Regioselective Bismuth‐Catalyzed Synthesis of Pyranocoumarins and Furocoumarins from 4‐Hydroxycoumarins and Propargyl Alcohols

Regioselective Bismuth‐Catalyzed Synthesis of Pyranocoumarins and Furocoumarins from 4‐Hydroxycoumarins and Propargyl Alcohols

An efficient method for the bismuth‐catalyzed regioselective synthesis of pyranocoumarins and furocoumarins has been developed from the reaction of 4‐hydroxycoumarins with propargyl alcohols. The reaction proceeds through sequential propargylation and intramolecular cyclization reactions catalyzed b...

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Veröffentlicht in:Bulletin of the Korean Chemical Society 2020, 41(7), , pp.709-718
Hauptverfasser: Kim, Jaehyun, Lee, Kooyeon, Lee, Phil Ho
Format: Artikel
Sprache:eng
Schlagworte:
Bismuth
Catalysis
Furocoumarin
Pyranocoumarin
Regioselectivity
화학
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Zusammenfassung:An efficient method for the bismuth‐catalyzed regioselective synthesis of pyranocoumarins and furocoumarins has been developed from the reaction of 4‐hydroxycoumarins with propargyl alcohols. The reaction proceeds through sequential propargylation and intramolecular cyclization reactions catalyzed by bismuth(III) triflate. Regioselective Bismuth‐Catalyzed Synthesis of Pyranocoumarins and Furocoumarins.
ISSN:1229-5949
0253-2964
1229-5949
DOI:10.1002/bkcs.12058