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Combined directed ortho-zincation and palladiumcatalyzed strategies: Synthesis of 4,n-dimethoxysubstituted benzo[b]furans Guilarte Moreno, Verónica Castroviejo Fernández, Mª Pilar Álvarez Manuel, Estela Sanz Díez, Roberto benzo[b]furans o-zincation palladium selectivity Química orgánica Chemistry, Organic A new route to regioselectively dialkoxy-functionalized benzo[b]furan derivatives has been developed from 3-halo-2-iodoanisoles bearing an additional methoxy group, which have been accessed through an ortho-zincation/iodination reaction. Two palladiumcatalyzed processes, namely a Sonogashira coupling followed by a tandem hydroxylation/cyclization sequence, give rise to new and interesting dimethoxy-substituted benzo[b]furans. MICINN (CTQ2010-15358) and Junta de Castilla y León (BU021A09 and GR-172) 2016-09-27T07:56:11Z 2016-09-27T07:56:11Z 2011-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1860-5397 http://hdl.handle.net/10259/4242 10.3762/bjoc.7.146 eng Beilstein Journal of Organic Chemistry, 2011. V. 7, p. 1255–1260 Directed aromatic functionalization http://dx.doi.org/10.3762/bjoc.7.146 info:eu-repo/grantAgreement/MICINN/CTQ2010-15358 info:eu-repo/grantAgreement/JCyL/BU021A09 info:eu-repo/grantAgreement/JCyL/GR-172 http://creativecommons.org/licenses/by/2.0/ Este documento está sujeto a una licencia de uso Creative Commons, por la cual está permitido hacer copia, distribuir, comunicar públicamente, remezclar, transformar y crear a partir del material para cualquier finalidad, incluso comercial, siempre que se cite al autor original, se proporcione un enlace a la licencia y se indique si se han realizado cambios info:eu-repo/semantics/openAccess application/pdf Beilstein-Institut