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Unsaturated hydrogenation

Carothers returned to Illinois chemistry department that fall to concentrate for two more years on organic chemistry with minors in physical chemistry and mathematics. His thesis topic was related to Adams signature discovery, a catalyst used to hydrogenate unsaturated fats for the shortening and soap industries. Carothers and 11 other collaborators produced 18 papers about the catalyst with Adams. At the same time, Carothers... [Pg.113]

Whilst hydrogenation catalysts based on early transition metals are as active and selective as those based on late transition metals, they are usually not as compatible with functional groups, and this represents the major difficulty for their use in organic synthesis. Nonetheless, titanocene derivatives have been used in industry to hydrogenate unsaturated polymers. [Pg.148]

Figure 9.5 The mechanism of homogeneous hydrogenation unsaturate route versus hydride route . Figure 9.5 The mechanism of homogeneous hydrogenation unsaturate route versus hydride route .
Finely powdered metals, diethyl ether, hydrogen, unsaturated organic compounds, carbide salts, acetylene, alkali metal Oxidizing agents... [Pg.571]

A double bond between two carbon atoms indicates the site, and possibly type, of hydrogen unsaturation. When double bonds are present, the suffix anoic is changed to enoic, dienoic, or trienoic to indicate the number of bonds. The location of the first carbon in the double bond is indicated by a number preceding the systemic name. Under International Union of Pure and Applied Chemistry (IUPAC) convention, stearic, oleic, linoleic, and linolenic acids are called octadecanoic, 9-octadecenoic, 9,12-octadecadienoic, and 9,12,15-octadecatrienoic acids, respectively. [Pg.1566]

Would it be worth paying extra to get the health benefits of a fuUy hydrogenated unsaturated fat compared with a saturated fat Explain. [Pg.560]

Among the various organometallic compounds studied at the Northern Laboratory as homogeneous catalysts for hydrogenating unsaturated fats 4, 6, 8, 9, 10), iron pentacarbonyl has been the best model. It cata-... [Pg.177]

The use of copper chromite at 40°C and atmospheric pressure was not very effective for selective carbonyl group hydrogenation. Unsaturated alcohols were produced from unsaturated aldehydes in low yields at low conversions and not at all from methyl vinyl ketone. 28 With unconjugated, unsaturated aldehydes, copper chromite is effective as a selective hydrogenation catalyst. Hydrogenation of 46 at 140°-160°C and 200 atmospheres gave better than 70% of the diene diol, 47. Increasing the temperature to 240°C resulted in the complete saturation of 46 (Eqn. 18.28). 29... [Pg.459]

J Helminen, U Hotanen, E Paatero, M Hautala, A Karki. Process for hydrogenating unsaturated plant-based compounds and regeneration of used catalyst. WO 97/34917, 1997. [Pg.593]

Catalytic conversion. The most efficient way to prevent the accumulation of impurities that are difficult to remove is chemical conversion. Here we consider only two types of reactions catalytic combustion and hydrogenation. By catalytic combustion, a gaseous impurity is destroyed to COj, SOj, N2 and HjO. For safety reasons, the impurity concentration should be kept well below the lower explosion limit. By catalytic hydrogenation, unsaturated organic components are transformed in species easier to remove. High catalyst selectivity is required. [Pg.266]

Sabatier-Senderens process A method of hydrogenating unsaturated vegetable oils to make margarine, using hydrogen and a nickel catalyst. It is named for the French chemists Paul Sabatier (1854-1941) and Jean-Baptiste Senderens (1856-1937). See also hardening. [Pg.240]

Block copolymers can also be hydrogenated to produce unique products. Hydrogenated triblock copolymers of poly(styrene-co-butadiene-co-styrene) (SBS) are commercially available from the Shell Company under the trade name Kraton G. The middle block is usually a mixed microstructure of poly( 1,2-butadiene) and poly( 1,4-butadiene) units. The resulting product is a hydrogenated unsaturated polymer, which exhibits greater thermal and oxidative properties than the parent SBS triblock. [Pg.524]


See other pages where Unsaturated hydrogenation is mentioned: [Pg.174]    [Pg.9]    [Pg.82]    [Pg.415]    [Pg.307]    [Pg.818]    [Pg.198]    [Pg.307]    [Pg.874]    [Pg.174]    [Pg.120]    [Pg.233]    [Pg.645]    [Pg.210]    [Pg.198]    [Pg.174]    [Pg.186]    [Pg.452]    [Pg.190]    [Pg.261]    [Pg.336]    [Pg.607]    [Pg.915]    [Pg.195]    [Pg.416]    [Pg.166]    [Pg.68]    [Pg.261]    [Pg.893]    [Pg.523]   
See also in sourсe #XX -- [ Pg.317 ]




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Activated hydrogens in unsaturated carbonyl compounds

Addition of hydrogen halide to simple unsaturated hydrocarbons

Addition of hydrogen halide to unsaturated alcohols, ethers, carbonyl compounds, and nitriles

