Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 85, Issue 6, Pages 4553-4559Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.0c00052
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Funding
- National Science Foundation [CHE-1664549, CHE-1559886]
- Colby College
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A tandem acetylene-activated SNAr-anionic cyclization strategy is presented for the synthesis of chalcogen-containing hetero[5]helicenes. Oxa-, thia-, and selena[5]helicenes are accessed from common ortho-fluoro-ethynylarene precursors, allowing the heteroatoms to be installed at the 1-position or 1- and 12-positions of the hetero[5]helicene inner core surface.
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