Preparation of organo palladium sols from palladium complexes in various alcohols
โ Scribed by Kunio Esumi; Tetsuyuki Itakura; Kanjiro Torigoe
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 362 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0927-7757
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โฆ Synopsis
Organ0 palladium sols were prepared from palladium complexes in various alcohols in the presence of polyvinylpyrrolidone. Uniform palladium particles ranging in size between 2 and 4 nm were obtained in 1-pentanol, a-phenylethyl alcohol, and j-phenylethyl alcohol solutions of palladium acetate. In contrast, Pd(acac), (acac, 2,4_pentanedionato) yielded particles of wider size distribution compared to those from palladium acetate.
๐ SIMILAR VOLUMES
The in situ prepared three component system Pd(OAc) 2 , 1,3-dialkylbenzimidazolium halides (1a-e) and t-BuOK catalyses quantitatively the Suzuki cross-coupling of deactivated aryl chloride substrates. 1,3-Dialkylbenzimidazolium salts (1a-e) were characterized by conventional spectroscopic methods an
Gelular poly(vinylpyridine)-supported palladium catalysts and their analogue have been prepared, and used to study the mechanism of hydrogenation and the solvent effect on catalytic activities. When the polymer-supported Pd catalyst was used in the hydrogenation of cyclohexene, an induction period i