| NOUN | a ruthenium catalyst | ruthenium catalysts |
NOUN article.ind sg | pl
21 Übersetzungen
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- The reinforcing effect of the basic carrier used in the ruthenium catalyst is similar to the promoter effect of alkali metals used in the iron catalyst.
- In addition, Uemura and Hidai have developed a ruthenium catalyst for the kinetic resolution oxidation of benzylic alcohols, yielding highly enantioenriched alcohols in good yields.
- The ruthenium catalyst has been shown, however, to go through a ruthenium hydride intermediate.
- The first well-defined ruthenium catalyst was reported in 1992.
- This is zero-order with respect to hexacyanoferrate (III) at the onset of the reaction (when its concentration is high and the ruthenium catalyst is quickly regenerated), but changes to first-order when its concentration decreases and the regeneration of catalyst becomes rate-determining.
- Alpha hydroxy acids can be converted into amino acids directly using aqueous ammonia solution, hydrogen gas and a heterogeneous metallic ruthenium catalyst.
- The ruthenium catalyst is functional group tolerant and enables the late stage synthesis of pharmaceutically relevant biaryls.
- They were able to rescue an auxotroph lacking the ability to produce "p"-aminobenzoic acid (PABA), a precursor to folic acid by using a ruthenium catalyst.
- In organic chemistry, the Murai reaction is an organic reaction that uses C-H activation to create a new C-C bond between a terminal or strained internal alkene and an aromatic compound using a ruthenium catalyst.
- The directing group first coordinate to the ruthenium catalyst.
- Dicyclohexylamine may also be prepared by pressure hydrogenation of diphenylamine using a ruthenium catalyst, or by the reaction of cyclohexanone with cyclohexylamine in the presence of a palladium/carbon catalyst under a hydrogen pressure of about 4 mm Hg.
- The key step that the literature points out utilizes DKR to convert the chlorohydrin into the (S)-acetate by means of a lipase and a ruthenium catalyst.
- Methylcyclohexene is also formed as a by-product in the hydrogenation of toluene to methylcyclohexane over ruthenium catalyst, which can lead to catalyst poisoning if the catalyst is insufficiently activated.
- In this reaction an "alkynal" 1 is converted into a cycloalkene 7 with a ruthenium catalyst and the actual condensation takes place with intermediate 3 through 5.
- Among his first tasks there were purification of hydrogen, purification and catalysis of ammonia into hydrogen and nitrogen and a process for using a ruthenium catalyst to produce hydrogen from liquid ammonia for the United States Air Force.
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