<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-08-22T20:14:26Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/8613" metadataPrefix="etdms">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/8613</identifier><datestamp>2024-02-08T01:05:24Z</datestamp><setSpec>com_10259_3592</setSpec><setSpec>com_10259_3591</setSpec><setSpec>com_10259.4_106</setSpec><setSpec>com_10259_2604</setSpec><setSpec>com_10259_3924</setSpec><setSpec>com_10259_5086</setSpec><setSpec>col_10259_3930</setSpec><setSpec>col_10259_3925</setSpec></header><metadata><thesis xmlns="http://www.ndltd.org/standards/metadata/etdms/1.0/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ndltd.org/standards/metadata/etdms/1.0/ http://www.ndltd.org/standards/metadata/etdms/1.0/etdms.xsd">
<title>Keto-Enol Tautomerism in Passerini and Ugi Adducts</title>
<creator>Pertejo Fernández, Pablo</creator>
<creator>Sancho Medina, Andrea</creator>
<creator>Hermosilla, Tomás</creator>
<creator>González Saiz, Beatriz</creator>
<creator>Gómez Ayuso, Javier</creator>
<creator>Quesada Pato, Roberto</creator>
<creator>Moreno Mediavilla, Daniel</creator>
<creator>Carreira Barral, Israel</creator>
<creator>García Valverde, María</creator>
<subject>Keto-enol tautomerism</subject>
<subject>Passerini adduct</subject>
<subject>Ugi adduct</subject>
<subject>Lactone</subject>
<subject>Lactame</subject>
<subject>2-hydroxyglutaric acid</subject>
<description>The use of arylglyoxal as starting material in Passerini and Ugi reactions affords βketoamides. This has allowed to study keto-enol tautomerism in these systems and assess the&#xd;
way in which the presence of acyloxy or aminoacyl groups bound to the C2 position affects such&#xd;
tautomerism, and to investigate the reactivity of both the enol and carbonyl forms. In this work we&#xd;
also prove the versatility of the Passerini reaction, since depending on the conditions to which the&#xd;
corresponding adducts are subjected different products of synthetic interest can be obtained.</description>
<date>2024-02-07</date>
<date>2024-02-07</date>
<date>2021-02</date>
<type>info:eu-repo/semantics/article</type>
<identifier>http://hdl.handle.net/10259/8613</identifier>
<identifier>10.3390/molecules26040919</identifier>
<identifier>1420-3049</identifier>
<language>eng</language>
<relation>Molecules. 2021, V. 26, n. 4, 919</relation>
<relation>https://doi.org/10.3390/molecules26040919</relation>
<rights>http://creativecommons.org/licenses/by/4.0/</rights>
<rights>info:eu-repo/semantics/openAccess</rights>
<rights>Atribución 4.0 Internacional</rights>
<publisher>MDPI</publisher>
</thesis></metadata></record></GetRecord></OAI-PMH>