• 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)
  • benzaldehyde
  • In a 2-l. bottle equipped with a mechanical stirrer are mixed 635 g. (800 cc., 11.0 moles) of u. s. p. acetone (Note 1) and (Note 2) , 420 g. (400 cc., 4.0 moles) of freshly distilled benzaldehyde boiling at 178-180° (shaken with dilute sodium carbonate just before distillation), and 400 cc. of water. (orgsyn.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)
  • 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
  • The production of acetone by acetoacetate decarboxylase-containing or clostridial bacteria was utilized in large-scale industrial syntheses in the first half of the twentieth century. (wikipedia.org)
  • 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)
  • reactions
  • This has happened in our lab before with nitric acid and dirty sinters, our supervisor is convinced that RT acetone is all you need to clean stuff (as we should be doing reactions 'properly' and not get polymer shit on our glassware in the first place). (blogspot.com)
  • 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)
  • mixture
  • Salt formation is permitted to occur until 0,0007 to 0,011 equivalent percent has taken place and the mixture is then dispersed at least in a quantity of water such that the solids content is 60 percent. (google.com)
  • 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)
  • intermediate
  • The instability of the peroxide intermediate as well as the formation of stoichiometric, low-valued acetone are the major drawbacks of this process. (rsc.org)
  • 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)
  • 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)
  • However
  • However, what our esteemed colleague did on Saturday was attempt to combine the two methods by putting a heady mix of concentrated nitric acid (horrible stuff) and acetone into a sonic bath and wash her flasks in that. (blogspot.com)
  • 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)