<?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>2026-04-21T11:11:28Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/4925" metadataPrefix="oai_dc">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/4925</identifier><datestamp>2022-12-20T11:08:25Z</datestamp><setSpec>com_10259_3593</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259_3594</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
<dc:title>1,5-O → N Carbamoyl Snieckus–Fries-Type Rearrangement</dc:title>
<dc:creator>Feberero, Claudia</dc:creator>
<dc:creator>Suarez Pantiga, Samuel</dc:creator>
<dc:creator>Cabello Fernández, Zaida</dc:creator>
<dc:creator>Sanz Díez, Roberto</dc:creator>
<dc:subject>Química orgánica</dc:subject>
<dc:subject>Chemistry, Organic</dc:subject>
<dc:description>The reaction of o-lithiated O-aryl N,N-diethylcarbamates with (hetero)aromatic nitriles gives rise to functionalized salicylidene urea derivatives in high yields through a new 1,5-O → N carbamoyl migration. This Snieckus–Fries-type rearrangement nicely complements previously known O → C and O → O related shifts. In addition, when dimethylmalononitrile is used as the electrophilic partner, the carbamoyl shift is preferred over the expected transnitrilation reaction.</dc:description>
<dc:description>Junta de Castilla y León and FEDER&#xd;
(BU076U16) and Ministerio de Economía&#xd;
y Competitividad&#xd;
(MINECO) and FEDER (CTQ2016-48937-C2-1-P)</dc:description>
<dc:date>2018-09-07T10:42:31Z</dc:date>
<dc:date>2019-04-20T02:45:07Z</dc:date>
<dc:date>2018-04</dc:date>
<dc:type>info:eu-repo/semantics/article</dc:type>
<dc:type>info:eu-repo/semantics/acceptedVersion</dc:type>
<dc:identifier>1523-7060</dc:identifier>
<dc:identifier>http://hdl.handle.net/10259/4925</dc:identifier>
<dc:identifier>10.1021/acs.orglett.8b00782</dc:identifier>
<dc:language>eng</dc:language>
<dc:relation>Organic Letters. 2018, V. 20, n. 8, p. 2437–2440</dc:relation>
<dc:relation>https://doi.org/10.1021/acs.orglett.8b00782</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/JCyL/BU076U16</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/MINECO/CTQ2016-48937-C2-1-P</dc:relation>
<dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
<dc:format>application/pdf</dc:format>
<dc:publisher>American Chemical Society</dc:publisher>
</oai_dc:dc></metadata></record></GetRecord></OAI-PMH>