Supercritical Carbon Dioxide as Solvent and Temporary Protecting Group for Rhodium-Catalyzed Hydroaminomethylation
β Scribed by Klaus Wittmann; Wolfgang Wisniewski; Richard Mynott; Walter Leitner; Christian Ludger Kranemann; Thorsten Rische; Peter Eilbracht; Sander Kluwer; Jan Meine Ernsting; Cornelis J. Elsevier
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 110 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0947-6539
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π SIMILAR VOLUMES
Supercritical carbon dioxide was found to be a suitable substitute for halogenated organic solvents in its copolymerization with propylene oxide. The system was studied utilizing a heterogenous catalyst, zinc glutarate. The polymers were analyzed for selectivity in polycarbonate linkages by 'H NMR s
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4-Quinolylmethyl (4-QUI) esters of carboxylic acids and 1-naphthyimethyi (1-NAP) esters of carbonic and carbamic acids are reduced by palladium-catalyzed hydrogenolysis by formate anion. The reaction conditions are compatible with the presence of a benzyl ester and of an alkene double bond.