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PD-NANOPARTICLES CONFINED WITHIN HOLLOW POLYMERIC FRAMEWORK AS EFFECTIVE CATALYSTS FOR THE SYNTHESIS OF FINE CHEMICALSстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 ноября 2019 г.
- Авторы: Nemygina N.A., Nikoshvili L.Z., Matveeva V.G., Sulman M.G., Sulman E.M., Kiwi-Minsker L.
- Журнал: Topics in Catalysis
- Том: 59
- Номер: 13
- Год издания: 2016
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 1185
- Последняя страница: 1195
- DOI: 10.1007/s11244-016-0639-2
- Аннотация: Encapsulation of metal nanoclusters in porous solid polymer materials is a promising approach to combine the outstanding properties of both, heterogeneous and homogeneous catalysts. We report heterogeneous nano-engineered catalysts containing Pd-nanoparticles (NPs) confined within highly-porous hollow polymeric framework of hyper cross-linked polystyrene (HPS). HPS with different surface functionalities (amine vs. sulfonate) were used for impregnation by Pd precursors of different nature and followed by a variety of catalyst post-treatments. The catalysts have been tested in two model key reactions for the synthesis of fine chemicals: selective hydrogenation of 2-methyl-3-butyne-2-ol to 2-methyl-3-butene-2-ol (MBE) and Suzuki cross-coupling of 4-bromoanisole with phenylboronic acid. Optimization of the Pd/HPS preparation and reaction conditions allowed attaining high selectivity (~99 %) to target MBE at close to full conversion. For Suzuki cross-coupling more than 90 % yield of coupling product was obtained under mild reaction conditions and the absence of phase transfer agent. Our results demonstrate the potential of HPS as a suitable support for tailoring metal NPs properties and circumvent undesirable metal leaching.
- Добавил в систему: Сульман Михаил Геннадьевич