<?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>2026-06-19T12:54:01Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/6093" metadataPrefix="etdms">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/6093</identifier><datestamp>2022-11-11T12:52:48Z</datestamp><setSpec>com_10259_3593</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259_3594</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>From Propargylic Alcohols to Substituted Thiochromenes: gem- Disubstituent Effect in Intramolecular Alkyne Iodo/hydroarylation</title>
<creator>Velasco Pérez, Noelia</creator>
<creator>Suárez, Anisley</creator>
<creator>Martínez Lara, Fernando</creator>
<creator>Fernández Rodríguez, Manuel A.</creator>
<creator>Sanz Díez, Roberto</creator>
<creator>Suarez Pantiga, Samuel</creator>
<subject>Sulfides</subject>
<subject>Alcohols</subject>
<subject>Column chromatography</subject>
<subject>Cyclization</subject>
<subject>Propargyls</subject>
<description>This work describes the 6-endo-dig cyclization of Saryl propargyl sulfides to afford 2H-thiochromenes. The substitution at the propargylic position plays a crucial role in allowing&#xd;
intramolecular silver-catalyzed alkyne hydroarylation and Niodosuccinimide-promoted iodoarylation. Additionally, a PTSAcatalyzed thiolation reaction of propargylic alcohols was developed&#xd;
to synthesize the required tertiary S-aryl propargyl ethers. The&#xd;
applicability of merging these two methods is demonstrated by&#xd;
synthesizing the retinoic acid receptor antagonist AGN194310.</description>
<date>2021-11-04</date>
<date>2021-11-04</date>
<date>2021-04</date>
<type>info:eu-repo/semantics/article</type>
<identifier>0022-3263</identifier>
<identifier>http://hdl.handle.net/10259/6093</identifier>
<identifier>10.1021/acs.joc.1c00333</identifier>
<identifier>1520-6904</identifier>
<language>eng</language>
<relation>The Journal of Organic Chemistry. 2021, V. 86, n. 10, 7078−7091</relation>
<relation>https://doi.org/10.1021/acs.joc.1c00333</relation>
<relation>info:eu-repo/grantAgreement/Junta de Castilla y León//BU291P18</relation>
<relation>info:eu-repo/grantAgreement/Junta de Castilla y León//BU049P20</relation>
<relation>info:eu-repo/grantAgreement/Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona//LCF%2FPR%2FPR18%2F51130007 (CAIXA-UBU001)</relation>
<relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2016-75023-C2-1-P/ES/DESARROLLO DE NUEVAS METODOLOGIAS SINTETICAS. APLICACION A LA PREPARACION DE MOLECULAS DE INTERES Y A LA VALORIZACION DE LA LIGNINA</relation>
<rights>http://creativecommons.org/licenses/by/4.0/</rights>
<rights>info:eu-repo/semantics/openAccess</rights>
<rights>Atribución 4.0 Internacional</rights>
<publisher>American Chemical Society</publisher>
</thesis></metadata></record></GetRecord></OAI-PMH>