Highly Active, Immobilized Ruthenium Catalysts for Oxidation of Alcohols to Aldehydes and Ketones. Preparation and Use in Both Batch and Flow Systems

• Published in: Journal of the American Chemical Society Vol. 127; no. 25; pp. 9251 - 9254
• Main Authors: Kobayashi, Shū, Miyamura, Hiroyuki, Akiyama, Ryo, Ishida, Tasuku
• Format: Journal Article
• Language: English
• Published: WASHINGTON American Chemical Society 29.06.2005; Amer Chemical Soc
• Subjects: Alcohols - chemistry; Aldehydes - chemical synthesis; Catalysis; Catalysts: preparations and properties; Chemistry; Chemistry, Multidisciplinary; Exact sciences and technology; General and physical chemistry; Ketones - chemical synthesis; Molecular Structure; Organometallic Compounds - chemistry; Oxidation-Reduction; Physical Sciences; Ruthenium - chemistry; Science & Technology; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; PALLADIUM; PERRUTHENATE; REAGENTS; LEWIS-ACID; RECOVERABLE CATALYSTS; OXIDANT; HYDROXYAPATITE; TPAP; EFFICIENT; Catalytic reaction; Tertiary phosphine; Catalyst selectivity; Organic ligand; Alcohol; Transition metal Complexes; Experimental study; Supported catalyst; Molecular sieve; Oxidative degradation; Ruthenium Complexes; Platinoid Complexes; Chloro complex; Microencapsulation; Catalyst activity
• ISSN: 0002-7863; 1520-5126
• DOI: 10.1021/ja051246c

A novel, highly active immobilized ruthenium catalyst, which can be successfully used in oxidation of alcohols to aldehydes and ketones, has been developed. In contrast to most immobilized catalysts, the Ru catalyst has activity that is higher than that of the original nonimmobilized catalyst. In a batch system, the Ru catalyst was recovered and reused several times without loss of activity. The catalyst was also applied to a flow system, in which excellent conversions and yields were demonstrated. No leaching of Ru was observed in both cases.