<?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>S1870-249X2017000300217</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A Green and Simple Protocol one-pot Biginelli Condensation using Dicalcium Phosphate as Reusable Catalyst]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benzekri]]></surname>
<given-names><![CDATA[Zakaria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benhdidou]]></surname>
<given-names><![CDATA[Redoua]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hamia]]></surname>
<given-names><![CDATA[Sara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrar]]></surname>
<given-names><![CDATA[Houda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Boukhris]]></surname>
<given-names><![CDATA[Said]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sallek]]></surname>
<given-names><![CDATA[Brahim]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hassikou]]></surname>
<given-names><![CDATA[Amina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souizi]]></surname>
<given-names><![CDATA[Abdelaziz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Ibn Tofaïl University . Faculty of Sciences Laboratory of Organic Chemistry, Organometallic and Theoretical]]></institution>
<addr-line><![CDATA[Kenitra ]]></addr-line>
<country>Morocco</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Ibn Tofaïl University F Faculty of Sciences Laboratory of Agricultural Resources and Process Engineering]]></institution>
<addr-line><![CDATA[Kenitra ]]></addr-line>
<country>Morocco</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<volume>61</volume>
<numero>3</numero>
<fpage>217</fpage>
<lpage>221</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2017000300217&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2017000300217&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2017000300217&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract. Dicalcium phosphate dihydrate (DCPD) was used as a green and reusable catalyst in order to synthesized two important categories of heterocycles, 3,4-dihydropyrimidin-2-ones and 3,4-dihydropyrimidin-2-thiones. The advantages of our method are as follow: short reaction times, green process, reduced environmental hazards and high isolated yield of products.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen. Se empleó el fosfato dicálcico dihidratado (DCPD) como catalizador verde y reusable para sintetizar dos importantes categorías de heterociclos, 3,4-dihidropirimidin-2-onas y 3,4-dihidropirimidin-2-tionas. Nuestro método presenta las siguientes ventajas: tiempos de reacción cortos, proceso verde, peligros ambientales reducidos y altos rendimientos de los productos aislados.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Heterogeneous catalysis]]></kwd>
<kwd lng="en"><![CDATA[Green process]]></kwd>
<kwd lng="en"><![CDATA[Dicalcium phosphate]]></kwd>
<kwd lng="en"><![CDATA[3,4-Dihydropyrimidin-2-ones]]></kwd>
<kwd lng="en"><![CDATA[3,4-Dihydropyrimidin-2-thiones]]></kwd>
<kwd lng="es"><![CDATA[Catalizador heterogéneo]]></kwd>
<kwd lng="es"><![CDATA[Proceso verde]]></kwd>
<kwd lng="es"><![CDATA[Fosfato dicálcico]]></kwd>
<kwd lng="es"><![CDATA[3,4-Dihidropirimidin-2-onas]]></kwd>
<kwd lng="es"><![CDATA[3,4-Dihidropirimidin-2-tionas]]></kwd>
</kwd-group>
</article-meta>
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