Aromatic Compounds      

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Information @ a Glance

General

  • Aromatic compounds, also known as arenes or aromatics, are chemical compounds that contain conjugated planar ring systems with delocalised pi electron clouds instead of discrete alternating single and double bonds.
  •  Typical aromatic compounds are benzene and toluene.
  • Simple aromatic rings are the fundamental non-polycyclic unsubstituted aromatic rings and may contain heteroatoms.
  • Polycyclic aromatic compounds are fused aromatic rings and may contain heteroatoms.
  • Polycyclic aromatic compounds contains Category:Polycyclic aromatic hydrocarbons.
  • All aromatic compounds are based on benzene, C6H6, which has a ring of six carbon atoms Benzene, C6H6, and other unsaturated compounds that resemble it in chemical behavior.

Application

  • The reductive aldol reaction of electron deficient aromatic compounds has been investigated and found to be a viable method for carbon–carbon bond formation.
  • The aldol reaction is a venerable method of C–C bond formation that has evolved into a highly sophisticated and powerful means of preparing β-hydroxy carbonyl compounds with significant control of both relative and absolute stereochemistry being possible.
  • Aromatic compounds and aldehyde electrophiles was governed by future application to the synthesis of lactacystin 7 and 16-methyloxazolomycin, both of which have interesting and potentially useful biological activity.
  • Application has been almost exclusively focused on core data mining.

Technology

  • A Horizon Technology automated extraction system was used to perform the SPE on typical drinking water samples.
  • The application of conventional analytical techniques as gas chromatography to aromatic compounds relevant in the combustion field allows just the analysis of polycyclic aromatic hydrocarbons (PAH) up to 300 u neglecting the higher molecular weight aromatic species that are commonly present in heavy fractions of coal- and petroleum-derived fuels as well as in the tarry carbonaceous particulates, generated from fuel-rich combustion.
  • Recent advances in mass spectrometry and in particular in the ionisation and injection techniques of liquid and solid samples, makes the mass spectrometry a suitable tool for the analysis of a complex matrix of aromatic tarry species.
Report
  • The first report of the isolation of ent-kaurane and ent-isopimarane diterpenoids from J. kirkii. While various bisbibenzyls have been found in Radula species,this is the first isolation of farnesyl bibenzyl 6 from Radula species.
  • The relatively low magnitude of isotope fractionation in the case of benzene, carbon CSIA alone seems to be insufficient to confirm in-situ biodegradation, in particular with old or complex contaminant plumes where it is difficult to determine the accurate value of the initial isotope composition of the contaminant.
  • The volatile aroma compounds quantified and their qualifier ions selected for identification according the Wiley mass-spectrum library, standard compound used and specialized literature on massspectrum wine flavour’s.

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