<?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>S1870-249X2017000100050</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Microwave-assisted synthesis of ethyl 7-chloro-4-oxo-l,4-dihydro-1,8-naphthyridine-3-carboxylate by the Grohe-Heitzer reaction]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leyva-Ramos]]></surname>
<given-names><![CDATA[Socorro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leyva]]></surname>
<given-names><![CDATA[Elisa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardoso-Ortiz]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-López]]></surname>
<given-names><![CDATA[Hiram]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Ciencias Quími ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Zacatecas Unidad Académica de Ciencias Químicas ]]></institution>
<addr-line><![CDATA[ Zacatecas]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2017</year>
</pub-date>
<volume>61</volume>
<numero>1</numero>
<fpage>50</fpage>
<lpage>53</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2017000100050&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2017000100050&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2017000100050&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  A simple and efficient two-step method was implemented for the synthesis of ethyl 7-chloro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate. Comparing with the reported Grohe-Heitzer reaction, the time and the reaction steps have been reduced using microwave irradiation. This compound is an important intermediate for the preparation of naphthyridone derivatives which have received significant attention due to their broad spectrum of biological activity.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se implementó un método simple y eficiente de dos etapas para la síntesis de 7-cloro-4-oxo-1,4-dihidro-1,8-naftiridin-3-carboxilato de etilo. Comparado con la reacción de Grohe-Heitzer reportada, el tiempo y los pasos de reacción se redujeron empleando irradiación de microondas. Este compuesto es un importante intermediario para la preparación de derivados de naftiridonas, los cuáles han recibido una considerable atención debido a su amplio espectro de actividad biológica.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Reacción de Grohe-Heitzer]]></kwd>
<kwd lng="es"><![CDATA[1,8-naftiridona]]></kwd>
<kwd lng="es"><![CDATA[irradiación de microondas]]></kwd>
<kwd lng="es"><![CDATA[equilibrio tautomérico]]></kwd>
<kwd lng="en"><![CDATA[Grohe-Heitzer reaction]]></kwd>
<kwd lng="en"><![CDATA[1,8-naphtyridone]]></kwd>
<kwd lng="en"><![CDATA[microwave irradiation]]></kwd>
<kwd lng="en"><![CDATA[tautomeric equilibrium]]></kwd>
</kwd-group>
</article-meta>
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