Aldehydes unsaturated, selective hydrogenation

Aldehydes, unsaturated with hydrogen peroxide

Aldehydes, unsaturated, hydrogenation

Asymmetric Hydrogenation of Unsaturated Acids and Esters

Asymmetric Hydrogenation of Unsaturated Alcohols

Asymmetric hydrogenation of unsaturated carboxylic acids

Asymmetric hydrogenation unsaturated acids, esters

Elements of unsaturation hydrogen deficiency

Enantioselective Hydrogenation of Unsaturated Acid and Ester Derivatives

Enantioselective Hydrogenation of Unsaturated Alcohols

Enantioselective Hydrogenation of a,P-Unsaturated Acids or Esters

Hydrogen atoms unsaturated aldehydes

Hydrogen availability unsaturated carbonyl

Hydrogen storage coordinatively unsaturated

Hydrogen storage, MOFs coordinatively unsaturated

Hydrogenation of Cyclopropanes Having Other Unsaturated Groups

Hydrogenation of Multiply Unsaturated Hydrocarbons

Hydrogenation of a, p-unsaturated acids

Hydrogenation of a,/ -unsaturated aldehyde

Hydrogenation of a,/?-unsaturated carbonyl

Hydrogenation of a,P-unsaturated aldehydes

Hydrogenation of unsaturated acids

Hydrogenation of unsaturated acids and esters

Hydrogenation of unsaturated alcohols

Hydrogenation of unsaturated aldehydes

Hydrogenation of unsaturated amino acids

Hydrogenation of unsaturated carbonyl compound

Hydrogenation of unsaturated carbonyls

Hydrogenation of unsaturated carboxylic acid

Hydrogenation of unsaturated fats

Hydrogenation of unsaturated fatty acids

Hydrogenation of unsaturated hydrocarbons

Hydrogenation of unsaturated lipids

Hydrogenation or Other Addition to the Double Bond of Unsaturated 1,3-Oxazines

Hydrogenation reactions unsaturation

Hydrogenation to unsaturated alcohols

Hydrogenation unsaturated alcohols

Hydrogenation unsaturated carbonyl compounds

Hydrogenation unsaturated compounds

Hydrogenation unsaturated organics

Hydrogenation unsaturated phospholipids

Hydrogenation unsaturation

Hydrogenation unsaturation

Hydrogenation, Isomerization, and Isotopic Exchange of Unsaturated Hydrocarbons

Ketones from carbonylation unsaturated selective hydrogenation

Ketones, unsaturated with alkaline hydrogen peroxide

Ketones, unsaturated with hydrogen peroxide

Mono-unsaturated Fatty Esters by Partial Hydrogenation of Natural Oils

Olefin hydrogenation unsaturated alcohols

Ruthenium-catalyzed hydrogenation unsaturated alcohols

Ruthenium-catalyzed hydrogenation unsaturated carboxylic acids

Selective Hydrogenation of Unsaturated Aldehydes and Ketones

Selective Hydrogenation of Unsaturated Ketones

Selective Hydrogenation of a,-Unsaturated Aldehydes

Selective Hydrogenation of a,p-Unsaturated Aldehydes

Selective Hydrogenations in the Presence of Other Unsaturated Functions

Silane, hydridoionic hydrogenation unsaturated carbonyl compounds

Silane, triethylionic hydrogenation reaction with unsaturated esters

Species used for the Hydrogenated Unsaturated Study

The hydrogenation of a, -unsaturated aldehydes over modified metal catalysts

The hydrogenation of a,3-unsaturated

Transfer Hydrogenation of Unsaturated Compounds

Transfer hydrogenation of a,P-unsaturated aldehydes

Transfer hydrogenation of unsaturated

Unconjugated unsaturated hydrogenation

Unsaturaled compounds hydrogenation

Unsaturated acids, hydrogenation

Unsaturated alcohols, asymmetric hydrogenation

Unsaturated aldehydes with active hydrogen

Unsaturated carbonyl compounds hydrogen availability

Unsaturated carboxylic acids asymmetric hydrogenation

Unsaturated carboxylic acids hydrogenation

Unsaturated carboxylic esters with active hydrogen

Unsaturated compounds without added hydrogen

Unsaturated esters, hydrogenation

Unsaturated esters, hydrogenation chemoselective

Unsaturated fatty acids, hydrogenation

Unsaturated hydrocarbons hydrogenation

Unsaturated hydrocarbons multiply, hydrogenation

Unsaturated hydrogenation, homogeneous catalysis

Unsaturated ketones hydrogenation

Unsaturated ketones with active hydrogen

Unsaturated ketones, asymmetric hydrogenation

Unsaturated ketones, hydrogenation chemoselective

Unsaturated ketones, hydrogenation selective

Unsaturated model substrates hydrogenation

Unsaturated nitriles, hydrogenation

Unsaturated nitriles, hydrogenation selective

Unsaturated selective hydrogenation

Unsaturated substrates hydrogenation

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