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3-Oxetanone
3-Oxetanone, also called oxetan-3-one or 1,3-epoxy-2-propanone, is a chemical compound with formula C3H4O2. It is the ketone of oxetane, and an isomer of β-propiolactone. 3-Oxetanone is a liquid at room temperature, that boils at 140 °C. It is a specialty chemical,Synthonix Corp.''3-Oxetanone'' product sheet. Accessed on 2009-07-10.SpiroChem AG''Oxetan-3-one'' Product Sheet - 2011-07-07 used for research in the synthesis of other oxetanes of pharmacological interest. Wuitschik, G.; Rogers-Evans, M.; Müller, K.; Fischer, H.; Wagner, B.; Schuler, F.; Polonchuk, L.; Carreira, E. M., Oxetanes as promising modules in drug discovery. Angew. Chem. Int. Ed. 2006, volume 45, issue 46, pp. 7736-7739. Oxetan-3-one also has been the object of theoretical studies.George M. Breuer, Roger S. Lewis, and Edward K. C. Lee (1975), ''Unimolecular Decomposition Rates of Cyclobutanone, 3-Oxetanone, and Perfluorocyclobutanone. An RRKM Calculation of Internally Converted Hot Molecules'' Jour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxetane
Oxetane, or 1,3-propylene oxide, is a heterocyclic organic compound with the molecular formula , having a four-membered ring with three carbon atoms and one oxygen atom. The term "an oxetane" or "oxetanes" refer to any organic compound containing the oxetane ring. Production A typical well-known method of preparation is the reaction of potassium hydroxide with 3-chloropropyl acetate at 150 °C: : Yield of oxetane made this way is c. 40%, as the synthesis can lead to a variety of by-products. Another possible reaction to form an oxetane ring is the Paternò–Büchi reaction. The oxetane ring can also be formed through diol cyclization as well as through decarboxylation of a six-membered cyclic carbonate. Taxol Paclitaxel (Taxol) is an example of a natural product A natural product is a natural compound or substance produced by a living organism—that is, found in nature. In the broadest sense, natural products include any substance produced by life. Natural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beta-Propiolactone
β-Propiolactone is an organic compound of the lactone family, with a four-membered ring. It is a colorless liquid with a slightly sweet odor, highly soluble in water and miscible with ethanol, acetone, diethyl ether and chloroform.''Merck Index'', 12th Edition, entry 8005. The word propiolactone usually refers to this compound, although it may also refer to α-propiolactone. Production β-Propiolactone is prepared industrially by the reaction of formaldehyde and ethenone in the presence of aluminium- or zinc chloride as catalyst: In the research laboratory, propiolactones have been produced by the carbonylation of epoxides. Reactions and applications It reacts with many nucleophiles in a ring-opening reactions. With water hydrolysis occurs to produce 3-hydroxypropionic acid (hydracryclic acid). Ammonia gives the β-alanine, which is a commercial process. Propiolactone was once widely produced as an intermediate in the production of acrylic acid and its esters. That ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemical reaction, which may involve interactions with other substances. In this process, bonds between atoms may be broken and/or new bonds formed. There are four major types of compounds, distinguished by how the constituent atoms are bonded together. Molecular compounds are held together by covalent bonds; ionic compounds are held together by ionic bonds; intermetallic compounds are held together by metallic bonds; coordination complexes are held together by coordinate covalent bonds. Non-stoichiometric compounds form a disputed marginal case. A chemical formula specifies the number of atoms of each element in a compound molecule, using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ketone
In organic chemistry, a ketone is a functional group with the structure R–C(=O)–R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group –C(=O)– (which contains a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' is methyl), with the formula . Many ketones are of great importance in biology and in industry. Examples include many sugars (ketoses), many steroids (e.g., testosterone), and the solvent acetone. Nomenclature and etymology The word ''ketone'' is derived from ''Aketon'', an old German word for ''acetone''. According to the rules of IUPAC nomenclature, ketone names are derived by changing the suffix ''-ane'' of the parent alkane to ''-anone''. Typically, the position of the carbonyl group is denoted by a number, but traditional nonsystematic names are still generally used for the most important ketones, for example acetone and benzophenone. These nonsystematic names are considered re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isomer
In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers. Isomers do not necessarily share similar chemical or physical properties. Two main forms of isomerism are structural or constitutional isomerism, in which ''bonds'' between the atoms differ; and stereoisomerism or spatial isomerism, in which the bonds are the same but the ''relative positions'' of the atoms differ. Isomeric relationships form a hierarchy. Two chemicals might be the same constitutional isomer, but upon deeper analysis be stereoisomers of each other. Two molecules that are the same stereoisomer as each other might be in different conformational forms or be different isotopologues. The depth of analysis depends on the field of study or the chemical and physical properties of interest. The English word "isomer" () is a back ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specialty Chemical
Speciality chemicals (also called specialties or effect chemicals) are particular chemical products which provide a wide variety of effects on which many other industry sectors rely. Some of the categories of speciality chemicals are adhesives, agrichemicals, cleaning materials, colors, cosmetic additives, construction chemicals, elastomers, flavors, food additives, fragrances, industrial gases, lubricants, paints, polymers, surfactants, and textile auxiliaries. Other industrial sectors such as Automobile industry, automotive, Aerospace manufacturer, aerospace, Food manufacturing, food, cosmetics, agriculture, Manufacturing industry, manufacturing, and textiles are highly dependent on such products. Speciality chemicals are materials used on the basis of their performance or function. Consequently, in addition to "effect" chemicals they are sometimes referred to as "performance" chemicals or "formulation" chemicals. They can be unique molecules or mixtures of molecules known as fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malonic Anhydride
Malonic anhydride or oxetane-2,4-dione is an organic compound with chemical formula C3H2O3 or CH2(CO)2O. It can be viewed as the anhydride of malonic acid, or a double ketone of oxetane. Malonic anhydride was first synthesized in 1988 by ozonolysis of diketene. Some derivatives, such as 3,3-dimethyl-oxetane-2,4-dione, are known.Charles L. Perrin, Douglas Magde, Sylvia J. Berens, Julie Roque (1980), ''Raman spectrum of a malonic anhydride''. (Actually, of 3,3-dimethyl-oxetane-2,4-dione.) J. Org. Chem., volume 45 issue 9, pp 1705–1706. . References {{Reflist See also * Carbon suboxide Carbon suboxide, or tricarbon dioxide, is an organic, oxygen-containing chemical compound with formula and structure . Its four cumulative double bonds make it a cumulene. It is one of the stable members of the series of linear oxocarbons ... (C3O2), an anhydride of malonic anhydride. * 2-oxetanone, also called β-propiolactone * 3-oxetanone Carboxylic anhydrides Oxetanes Substance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ketones
In organic chemistry, a ketone is a functional group with the structure R–C(=O)–R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group –C(=O)– (which contains a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' is methyl), with the formula . Many ketones are of great importance in biology and in industry. Examples include many sugars ( ketoses), many steroids (e.g., testosterone), and the solvent acetone. Nomenclature and etymology The word ''ketone'' is derived from ''Aketon'', an old German word for ''acetone''. According to the rules of IUPAC nomenclature, ketone names are derived by changing the suffix ''-ane'' of the parent alkane to ''-anone''. Typically, the position of the carbonyl group is denoted by a number, but traditional nonsystematic names are still generally used for the most important ketones, for example acetone and benzophenone. These nonsystematic names are considered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
