<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2016000400183</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Synthesis of Xanthene Derivatives using Template-containing Zn/MCM-41 as a Green and Reusable Catalyst; Effect of the Template]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pirouzmand]]></surname>
<given-names><![CDATA[Mahtab]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gharehbaba]]></surname>
<given-names><![CDATA[Adel Mahmoudi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ghasemi]]></surname>
<given-names><![CDATA[Zarrin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Tabriz Faculty of chemistry Department of Inorganic chemistry]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Iran</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Tabriz Faculty of Chemistry Department of Organic and Biochemistry]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Iran</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<volume>60</volume>
<numero>4</numero>
<fpage>183</fpage>
<lpage>187</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2016000400183&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2016000400183&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2016000400183&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Two approaches for metal ion incorporation were employed to introduce Zn into MCM-41; Direct Synthesis (DS) and Wet Impregnation (WI). The ionic template was removed by two different methods: calcination and solvent extraction. For comparison, a series of template-containing mesoporous Zn/MCM-41 was also synthesized without surfactant removal. The catalysts were examined in a three component reaction to afford benzoxanthene derivative. The templae-containing Zn/MCM-41 showed particularly the highest activity. This activity is due to both Lewis acid sites and the ionic template. This catalyst could be reused without loss of its catalytic activity because the organic template does not leach during the reaction. It is also very efficient for the synthesis of a hydroxanthene derivative.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Para introducir Zn en MCM-41 se utilizaron dos estrategias: la síntesis directa (DS) y la impregnación húmeda (WI). Se sintetizaron series de materiales Zn/MCM-41 con plantilla y sin ella. En algunos sólidos la plantilla se eliminó ya sea por calcinación o por extracción por solventes. Los sólidos se examinaron en la reacción de tres componentes para obtener los bensoxantenos. El catalizador con plantilla mostró la mayor actividad, que se explica en términos de la presencia tnato de sitios ácidos de Lewis como de la plantilla iónica. Este catalizador se volvió a utilizar sin pérdida en la actividad catalítica debido a que la plantilla no se lixivia durante la reacción. También se encontró que este catalizador es útil para la síntesis de derivados hidroxantenos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ionic template]]></kwd>
<kwd lng="en"><![CDATA[Zn/MCM-41]]></kwd>
<kwd lng="en"><![CDATA[Solid acid catalyst]]></kwd>
<kwd lng="en"><![CDATA[Xanthene]]></kwd>
<kwd lng="en"><![CDATA[Solvent free]]></kwd>
<kwd lng="es"><![CDATA[plantilla iónica]]></kwd>
<kwd lng="es"><![CDATA[Zn/MCM-41]]></kwd>
<kwd lng="es"><![CDATA[catalizador sólido ácido, xanteno, libre de solvente]]></kwd>
</kwd-group>
</article-meta>
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