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      Síntese do piperonal a partir do óleo essencial de pimenta longa (Piper hispidinervium C. DC.) Translated title: Synthesis of piperonal from essential oil of long-pepper (Piper hispidinervium C. DC.)

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          Abstract

          O óleo essencial de pimenta longa (Piper hispidinervum C. DC) é rico em safrol, tornando-o suscetível à reação de isomerização para a obtenção de cis, trans-isosafrol. O presente artigo apresenta a etapa de eletroxidação dos isômeros cis, trans-isosafrol advindos da isomerização direta do óleo essencial de pimenta longa, apresentando 99,7% de conversão em isosafrol glicol, o qual é sujeito à oxidação com conversão de 99% em piperonal, este apresentando 84,9% de pureza.

          Translated abstract

          The essential oil of long-pepper (Piper hispidinervum C. DC) is rich in safrole, then susceptible to isomerization reaction to obtain cis, trans-isosafrole. In this paper it is presented the eletroxidation of cis, trans-isosafrole from direct isomerization of essential oil of long-pepper, with 99,7% of convertion to isosafrole glicol, that it is react by oxidation to convert 99% into piperonal with 84,9% purity.

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          Electrolytic Reduction of Organic Compounds.

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            Solvent-free conjugated addition of thiols to citral using KF/alumina: preparation of 3-thioorganylcitronellals, potential antimicrobial agents

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              Clean and atom-economic synthesis of octahydroacridines: application to essential oil of citronella

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                Author and article information

                Journal
                aa
                Acta Amazonica
                Acta Amaz.
                Instituto Nacional de Pesquisas da Amazônia (Manaus, AM, Brazil )
                0044-5967
                1809-4392
                June 2012
                : 42
                : 2
                : 275-278
                Affiliations
                [02] orgnameCentro Universitário Luterano de Manaus nazareno.braga@ 123456ulbra.edu.br
                [01] orgnameUniversidade Estadual de Campinas cremasco@ 123456feq.unicamp.br
                Article
                S0044-59672012000200014 S0044-5967(12)04200200014
                59866dc8-8d85-4e6c-9c43-366c59a2cc0a

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 05 January 2011
                : 08 June 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 8, Pages: 4
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Química

                isosafrole,isosafrole glicol,isosafrol,isosafrol glicol,Isomerização,eletroxidação,Isomerization,eletroxidation

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