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Ultrasound-Promoted Synthesis of 9-Aryl-l,8-dioxo-octahydroxanthenes Using TiO2 as a Cheap and Reusable Catalyst

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1TitleTitle of DocumentUltrasound-Promoted Synthesis of 9-Aryl-l,8-dioxo-octahydroxanthenes Using TiO2 as a Cheap and Reusable Catalyst
2CreatorAuthor's name, affiliation, country SHWETA KUMARI, AMIYA SHEKHAR and DEVENDRA D. PATHAK
Department of Applied Chemistry, Indian School of Mines, Dhanbad-826004, Jharkhand, India
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Aldehydes, Dimedone, Ultrasound, Xanthene derivatives, TiO2
4DescriptionAbstract Reaction of aromatic aldehydes and dimedone was e?ciently promoted by the TiO2 as a catalyst in acetonitrile at room temperature under ultrasonic irradiation to a?ord the corresponding 9-aryl-1,8-dioxo-octahydroxanthene in excellent yields within minutes. However, the same reaction, without catalyst, yielded the corresponding 2,2'-arylmethylenebis(3-hydroxy-5,5-dimethyl-2-cycloexene-1-one). Study with various aldehydes and dimedone reveals that ultrasound and TiO2 plays a key role in the synthesis of 9-aryl-1,8-dioxo-octahydroxanthene.
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier DOI:10.7598/cst2014.783
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  3 , Number  (2), (2014)
12LanuguageEnglish=en en
13RelationSupp.files
14Coverage -
15CopyrightCopyright and permissions
Chemical Science Transactions | Chem Sci Trans | CST | Online Chemistry Journal | Open Access
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