• Bulletin of the Korean Chemical Society
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• v.23 no.4
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• pp.535-536
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• 2002

• Bulletin of the Korean Chemical Society
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• v.24 no.8
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• pp.1193-1196
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• 2003

Palladium-catalyzed heteroannulation of 2-amino-3-iodoquinoline derivatives and 1-trimethylsilyl internal alkynes provided highly regioselective pyrrolo[2,3-b]quinolines with trimethylsilyl group next to the nitrogen atom in the pyrrole ring.

• Bulletin of the Korean Chemical Society
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• v.22 no.6
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• pp.545-546
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• 2001

• Bulletin of the Korean Chemical Society
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• v.21 no.5
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• pp.541-543
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• 2000

• Bulletin of the Korean Chemical Society
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• v.34 no.9
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• pp.2645-2649
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• 2013

We have developed a one-step synthesis of benzofurans from o-iodophenol and various terminal alkynes, by using Pd catalyst supported on nano-sized carbon balls (NCB) under copper- and ligand free conditions. This recyclable catalyst could be reused more than 5 times in the same heteroannulation reaction. The results have demonstrated that diverse 2-substituted benzofurans with tolerant functional groups can be prepared simply and conveniently under these conditions.