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  • molecule
  • It is not a thermochemically highly favored event because little energy generated in chemical bond formation in reaction products, but rather involves an entropy burst, which is the result of formation of one ozone and three acetone gas phase molecules from every molecule of TATP in the solid state. (wikipedia.org)
  • Rather, the explosion involves entropy burst, which is the result of the formation of 4 gas-phase molecules from every molecule of TATP in the solid state. (wikipedia.org)
  • This definition specifies: The hydrogen bond is an attractive interaction between a hydrogen atom from a molecule or a molecular fragment X-H in which X is more electronegative than H, and an atom or a group of atoms in the same or a different molecule, in which there is evidence of bond formation. (wikipedia.org)
  • This molecule is typically synthesized employing two equivalents of furan and one equivalent of acetone employing concentrated hydrochloric acid as the catalyst at ambient temperature and pressure. (wikipedia.org)
  • Tropinone is a bicyclic molecule, but the reactants used in its preparation are fairly simple: succinaldehyde, methylamine and acetonedicarboxylic acid (or even acetone). (wikipedia.org)
  • ketone
  • Ketone peroxides, including acetone peroxide and methyl ethyl ketone peroxide, find application as initiators for polymerization reactions, e.g., silicone or polyester resins, in the making of fiberglass-reinforced composites. (wikipedia.org)
  • One way of acetal formation is the nucleophilic addition of an alcohol to a ketone or an aldehyde. (wikipedia.org)
  • In glycol cleavage, the C−C bond in a vicinal diol is cleaved with formation of ketone or aldehyde functional groups. (wikipedia.org)
  • Ketone bodies Ketone bodies are three water-soluble molecules (acetoacetate, beta-hydroxybutyrate, and their spontaneous breakdown product, acetone) that are produced by the liver from fatty acids during periods of low food intake (fasting), carbohydrate restrictive diets, starvation, prolonged intense exercise, alcoholism or in untreated (or inadequately treated) type 1 diabetes mellitus. (wikipedia.org)
  • Apart from the three endogenous ketone bodies, acetone, acetoacetic acid, and beta-hydroxybutyric acid, other ketone bodies like beta-ketopentanoate and beta-hydroxypentanoate may be created as a result of the metabolism of synthetic triglycerides, such as triheptanoin. (wikipedia.org)
  • mixture
  • Use of the mixture of glucose and glycerol was successful to achieve acetone-free, 1,3-PDO-free, and enhanced IB production with higher yield, productivity, and selectivity of butanol compared to those with glucose only, providing great advantages from the perspective of carbon recovery to alcohols. (biomedcentral.com)
  • Wolffenstein combined acetone and hydrogen peroxide, and then he allowed the mixture to stand for a week at room temperature, during which time a small quantity of crystals precipitated, which had a melting point of 97 °C. In 1899 Adolf von Baeyer and Victor Villiger described the first synthesis of the dimer and described use of acids for the synthesis of both peroxides. (wikipedia.org)
  • hydrogen
  • For most hydrogen bonds, the X-H bond length of the donor increases upon hydrogen bond formation and the X-H stretching frequency exhibits a red shift in the vibration spectra (i.e. the vibration frequency decreases). (wikipedia.org)
  • However, the subtle interplay between these two effects makes prediction of blue-shifting hydrogen bonds difficult as was shown by an surprising observation of a hydrogen bonds red shift of halothane (2-bromo-2-chloro-1,1,1-trifluoroethane) upon complex formation with acetone. (wikipedia.org)
  • acetone complex the hyperconjugation and rehybridization mechanisms compensate while for typical blue shifting hydrogen bonds (e.g. fluoroform. (wikipedia.org)
  • acetoacetate
  • However, there has been a growing interest in acetone production that is more environmentally friendly, causing a resurgence in utilizing acetoacetate decarboxylase-containing bacteria. (wikipedia.org)
  • Acetone is the decarboxylated form of acetoacetate which cannot be converted back into acetyl-CoA except via detoxification in the liver where it is converted into lactic acid, which can, in turn, be oxidized into pyruvic acid, and only then into acetyl-CoA. (wikipedia.org)
  • Under these circumstances acetyl-CoA is diverted to the formation of acetoacetate and beta-hydroxybutyrate. (wikipedia.org)
  • genes
  • Experiments to determine what causes degeneration have shown that pSOL1 contains four genes which are vital for alcohol and acetone production. (kenyon.edu)
  • clarithromycin and tetracycline for selection was also examined While the majority of genes directly responsible for formation to examine their effects on product formation. (pdftreatment.com)
  • alcohol
  • The formation of acetals reduces the total number of molecules present and therefore is not favourable with regards to entropy, unless one uses a diol rather than two discrete alcohol molecules. (wikipedia.org)
  • Catalysis
  • Specifically, the pKa value of lysine 115 in the active site is unusually low, allowing for the formation of a Schiff base intermediate and catalysis. (wikipedia.org)
  • peroxides
  • Organic peroxides in general are sensitive, dangerous explosives, and all forms of acetone peroxide are sensitive to initiation. (wikipedia.org)
  • Acetone peroxides are also the unwanted product of air-induced oxidation of diisopropyl ether. (wikipedia.org)
  • compounds
  • 6. Formation of ( h -Benzene) or ( h -Cyclohexa-1 ,3 -diene) Compounds of Chromium, Tungsten and Rhenium from Cyclohexane and the Metal atoms. (columbia.edu)
  • yield
  • Weizmann was able to harness the organism's ability to yield acetone from starch in order to mass-produce explosives during the war. (wikipedia.org)
  • reactions
  • In place of acetone, acetonedicarboxylic acid is known as the "synthetic equivalent" the 1,3-dicarboxylic acid groups are so-called "activating groups" to facilitate the ring forming reactions. (wikipedia.org)
  • liver
  • This is a treatment for patients with Tyrosinemia type 1 as it prevents the formation of maleylacetoacetic acid and fumarylacetoacetic acid, which have the potential to be converted to succinyl acetone, a toxin that damages the liver and kidneys. (wikipedia.org)
  • ether
  • Baeyer and Villiger prepared the dimer by combining potassium persulfate in diethyl ether with acetone, under cooling. (wikipedia.org)
  • stable
  • Part 4: Formation and characterization of stable radicals from novel bis- and tris-bithiophene. (uio.no)
  • The tetrameric form of acetone peroxide, prepared under neutral conditions using a tin catalyst in the presence of a chelator or general inhibitor of radical chemistry, is reported to be more chemically stable, although still a very dangerous primary explosive. (wikipedia.org)
  • bacteria
  • In addition to being an important bacteria for industrial use, C. acetobutylicum is studied as model for endospore formation in bacteria. (kenyon.edu)
  • further
  • Further research led to the isolation of an active site peptide sequence and identification of the active site lysine, Lys115, that is involved in the formation of the Schiff base intermediate. (wikipedia.org)
  • chemical
  • In the 1960s, the industry replaced this process with less expensive, more efficient chemical syntheses of acetone from petroleum and petroleum derivatives. (wikipedia.org)
  • intermediate
  • The overall hydrophobic environment of the active site plays a critical role in favoring the neutral amine form of Lys115, a key residue involved in the formation of a Schiff base intermediate. (wikipedia.org)
  • form
  • Acetone peroxide takes the form of a white crystalline powder with a distinctive bleach-like odor (when impure) and can explode if subjected to heat, friction, static electricity, strong UV radiation or shock. (wikipedia.org)