Journal
SYNTHETIC COMMUNICATIONS
Volume 43, Issue 18, Pages 2517-2526Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00397911.2012.718026
Keywords
Amine; 8-aryl-7; 8-dihydro-[1; 3]dioxolo[4; 5-g]quinolin-6-(5H)-one; 4-aryl-3; 4-dihydroquinolin-2-(1H)-one; catalyst; Meldrum's acid; ultrasound irradiation; ZrOCl2 center dot 8H(2)O
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Funding
- Research Council of the University of Bu-Ali Sina
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A convenient, one-pot, solvent-free reaction of amines, aromatic aldehydes, and Meldrum's acid to form 8-aryl-7,8-dihydro-[1,3]dioxolo[4,5-g]quinolin-6-(5H)-one and 4-aryl-3,4-dihydroquinolin-2-(1H)-one in the presence of 10mol% ZrOCl2.8H(2)O under ultrasonic irradiation is described. This new protocol offers several advantages including low catalyst loading, clean reaction, easy workup, use of recyclable and ecofriendly catalyst, short reaction times, good yields, and solvent-free conditions. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) to view the free supplemental file.
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