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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 8
BKCSDE 32(8)
August 20, 2011 
 
Title
 Palladium-Catalyzed Cross-Coupling Reaction and Gold-Catalyzed Cyclization for Preparation of Ethyl 2-Aryl 2,3-Alkadienoates and α-Aryl γ-Butenolides
Author
 Phil Ho Lee
Keywords
 Palladium, Gold, Indium, Cross-coupling reaction, Cyclization
Abstract
 Efficient synthetic method for the preparation of ethyl 2-aryl-2,3-alkadienoates through Pd-catalyzed selective allenyl cross-coupling reactions of aryl iodides with organoindiums generated in situ from indium and ethyl 4- bromo-2-alkynoate was developed. The cyclization reaction of ethyl 2-aryl-2,3-alkadienoates catalyzed by AuCl3 and AgOTf in the presence of AcOH or TfOH produced various α-aryl γ-butenolides or γ-substituted α- aryl γ-butenolides.
Page
 2911 - 2915
Full Text
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