SÍNTESE DE DERIVADOS DO FURFURAL E DA δ-GLUCONOLACTONA COM POTENCIAL ATIVIDADE ANTI-INCRUSTANTE

• Ano de defesa: 2010
• Autor(a) principal: Mbengue, Abdoulaye
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Programa de Pós-graduação em Química Orgânica; Química Orgânica
• Palavras-chave em Português: furfural; Furfural; Gluconolactona; Antiincrustante; Síntese orgânica; Tubulação industrial; Poço de petróleo; Gluconolactone; Antifouling; Organic synthesis; Industrial piping; CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA::QUIMICA ORGANICA
• Link de acesso: https://app.uff.br/riuff/handle/1/19593

Currently, there is a great interest in the research substances for potential inhibition of scale, since depositions of sulfates and carbonates are .causing of many damages to the system of production and decrease of the productivity in the oil wells. In this context, the substance synthesis with scale potential activity has led to an intense research to minimize the scale phenomenon. In such a way, this work describes the synthesis of δ-gluconolactona and furfural derivatives. Hydrazone and esters derivatives with probable capacities incrustation inhibitors had been gotten. The synthesized substances had been:2-hydroxyethyl furan-2-carboxylate (47, 67%), 2-(2-hydroxyethoxy)ethyl furan-2-carboxylate (49, 70%), (E)-2-hydroxyethyl 3-(furan-2-yl)acrylate (48, 63%), (E)-2-(-hydroxyethoxy)ethyl3-(furan-2-yl)acrylate(50,56%); 2S,3R,4S,5S-2,3,4,5,6-pentahydroxyhydrazide, (54, 80%); 2S,3R,4S,5S-2,3,4,5,6-pentahydroxyhydrazide,(54a, 79%); (E)-N-benziylidene-2,3,4,5,6-pentahydroxyhexanehydrazide, (55, 83%);(E)-N-(4-hydroxybenziylidene)-2,3,4,5,6-pentahydroxyhexanehydrazide, (57, 72%);(E)-N-(4-nitrobenziylidene)-2,3,4,5,6-pentahydroxyhexanehydrazide, (56, 69%); (E)-N-(furan-2-ylmethylene)-2,3,4,5,6-pentahydroxyhexanehydrazide, (58, 80%);2,3,4,5,6-pentahydroxy-N`-phenylhexanehydrazide, (66, 75%); 3-methyl-1-phenyl-1H-pyrazol-5-ol, (59, 82%;) 5-chloro-3-methyl-1-phenyl-4-formyl-1-H-pyrazol- (60,90%); 5-chloro-3-methyl-1(4-nitro-phenyl)-4-formyl-1-H-pyrazol, (61, 60%). The analytical study on the activity of inhibition of scale was made with the hydrazid (54) and showed 38, 04% of efficiency of Ba2+inhibition.