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Acetates synthesis

Acetic Acid. Acetic acid as a chemical feedstock is manufactured by chemical synthesis. Acetic acid in the form of vinegar (at least 4% acetic acid by law) is produced largely via the oxidation of ethanol by bacteria of the Acetobacter genus.33... [Pg.1342]

Carbon-11 labeled BPA, 4, was synthesized from the corresponding aldehyde, 4-boronophenylacetaldehyde, 9. This boronated aldehyde was prepared from commercially available 4-bromophenylacetic acid, 10, in five synthetic steps (Scheme 1). The synthesis was initiated by the borane reduction8 of acid 10 to the 2-(4-boronophenyl)ethyl alcohol, 11. Alcohol 11 was then carefully oxidized9 to aldehyde 12. In the next step, 4-bromophenylacetaldehyde, 12, was refluxed with ethylene glycol in the presence of a catalytic amount ofp-toluenesulfonic acid to obtain the corresponding acetal 13.10 The boronic acid moiety was introduced at the para position of the phenyl ring by the reaction with butyllithium followed by triisopropyl borate" to obtain the 4-bronophenylacetaldehyde ethylene acetal, 14. In the final step of the synthesis, acetal 14 was treated with concentrated hydrochloric acid in methanol as solvent to obtain the desired precursor, 4-boronophenylacetaldehyde, 9, for the synthesis of carbon-11 labeled BPA, 4, Scheme 2. [Pg.122]

The chemistry of acetate on transition metal surfaces is important for a variety of selective oxidation processes. Methanol and vinyl acetate syntheses are two such important oxidation chemistries where acetate intermediates have been postulated. In VAM synthesis, acetate is a critical intermediate in both VAM formation, as well as in its decomposition to CO2. The latter unselective decarboxylation path becomes important at higher operating temperatures. Understanding the mechanism for decarboxylation and VAM synthesis may ultimately aid in the design of new catalyst formulations on new operating conditions. [Pg.22]

Metabolism of acetate requires activation to acetyl CoA by acetyl CoA synthetase in a reaction similar to that catalyzed by fatty acyl CoA synthetases (Fig. 25.4). In liver, the principle isoform of acetyl CoA synthetase (ACS I) is a cytosolic enzyme that generates acetyl CoA for the cytosolic pathways of cholesterol and fatty acid synthesis. Acetate entry into these pathways is under regulatory control by mechanisms involving cholesterol or insulin. Thus, most of the acetate generated enters the blood. [Pg.461]

Vinyl Acetate synthesis Acetic acid/ethylene/oxygen process... [Pg.570]

Figure 2.7 Capping. Capping is a critical step that can be included after oxidation to cover any 5 -terminal hydroxyl groups that failed to combine with phosphoramidites. Capping protects any unreacted 5 -hydroxyl groups and prevents "deletions" being incorporated into DNA during the synthesis. Acetic anhydride and Al-methylimidazole are the capping reagents added for chemoselective combination with... Figure 2.7 Capping. Capping is a critical step that can be included after oxidation to cover any 5 -terminal hydroxyl groups that failed to combine with phosphoramidites. Capping protects any unreacted 5 -hydroxyl groups and prevents "deletions" being incorporated into DNA during the synthesis. Acetic anhydride and Al-methylimidazole are the capping reagents added for chemoselective combination with...
The final acetate production is a result of ATP synthesis. Acetate is excreted from these organisms and used by Group II sulfate reducers. However, certain groups of organisms can oxidize some of these fermentative products to carbon dioxide, provided acetate is excreted from these organisms. This group is known as complete oxidizers. The acetate oxidation to carbon dioxide involves the TCA cycle, with a series of oxidation-reduction reactions involving electrons. [Pg.459]

Acetals, as aheady pointed out, are stable tetrahedral intermediates and so they can be used as protective groups in organic synthesis. Acetals are stable under basic conditions, so they can be used to protect ketones from a base. An acetal group is hydrolyzed under acidic conditions. Scheme 7.73 gives an example with a dioxolane protecting group. [Pg.268]

We will begin with the carbonylation of Mel which in situ is generated from MeOH for acetic acid production because of its industrial importance. Acetic acid is an important chemical commodity with a wide range of appUcations in organic chemistry. In organic synthesis, acetic acid is mainly used as a raw material for vinyl acetate monomers and acetic anhydride synthesis, as well as a solvent for producing terephthalic acid from xylene via the oxidation process. In 1998 the world s capacity of acetic acid production was approximately 7.8 milUon tons, of which more than 50 % were produced by BP-Amoco and Celanese. [Pg.13]

Acetic acid as a chemical feedstock is manufactured by chemical synthesis. Acetic acid in... [Pg.937]


See other pages where Acetates synthesis is mentioned: [Pg.758]    [Pg.227]    [Pg.283]    [Pg.12]    [Pg.22]    [Pg.22]   
See also in sourсe #XX -- [ Pg.72 ]




