A new thioglycolic ester β-cyclodextrin/PdCl2 in water
Carregando...
Data
Data de publicação
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Carbohydrate Polymers
Exportar
Resumo
A novel, easily prepared and accessible water-soluble supramolecular catalyst for the Suzuki-Miyaura Csingle bondC coupling reaction was synthesized and characterized by FTIR, NMR, XRD, SEM, and HR-TEM. An inexpensive Pd(II) source added to the resulting aqueous solution of thioglycolic ester β-cyclodextrin (1-TGA-SH-β-CD/PdCl2) showed Pd nanoclusters and efficient catalytic activity for Suzuki-Miyaura Csingle bondC coupling reactions of aryl halides with aryl boronic acids, employing K2CO3 as base, in an environmentally benign aqueous solution prepared in open flasks. Organic aryl halides including chlorides can produce moderate to excellent yields with aryl boronic acids and a small catalytic amount (0.01 mol%) of 1-TGA-SH-β-CD/PdCl2. This hydro-soluble catalyst stock solution was stable for long periods (more than three months) and could be reused in two runs until showing loss of catalytic activity. Some experiments to understand the mechanism were performed, with the results suggesting incorporation of aryl halide in the catalytic cavity.
Como referenciar
SOUZA, VIVIANE C. de; RAMOS, GABRIEL dos S.; LEITE, JULIANA L.; SANTOS, MAURICIO B. dos; OTUBO, LARISSA; CAMARGO, ZAINE T.; VICTOR, MAURICIO M. A new thioglycolic ester β-cyclodextrin/PdCl2 in water: an accessible catalyst for the Suzuki-Miyaura coupling reaction. Carbohydrate Polymers, v. 301, n. Part A, p. 1-10, 2023. DOI: 10.1016/j.carbpol.2022.120271. Disponível em: http://repositorio.ipen.br/handle/123456789/34008. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.