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Ketones hydrogen

Aldehyde or ketone Halogen a Halo aldehyde or ketone Hydrogen halide... [Pg.757]

Chlorosulfonic acid Saturated and unsaturated acids, acid anhydrides, nitriles, acrolein, alcohols, ammonia, esters, HCl, HF, ketones, hydrogen peroxide, metal powders, nitric acid, organic materials, water... [Pg.1207]

Hydroxyalkyl hydroperoxides from cycHc ketones (1), where X = OH, R =, H and R, R = alkylene, apparentiy exist in solution as equihbrium mixtures of the cycHc ketone, hydrogen peroxide, and other peroxides, eg, the dihydroperoxide (1) in which X = OOH, and dialkyl peroxides (2) where X = OH and Y = OH or OOH. Due to the existence of this equihbrium, the latter two dialkyl peroxides react as mixtures of monomeric hydroperoxides in solution. [Pg.112]

A great deal of control can be exerted over the stereochemistry of ketone hydrogenation, and it serves as a complement to other reducing systems (76). [Pg.72]

Reports of reductive elimination from early transition metals are uncommon. However, Bullock and co-workers have reported the elimination of IMes from [WCp(IMes)(CO)2][B(C Fj) J to form the 2-H-imidazolium salt, during ketone hydrogenation probably via a form of reductive elimination process [38]. [Pg.306]

The butyl alcohol is pumped from storage to a steam-heated preheater and then to a vaporiser heated by the reaction products. The vapour leaving the vaporiser is heated to its reaction temperature by flue gases which have previously been used as reactor heating medium. The superheated butyl alcohol is fed to the reaction system at 400°C to 500°C where 90 per cent is converted on a zinc oxide-brass catalyst to methyl ethyl ketone, hydrogen and other reaction products. The reaction products may be treated in one of the following ways ... [Pg.971]

Prevost, M., and R. Bugarel, 1981. Theoretical and technical aspects of a chemical heat pump Secondary alcohol-ketone-hydrogen system, Proc. 2nd World Cong. Chem. Eng.,... [Pg.390]

The catalysts were obtained from their respective commercial sources and for some of these tests they were subjected to RPT by heating them to 400°C for 2 hours under a flow of hydrogen. The enantioselective ketone hydrogenations were carried out in a 50 ml stainless steel autoclave stirred with a magnetic stirring bar with 10 to 30 mg of catalyst, 10 to 30 mg of MeOHCd, 5 ml substrate and 20 ml AcOH at 60 bar and 25°C for 30 minutes. The crotonic acid hydrogenations were carried out in an ethanolic solution at atmospheric pressure and room temperature stirred at 2000 rpm with a hollow shaft bubbling stirrer. [Pg.558]

The catalytic ketone hydrogenation reaction is accelerated by addition of KOH. In the presence of 25 equiv. KOH, 1 mol.% of the molybdenum complex completely hydrogenated acetophenone overnight in refluxing 2-propanol... [Pg.178]

Recently, several catalysts based on ligands containing an NH2 or NH grouping within the phosphine ligand, such as PI12PCH2CH2NH2, have been shown to have considerable activity and chemoselectivity for ketone hydrogenation [54—56]. [Pg.434]

Basic Principles of Ketone Hydrogenation on Rhodium Catalysts... [Pg.1166]

Earlier studies conducted by Tani had confirmed the role of the basicity of the ligand in terms of activity, upon using dicyclohexyl, diethyl and diisopropyl modified DIOP 2, 3, and 4 (Scheme 33.2) for ketone hydrogenation [11], Details of their use in KPL hydrogenation were published initially by Yamamoto, but the ee-values obtained were not very high (e.g., 45% with 2) [12]. [Pg.1167]

Scheme 36.1 Library approach in enantioselective ketone hydrogenation. Scheme 36.1 Library approach in enantioselective ketone hydrogenation.
Great care must be taken not to generalize these effects, as the addition of primary diamines to ruthenium bisphosphine complexes generates a very active catalyst for ketone hydrogenation after the addition of base (see Chapter 32). [Pg.1504]

Hydrogenation of aldehydes and ketones Hydrogenation of miscellaneous organic substrates... [Pg.6]


