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One-Pot Synthesis of Xanthones and Dixanthones Using Calix[4]arene Sulfonic Acid Under Solvent Free Condition

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1TitleTitle of DocumentOne-Pot Synthesis of Xanthones and Dixanthones Using Calix[4]arene Sulfonic Acid Under Solvent Free Condition
2CreatorAuthor's name, affiliation, country MOSLEM MANSOUR LAKOURAJ,* HAMED TASHAKKORIAN and MONA ROUHI
Department of Organic Chemistry, Faculty of Chemistry, University of Mazanadaran, Babolsar -47416, Iran
Department of Public Health, Faculty of Paramedical, Babol University of Medical Sciences, I. R. Iran
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Xanthone, Calix[4]arene Sulfonic Acid, Solvent-free, Catalysis, Ring closure, One-pot synthesis
4DescriptionAbstract An efficient and convenient methodology is introduced for preparation of xanthones and dixanthones through direct coupling of salicylic acids and phenols. It is based on the use of POCl3 and catalytic amount of calix[4]arene sulfonic acid as a highly thermally stable and recyclable organocatalyst. A variety of salicylic acids and phenols were treated with POCl3 and the catalyst in the absence of solvent at 80 oC which afforded the corresponding xanthones in good to high yields.
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/cst2013.410
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  2 , Number  (3), (2013)
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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