloaddition protocol provides efficient and atom-economical access to a new class of fascinating imine-containing products in satisfactory yields, which has shown good application in the construction of seven-membered N-heterocycles.
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