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0-Iodo acetals, synthesis

2 ,3 -diisobutyl acetal, synthesis

2-Amino acetal hydrochlorides, synthesis

2-Pyridones synthesis, acetic anhydride

AUyl acetates synthesis

Acetal derivatives synthesis

Acetal formation cyclic acetals synthesis

Acetal ligands organic synthesis

Acetal synthesis using acid-catalyzed

Acetals Acetoacetic ester synthesis

Acetals asymmetric synthesis

Acetals ethers, synthesis

Acetals in Asymmetric Synthesis

Acetals in synthesis

Acetals synthesis, asym

Acetals, cyclic synthesis

Acetals, synthesis

Acetals, synthesis

Acetamide synthesis acetic anhydride

Acetate, diastereoselective synthesis

Acetate, synthesis from carbon dioxide

Acetates, methoxyalcohol protection nucleoside synthesis

Acetates, phenoxyalcohol protection nucleoside synthesis

Acetic Acid Synthesis via Butane or Naphtha Oxidation

Acetic Acid Synthesis via Methanol Carbonylation

Acetic acid anhydride syntheses

Acetic acid industrial synthesis

Acetic acid malonic ester synthesis

Acetic acid synthesis

Acetic acid synthesis, carbonylation

Acetic acid synthesis, carbonylation methanol

Acetic acid synthesis: Monsanto

Acetic acid, acylimino8- -phenylmenthyl ester synthesis

Acetic acid, arylesters synthesis

Acetic acid, diazoesters synthesis

Acetic acid, phenylacyl cyanide synthesis

Acetic acid, phenylacyl cyanide synthesis Schmidt reaction

Acetic acid, phenylacyl cyanide synthesis acyloin coupling reaction

Acetic acid, phenylethyl ester synthesis

Acetic acid, trialkylesters synthesis

Acetic anhydride aspirin synthesis

Acetic anhydride synthesis

Acetic anhydride, trifluororeactions with boron-stabilized carbanions synthesis of alkenes

Acetic propionic acid synthesis

Acetic synthesis

Acetic synthesis

Aceto acetic ester synthesis

Acetoacetate ester synthesis Claisen condensation, ethyl acetate

Acetylenic acetals, synthesis

Aldehydes heterocyclic, synthesis, acetic anhydride

Allyl acetates cyclic ether synthesis

Allyl acetates synthesis

Amide acetals 2-alkoxy-2-dialkylaminocarbonitrile synthesis

Amide acetals ortho acid synthesis

Amide acetals synthesis

Amidinium salts amide acetal synthesis

Ammonium acetate, Davidson oxazole synthesis

Baylis-Hillman acetates synthesis

Bicyclic acetals synthesis

Carbonyl compounds substituted acetic acids, synthesis

Cativa acetic acid syntheses

Cativa process, acetic acid synthesis

Cellulose acetate synthesis procedure

Chemical synthesis cellulose acetate

Chemical synthesis ethyl acetate

Chiral acetals asymmetric synthesis from

Chlorohydrin acetate synthesis

Clostridium thermoaceticum, acetate synthesis

Coupling heterocycle synthesis, palladium®) acetate

Crassin acetate synthesis

Cyclic ketene acetals, synthesis

Deacetoxyalcyonin acetate synthesis

Dienes synthesis, palladium acetate

Dimethyl acetals, synthesis

Distillation-reaction methyl acetate synthesis

Enamines (s. a. Aminomethylene amide acetals, synthesi

Enol-acetate nucleosides synthesis

Enzymatic synthesis allysine ethylene acetal

Erlenmeyer azlactone synthesis lead acetate

Ethyl 2- acetic acid, synthesis

Ethyl acetate synthesis

Furans synthesis, ethyl acetate

Geranyl acetate synthesis

Glycol acetate synthesis

Homogeneous Catalyzed Vinyl Acetate Synthesis

Iminium salts, alkoxymethyleneamide acetal synthesis

Isopropenyl acetate in synthesis of botryodiplodin

Ketene acetals ortho acid synthesis

Ketene acetals synthesis

Lactam acetals enamines, synthesis

Lactam acetals synthesis

Lead acetate ester synthesis

Ligands synthesis phosphine-acetals

Macrocyclic acetals synthesis

Malonic ester synthesis of substituted acetic

Malonic ester synthesis of substituted acetic acids

Mesityl acetic acid, synthesis

Methyl acetate synthesis

Methyl acetate synthesis from dimethyl ether

Methyl acetate, acetoacetate synthesis

Mevinolin synthesis, via chiral acetals

Mixed acetal synthesis

Monsanto process acetic acid synthesis

Natural product synthesis allyl acetate

Neocalliactine acetate, synthesis

Ortho amides amide acetal synthesis

Peroxide synthesis, manganese acetate

Process synthesis methyl acetate production

Propargylic acetals synthesis

Quinol acetates synthesis

Racemic acetic acid, synthesis

Retinol , acetate synthesis

Retinyl acetate synthesis

Selective Acetal Synthesis

Selective synthesis of acetophenones in batch reactors through acetylation with acetic anhydride

Selective synthesis of acetophenones in fixed bed reactors through acetylation with acetic anhydride

Showdomycin acetate, synthesis

Silane, allenylreaction with acetals synthesis

Silyl ketene acetals synthesis

Silylketene acetals synthesis

Spiro-acetals synthesis

Stannylene acetals, synthesis

Substituted acetic acids, synthesis

Synthesis and Polymerizability of Cyclic Acetals

Synthesis from ketene acetals

Synthesis of 5-Decenyl Acetate and Other Pheromone Components

Synthesis of Deacetoxyalcyonin Acetate

Synthesis of Vinyl Acetate (Ethenyl Ethanoate)

Synthesis of cyclic acetals

Synthesis of vinyl acetate

Synthesis unsaturated acetals

Synthesis, of vitamin A acetate

The Monsanto Acetic Acid Synthesis

The Synthesis of Linear Polymeric Esters from Cyclic Trimethylene Acetals and Dibasic Carboxylic Acids

Vinyl acetate synthesis

Vinyl acetate synthesis reaction

Vinyl acetate, synthesis from ethylene

Vinyl cyclic acetal, synthesis

Vitamin A acetate, synthesis

Vitamin Acetate synthesis

Xylose acetal, synthesis

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