A new thioglycolic ester ??-cyclodextrin/PdCl2 in water

dc.creatorSOUZA, VIVIANE C. de
dc.creatorRAMOS, GABRIEL dos S.
dc.creatorLEITE, JULIANA L.
dc.creatorSANTOS, MAURICIO B. dos
dc.creatorOTUBO, LARISSA
dc.creatorCAMARGO, ZAINE T.
dc.creatorVICTOR, MAURICIO M.
dc.date2023
dc.date2023-04-26T14:23:41Z
dc.date2023-04-26T14:23:41Z
dc.date.accessioned2023-09-28T14:25:51Z
dc.date.available2023-09-28T14:25:51Z
dc.identifier0144-8617
dc.identifierhttp://repositorio.ipen.br/handle/123456789/34008
dc.identifierPart A
dc.identifier301
dc.identifier10.1016/j.carbpol.2022.120271
dc.identifier96.9
dc.identifier97
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9004217
dc.descriptionA 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 ??-cyclodextrin (1-TGA-SH-??-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-??-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.
dc.descriptionCentro Multiusu??rio de Nanotecnologia da UFS (CMNano-UFS)
dc.descriptionCMNano-UFS: 053/2022
dc.format1-10
dc.relationCarbohydrate Polymers
dc.rightsopenAccess
dc.subjectthiols
dc.subjectdextrin
dc.subjectcatalysts
dc.subjectpalladium complexes
dc.subjecthalides
dc.subjectaqueous solutions
dc.subjectaqueous solutions
dc.titleA new thioglycolic ester ??-cyclodextrin/PdCl2 in water
dc.typeArtigo de peri??dico
dc.coverageI


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