RSC Advances · 2013 · 19 citations · 44 references
Natural SciencesChemistryOrganic ChemistryHeterocycle SynthesisHeterocyclic ChemistryHeterocyclic CompoundsRetrosynthetic AnalysisBand GapOne-pot Heterocycle SynthesisRing-forming Reactions
We report a one-pot Garratt–Braverman cyclization and Scholl oxidation route to polyaromatic compounds, some having a band gap below 3 eV, starting from bis-propargyl sulfones, ethers and protected amines. The method has the advantage of constructing 3 C–C bonds in one-pot in good yields.
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A Convenient Synthesis of Ethynylarenes and Diethynylarenes
S. Takahashi, Y. Kuroyama, Kenkichi Sonogashira et al. · Synthesis · 1980 · 1.1K citations