Journal
CHEMICAL SCIENCE
Volume 11, Issue 17, Pages 4482-4487Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sc05522c
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Funding
- National Key Research and Development Project [2019YFC1708902]
- National Natural Science Foundation of China [21632001, 21602005, 81821004]
- Drug Innovation Major Project, Peking University [2018ZX09711-001, PKU2020PKYZX004]
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes [2060302]
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The intramolecular Csp(3)-H and/or C-C bond amination is very important in modern organic synthesis due to its efficiency in the construction of diversified N-heterocycles. Herein, we report a novel intramolecular cyclization of alkyl azides for the synthesis of cyclic imines and tertiary amines through selective Csp(3)-H and/or C-C bond cleavage. Two C-N single bonds or a C=N double bond are efficiently constructed in these transformations. The carbocation mechanism differs from the reported metal nitrene intermediates and therefore enables metal-free and new transformation.
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