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Clay Minerals; September 2004; v. 39; no. 3; p. 345-348; DOI: 10.1180/0009855043930139
© 2004 Mineralogical Society of Great Britain and Ireland
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Regular Paper

Iron (III)-doped montmorillonite catalysis of alkenes bearing sulphoxide groups in Diels-Alder reactions

Z. GÜLTEKIN*

Zonguldak Karaelmas Üniversity, Department of Chemistry, 067100, Zonguldak, Turkey

* E-mail: zpgul5{at}hotmail.com

(Received 5 September 2003; revised 10 March 2004)

ABSTRACT

Fe3+-doped K10 montmorillonite combined with 2,6-di-tert-butyl-4-methyl-phenol is a potent catalytic system for trans-2-methylene-1,3-dithiolane 1,3-dioxide as a dienophile. Cycloaddition occurs with cyclopentadiene and furan as a diene at room temperature in short time and with good yields (64% overall).


{07-01}

KEYWORDS: ketene equivalents, [4+2]-cycloadditions, montmorillonite






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