Microwave- and ultrasound-assisted Suzuki–Miyaura cross-coupling reactions catalyzed by Pd/PVP |
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Authors: | Andr a Luzia F. de Souza, Lucyane C. da Silva, Bianca L. Oliveira,O.A.C. Antunes |
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Affiliation: | aInstituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos 149, CT Bloco A 641, Cidade Universitária, Rio de Janeiro RJ 21941-909, Brazil |
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Abstract: | Suzuki–Miyaura reactions using Pd/PVP as a catalyst source were carried out in water–ethanol solution. Under MW, sonication or thermal condition yields were very similar, from moderate to very good, in a variety of examples. However, TOFs were very different, 750/h under MW, 250/h under sonication, and 28/h under thermal conditions. Studies carried out under sonication showed that the whole system after product extraction can be re-used at least twice without any noticeable loss of yield. |
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