See other pages where Ketones hydrogen is mentioned: [Pg.628]    [Pg.717]    [Pg.719]    [Pg.719]    [Pg.628]    [Pg.717]    [Pg.719]    [Pg.719]    [Pg.185]    [Pg.380]    [Pg.71]    [Pg.121]    [Pg.57]    [Pg.59]    [Pg.182]    [Pg.195]    [Pg.247]    [Pg.264]    [Pg.415]    [Pg.431]    [Pg.1000]    [Pg.1156]    [Pg.1251]    [Pg.1407]    [Pg.101]    [Pg.181]    [Pg.8]    [Pg.1109]   
See also in sourсe #XX -- [ Pg.911 ]




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Active hydrogen compounds ketones

Acyclic ketones, hydrogenation

Adsorption ketone hydrogenation

Alkynyl ketones, hydrogenation

Amino ketones, diastereoselective hydrogenation

Aqueous Two-Phase Hydrogenation of Aldehydes and Ketones

Aromatic ketones asymmetric transfer hydrogenation

Aromatic ketones, asymmetric hydrogenation

Aromatic ketones, hydrogenation

Aryl ketones hydrogenation

Aryl/alkyl ketones hydrogenation

Aryl/alkyl ketones transfer hydrogenation

Asymmetric Hydrogenations of Functionalized Ketones

Asymmetric Transfer Hydrogenation of Ketones and Imines

Asymmetric hydrogenation functionalized ketones

Asymmetric hydrogenation of ketones

Asymmetric hydrogenation simple ketones

Asymmetric induction ketone hydrogenation

Asymmetric transfer hydrogenation of ketones

Biradicals ketones, hydrogen abstraction

Catalytic Hydrogenation of Ketones with Anionic Metal Hydrides

Catalytic hydrogenation of aldehydes and ketones

Catalytic hydrogenation of ketones and imines

Chemoselectivity ketone hydrogenation

Diastereoselective hydrogenation ketones

Disproportionation ketones, hydrogen abstraction

Enantioselective hydrogenation aromatic ketones

Enantioselective hydrogenation functionalized ketones

Enantioselective hydrogenation of ketones

Enantioselective ketones reduction, hydrogenation

Epoxy ketones, hydrogenation

Ethanol ketone hydrogenation

Ethyleneketones ketones, hydrogenation

Excited-state reactions ketones, hydrogen abstraction

Fluorinated ketones, hydrogenation

Functionalized ketones, hydrogenation

Homogeneous Catalysts and Ketone Hydrogenation

Homogeneous catalytic hydrogenation olefinic ketones

Homogeneous hydrogenation ketones

Hydrogen Abstraction by Ketones

Hydrogen Abstraction by Ketones (Type Cleavage)

