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Synlett 1998; 1998(8): 888-890
DOI: 10.1055/s-1998-1788
DOI: 10.1055/s-1998-1788
letter
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Synthesis of Dihydropyrans via Pd-Catalyzed Cyclization of 2-Allyl-1,3-dicarbonyl Compounds and Vinylic Triflates or Halides
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Publication History
Publication Date:
31 December 2000 (online)
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The palladium-catalyzed reaction of 2-allyl-1,3-dicarbonyl compounds with vinylic triflates or halides affords dihydropyran derivatives, most probably through the intermediacy of η 3-allylpalladium complexes that undergo an intramolecular nucleophilic attack by the oxygen.
dihydropyrans - palladium catalysis - cyclization - vinyl triflates - vinyl halides