Journal
ORGANIC LETTERS
Volume 18, Issue 2, Pages 196-199Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.5b03236
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Funding
- National Natural Science Foundation of China [21272085, 21472056]
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A transition-metal-free multicomponent coupling cyclization reaction was explored involving arynes, tosylhydrazine, and a-bromo ketones. The reaction proceeds via a formal [2 + 2 + 2] cycloaddition, giving access to cinnoline derivatives in moderate yields under mild conditions. Three chemical bonds were formed-two C-N bonds and one C-C bond-in a single step.
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