Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 87, Issue 7, Pages 4560-4568Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.1c02838
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- German Academic Exchange Service (DAAD)
- federal state of Mecklenburg-Western Pomerania, Germany
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In this study, two series of isomeric naphthothiophenes were prepared through a simple two-step reaction.
Naphthothiophenes were prepared from commer-cially available 2,3-dibromothiophenes in two steps by one-potSuzuki/Sonogashira or Sonogashira/Suzuki coupling reactions,followed by intramolecular alkyne-carbonyl-metathesis reactions.Thefinal cyclization reaction proceeds in the presence ofp-toluenesulfonic acid and provides a rapid access to two series ofisomeric naphthothiophenes.
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