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Propanolamine
In organic chemistry, propanolamine can describe any of the following parent compounds: * 2-Amino-1-propanol, the hydrogenated derivative of alanine. *3-Amino-1-propanol, straight-chain and not widely used. *3-Amino-2-propanol ( 1-Aminopropan-2-ol) (isopropanolamines), prepared by addition of amines to one or two equivalents of propylene oxide Propylene oxide is an epoxide with the molecular formula C3H6O. This colourless volatile liquid with an odour similar to ether, is produced on a large scale industrially. Its major application is its use for the production of polyether polyols f .... The propanolamines include many derivatives where the amine is secondary or tertiary. The parent propanolamines are colorless liquids with the formula {{chem2, C3H9NO. References Amino alcohols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propanolamines
Propanolamines are a class of chemical compounds, many of which are pharmaceutical drugs. They are amino alcohols that are derivatives of 1-amino-2-propanol. Propanolamines include: * Acebutolol * Atenolol * Betaxolol * Bisoprolol * Metoprolol * Nadolol * Penbutolol * Phenylpropanolamine * Pindolol * Practolol * Propranolol * Ritodrine * Timolol See also * Propanolamine In organic chemistry, propanolamine can describe any of the following parent compounds: * 2-Amino-1-propanol, the hydrogenated derivative of alanine. *3-Amino-1-propanol, straight-chain and not widely used. *3-Amino-2-propanol ( 1-Aminopropan-2- ... External links * References {{amine-stub Amino alcohols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3-Amino-1-propanol
3-Amino-1-propanol is the organic compound Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon. For example, carbon-co ... with the formula HOCH2CH2CH2NH2. A colorless liquid, the compound is one of the simplest aminopropanols. References {{DEFAULTSORT:Amino-1-propanol, 3- Amino alcohols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Chemistry
Organic chemistry is a subdiscipline within chemistry involving the science, scientific study of the structure, properties, and reactions of organic compounds and organic matter, organic materials, i.e., matter in its various forms that contain carbon atoms.Clayden, J.; Greeves, N. and Warren, S. (2012) ''Organic Chemistry''. Oxford University Press. pp. 1–15. . Study of structure determines their structural formula. Study of properties includes Physical property, physical and Chemical property, chemical properties, and evaluation of Reactivity (chemistry), chemical reactivity to understand their behavior. The study of organic reactions includes the organic synthesis, chemical synthesis of natural products, drugs, and polymers, and study of individual organic molecules in the laboratory and via theoretical (in silico) study. The range of chemicals studied chemistry includes hydrocarbons (compounds containing only carbon and hydrogen) as well as compounds based on carbon, but a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parent Structure
In chemistry, a parent structure is the structure of an unadorned ion or molecule from which derivatives can be visualized. Parent structures underpin systematic nomenclature and facilitate classification. Fundamental parent structures have one or no functional groups and often have various types of symmetry. Benzene () is a chemical itself consisting of a hexagonal ring of carbon atoms with a hydrogen atom attached to each, and is the parent of many derivatives that have substituent atoms or groups replacing one or more of the hydrogens. Some parents are rare or nonexistent themselves, as in the case of porphine, though many simple and complex derivatives are known. File:Benzene circle.png, Benzene is the parent. File:Toluene-vec.svg, Toluene is a derivative of benzene. File:Porphyrin.svg, Porphine is the parent of porphyrins. File:PPIXtransH.png, Protoporphyrin IX is a natural derivative of the parent porphine. File:H2octaethylporphyrin.png, Octaethylporphyrin is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogenated
Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, often an alkene. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures. Hydrogenation reduces double and triple bonds in hydrocarbons. Process Hydrogenation has three components, the unsaturated substrate, the hydrogen (or hydrogen source) and, invariably, a catalyst. The reduction reaction is carried out at different temperatures and pressures depending upon the substrate and the activity of the catalyst. Related or competing reactions The same catalysts and conditions that are used for hydrogenation reactions can also lead to isomerization of the alkenes fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alanine
Alanine (symbol Ala or A), or α-alanine, is an α-amino acid that is used in the biosynthesis of proteins. It contains an amine group and a carboxylic acid group, both attached to the central carbon atom which also carries a methyl group side chain. Consequently it is classified as a non-polar, aliphatic α-amino acid. Under biological conditions, it exists in its zwitterionic form with its amine group protonated (as ) and its carboxyl group deprotonated (as ). It is non-essential to humans as it can be synthesized metabolically and does not need to be present in the diet. It is encoded by all codons starting with G C (GC U, GCC, GC A, and GCG). The L-isomer of alanine (left-handed) is the one that is incorporated into proteins. L-alanine is second only to L-leucine in rate of occurrence, accounting for 7.8% of the primary structure in a sample of 1,150 proteins. The right-handed form, D-alanine, occurs in peptides in some bacterial cell walls (in peptidoglycan) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1-Aminopropan-2-ol
1-Aminopropan-2-ol is the organic compound with the formula . It is an amino alcohol. The term ''isopropanolamine'' may also refer more generally to the additional homologs diisopropanolamine (DIPA) and triisopropanolamine (TIPA). 1-Aminopropan-2-ol is chiral. It can be prepared by the addition of aqueous ammonia to propylene oxide. Biosynthesis (''R'')-1-Aminopropan-2-ol is one of the components incorporated in the biosynthesis of cobalamin. The ''O''-phosphate ester is produced from threonine by the enzyme Threonine-phosphate decarboxylase. Applications The isopropanolamines are used as buffers. They are good solubilizers of oil and fat, so they are used to neutralize fatty acids and sulfonic acid-based surfactants. Racemic 1-aminopropan-2-ol is typically used in metalworking fluid, waterborne coatings, personal care products, and in the production of titanium dioxide and polyurethane Polyurethane (; often abbreviated PUR and PU) is a class of polymers compose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amine
In chemistry, amines (, ) are organic compounds that contain carbon-nitrogen bonds. Amines are formed when one or more hydrogen atoms in ammonia are replaced by alkyl or aryl groups. The nitrogen atom in an amine possesses a lone pair of electrons. Amines can also exist as hetero cyclic compounds. Aniline is the simplest aromatic amine, consisting of a benzene ring bonded to an amino group. Amines are classified into three types: primary (1°), secondary (2°), and tertiary (3°) amines. Primary amines (1°) contain one alkyl or aryl substituent and have the general formula RNH2. Secondary amines (2°) have two alkyl or aryl groups attached to the nitrogen atom, with the general formula R2NH. Tertiary amines (3°) contain three substituent groups bonded to the nitrogen atom, and are represented by the formula R3N. The functional group present in primary amines is called the amino group. Classification of amines Amines can be classified according to the nature and number o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propylene Oxide
Propylene oxide is an epoxide with the molecular formula C3H6O. This colourless volatile liquid with an odour similar to ether, is produced on a large scale industrially. Its major application is its use for the production of polyether polyols for use in making polyurethane plastics. It is a chiral epoxide, although it is commonly used as a racemic mixture. This compound is sometimes called 1,2-propylene oxide to distinguish it from its isomer 1,3-propylene oxide, better known as oxetane. Production Industrial production of propylene oxide starts from propylene. Two general approaches are employed, one involving chlorohydrin formation and the other involving oxidation. In 2005, about half of the world production was through chlorohydrin technology and one half via oxidation routes. The latter approach is growing in importance. Chlorohydrin route The traditional route proceeds via the conversion of propylene to propylene chlorohydrin according to the following simplified sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
