ZrOCl2 · 8H2O: An Efficient, Ecofriendly, and Recyclable Catalyst for Ultrasound-Accelerated, One-Pot, Solvent-Free Synthesis of 8-Aryl-7,8-dihydro-[1,3]dioxolo[4,5-g]quinolin-6-(5H)-one and 4-Aryl-3,4-dihydroquinolin-2(1 H)-one Derivatives

Autor:	Davood Sheikh, Davood Azarifar
Rok vydání:	2013
Předmět:	Ultrasonic irradiation chemistry.chemical_compound Solvent free chemistry Aryl Organic Chemistry Organic chemistry Amine gas treating Meldrum's acid Recyclable catalyst Ultrasound irradiation Catalysis
Zdroj:	Synthetic Communications. 43:2517-2526
ISSN:	1532-2432 0039-7911
DOI:	10.1080/00397911.2012.718026
Popis:	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 10 mol% ZrOCl2.8H2O 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® to view the free supplemental file.
Databáze:	OpenAIRE
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