Journal
SYNTHETIC COMMUNICATIONS
Volume 42, Issue 4, Pages 582-588Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00397911.2010.527424
Keywords
1-Amidoalkyl-2-naphthols; metal benzenesulfonates; multicomponent reaction; solvent-free conditions
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Funding
- Committee of Science and Technology of Liaoning Province of China [20091001]
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A three-component, one-pot condensation of 2-naphthol, aldehydes, and amides catalyzed by zinc benzenesulfonate gives 1-amidoalkyl-2-naphthols in good yields at 80 degrees C under solvent-free conditions. The catalytic activities of zinc benzenesulfoante and 12 other metal benzenesulfonates were compared. After the reaction, zinc benzenesulfoante can be recycled several times without distinct loss of catalytic activity.
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