Impureza 2-butylbenzofuran (CAS 4265-4-27) apresenta-se como subproduto heteroaromático originado de vias de síntese alquilantes | com polaridade moderada e solubilidade preferencial em solventes orgânicos apolares. Sua presença pode alterar perfil cromatográfico e afetar rendimento e estabilidade de materiais intermediários. A detecção e quantificação exigem métodos analíticos validados como GC-MS | HPLC-UV e RMN para identificação de picos coeluidos e determinação de limites de aceitação. Estratégias de controle incluem purificação por cromatografia preparativa | destilação fracionada ou recristalização e definição de especificações claras para assegurar conformidade em processos de fabricação e controle de qualidade.
Referências
Amouzegh, Patricia, et al. “Acylation of a Substituted Benzofuran over an HY Zeolite and Its Subsequent Deacylation and Reacylation.â€Â Catalysis Letters, vol. 34, no. 3-4, 1995, pp. 389–94, https://doi.org/10.1007/bf00806889 Oates, John A., et al. “Amiodarone.†New England Journal of Medicine, vol. 316, no. 8, Feb. 1987, pp. 455–66, https://doi.org/10.1056/nejm198702193160807.
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