Hydrogen abstraction, ketones basics

Hydrogen abstraction, ketones biradical behavior

Hydrogen abstraction, ketones biradical rearrangements

Hydrogen abstraction, ketones charge transfer

Hydrogen abstraction, ketones competing reactions

Hydrogen abstraction, ketones conformational effects

Hydrogen abstraction, ketones cyclic systems

Hydrogen abstraction, ketones diketones

Hydrogen abstraction, ketones excited states

Hydrogen abstraction, ketones mechanism

Hydrogen abstraction, ketones orientation

Hydrogen abstraction, ketones proton transfer

Hydrogen abstraction, ketones quantum efficiency

Hydrogen abstraction, ketones reactivity

Hydrogen abstraction, ketones reactivity relationships

Hydrogen abstraction, ketones rearrangements

Hydrogen abstraction, ketones regioselectivity

Hydrogen abstraction, ketones solvent effects

Hydrogen abstraction, ketones stereoselectivity

Hydrogen abstraction, ketones study

Hydrogen abstraction, ketones substituent effects

Hydrogen abstraction, ketones triplet biradicals

Hydrogen bonding ketones

Hydrogen bromide with diazo ketones

Hydrogen chloride ketones

Hydrogen chloride with diazo ketones

Hydrogen cyanide ketones

Hydrogen iodide aromatic ketones

Hydrogen peroxide ketones

Hydrogen peroxide oxidation of ketones

Hydrogen peroxide with ketones

Hydrogen reaction with ketones

Hydrogen transfer reduction ketones

Hydrogen transfer reduction of ketones

Hydrogen transfer to ketones

Hydrogenation amino ketones

Hydrogenation chiral amines from ketones

Hydrogenation cyclic ketone

Hydrogenation ketones

Hydrogenation ketones

Hydrogenation ketones and aldehydes

Hydrogenation ketones, aliphatic

Hydrogenation of /-amino ketones

Hydrogenation of Alkenes and Ketones

Hydrogenation of Alkenes, Ketones, and Imines

Hydrogenation of Ketones and Imines

Hydrogenation of Olefins and Ketones

Hydrogenation of a-amino ketones

Hydrogenation of aldehydes and ketones

Hydrogenation of aromatic ketones

Hydrogenation of functionalized ketones

Hydrogenation of ketones

Hydrogenation of simple ketones

Hydrogenation of unfunctionalized ketones

Hydrogenation oximino ketones

Hydrogenation reactions ketones

Hydrogenation, catalytic epoxy-ketones

Ionic Hydrogenation of Ketones Using Metal Hydrides and Added Acid

Iridium ketone hydrogenation

Iridium-catalyzed hydrogenation ketones

Ketone a hydrogen

Ketone hydrogen added

Ketone hydrogenation chiral alcohols

Ketone hydrogenation optically active alcohols

Ketone hydrogenation ruthenium-catalyzed

Ketone hydrogenation substrates

Ketone hydrogenation, asymmetric catalysis

Ketone, methyl vinyl transfer hydrogenation

Ketones Noyori catalytic asymmetric hydrogenation

Ketones a hydrogenation

Ketones asymmetric homogeneous hydrogenation

Ketones asymmetric hydrogenation

Ketones asymmetric hydrogenation, molecular

Ketones asymmetric transfer hydrogenation

Ketones carbon-hydrogen bonds

Ketones catalytic hydrogenation

Ketones enantioselective hydrogenation

Ketones from carbonylation unsaturated selective hydrogenation

Ketones hydrogen abstraction

Ketones hydrogen fluoride

Ketones hydrogen transfer

Ketones hydrogen transfer reactions

Ketones hydrogenation, homogeneous catalysis

Ketones ionic hydrogenation

Ketones reaction with hydrogen sulfide

Ketones transfer hydrogenation

Ketones, biphasic hydrogenation

Ketones, cyclopropyl phenyl hydrogen transfer

Ketones, methyl vinyl hydrogenation

Ketones, unsaturated with alkaline hydrogen peroxide

Ketones, unsaturated with hydrogen peroxide

Olefin hydrogenation ketones

Outer-Sphere Mechanism for the Hydrogenation of Ketones and Imines

Oxidative ketones, asymmetric hydrogenation

PHOTOCHEMISTRY OF ALIPHATIC KETONES WITH A HYDROGEN ATOM IN THE y POSITION

Platinum ketone hydrogenation

Platinum-rhodium oxide, hydrogenation ketones

Reaction L.—(a) Addition of Hydrogen Cyanide to Aldehydes or Ketones

Replacement of hydrogen by halogen in aldehydes and ketones

Rhodium catalysts hydrogenation, ketones

Rhodium-Catalyzed Enantioselective Hydrogenation of Functionalized Ketones

Ruthenium ketone hydrogenation

Ruthenium-Catalyzed Asymmetric Hydrogenation of Aromatic Ketones

Selective Hydrogenation of Unsaturated Aldehydes and Ketones

Selective Hydrogenation of Unsaturated Ketones

Stereoselective synthesis ketone hydrogenation

Steroids, hydrogenation ketones

Transfer Hydrogenation of Ketones and Imines

Transfer hydrogenation aromatic ketones

Transfer hydrogenation ketone substrates

Transfer hydrogenation of ketones

Unfunctionalized ketones, asymmetric hydrogenation

Unsaturated ketones hydrogenation

Unsaturated ketones with active hydrogen

Unsaturated ketones, asymmetric hydrogenation

Unsaturated ketones, hydrogenation chemoselective

Unsaturated ketones, hydrogenation selective

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