aliphatic

(adjective)

Of a class of organic compounds in which the carbon atoms are arranged in an open chain.

Related Terms

  • chiral
  • amine
  • aromatic
  • inversion

Examples of aliphatic in the following topics:

  • Reaction of Amines with Nitrous Acid

    • Nitrous acid (HNO2 or HONO) reacts with aliphatic amines in a fashion that provides a useful test for distinguishing primary, secondary and tertiary amines.
    • The reactions of nitrous acid with 1°- and 2°- aliphatic amines may be explained by considering their behavior with the nitrosonium cation, NO(+), an electrophilic species present in acidic nitrous acid solutions.
    • The distinct behavior of 1º, 2º & 3º-aliphatic amines is an instructive challenge to our understanding of their chemistry, but is of little importance as a synthetic tool.
    • Loss of nitrogen is slower than in aliphatic 1º-amines because the C-N bond is stronger, and aryl carbocations are comparatively unstable.
    • 2º-Aryl amines give N-nitrosamine derivatives on reaction with nitrous acid, and thus behave identically to their aliphatic counterparts.
  • Introduction to Hydrocarbons

    • This class can be further divided into two groups: aliphatic hydrocarbons and aromatic hydrocarbons.
    • Aliphatic hydrocarbons can be classified based on the structure and bonding of the carbon skeleton into one of three groups: alkanes, alkenes, and alkynes.
  • Alkanes

    • The alkanes and cycloalkanes are also members of a larger class of compounds referred to as aliphatic.
    • Simply put, aliphatic compounds are compounds that do not incorporate any aromatic rings in their molecular structure.
  • Vitamins and Amino Acids

    • Both forms of the vitamin contain a functional naphthoquinone ring and an aliphatic side-chain.
  • Hydrocarbons

    • The hydrocarbons discussed so far have been aliphatic hydrocarbons, which consist of linear chains of carbon atoms.
    • Some hydrocarbons have both aliphatic and aromatic portions; beta-carotene is an example of such a hydrocarbon.
  • Characteristics of Condensation Polymers

    • The difference in Tg and Tm between the first polyester (completely aliphatic) and the two nylon polyamides (5th & 6th entries) shows the effect of intra-chain hydrogen bonding on crystallinity.
  • Amines

    • Aliphatic amines, which are amines connected to an alkyl chain, display solubility in organic polar solvents.
  • Lipid Metabolism

    • A fatty acid is a carboxylic acid with a long aliphatic tail that may be either saturated or unsaturated.
  • Benzene and other Aromatic Compounds

    • Surprisingly, products that appeared to retain many of the double bonds were obtained, and these compounds exhibited a high degree of chemical stability compared with known alkenes and cycloalkenes (aliphatic compounds).
  • The Chemical Shift

    • To make use of a calculator that predicts aliphatic proton chemical shifts, click on the following link (http://www.colby.edu/chemistry/NMR/H1pred.html).
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