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Synthesis 2009(4): 674-680
DOI: 10.1055/s-0028-1083339
DOI: 10.1055/s-0028-1083339
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New YorkAn Expedient Synthesis of Bis-Fused Benzofuran and a Two-Directional Ring-Closing Metathesis for the Synthesis of Bisbenzoxepines and Bisbenzoxocines
Weitere Informationen
Received
25 September 2008
Publikationsdatum:
27. Januar 2009 (online)
Publikationsverlauf
Publikationsdatum:
27. Januar 2009 (online)

Abstract
Synthesis of bis-fused benzofuran derivatives by the implementation of palladium-mediated intramolecular cyclization is described. To our knowledge, this is the first report of the synthesis of bis-fused benzofuran by this protocol. Bisbenzoxepine and bisbenzoxocine derivatives were also synthesized by the application of two-directional ring-closing metathesis.
Key words
palladium catalyst - Grubbs catalyst - intramolecular cyclization - two-directional ring-closing metathesis - 5-exo-trig - benzofuran - oxepine - oxocine
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