• Title of article

    Geosteranes: Identification and synthesis of a novel series of 3-substituted steranes

  • Author/Authors

    JoséA. D. Lopes، نويسنده , , Eugênio V. Santos Neto، نويسنده , , M?rcio R. Mello، نويسنده , , Francisco De A.M. Reis، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 1997
  • Pages
    4
  • From page
    787
  • To page
    790
  • Abstract
    A novel series of 3-alkyl and 3-carboxyalkyl-5β(H)-steranes 7–10 along with a full homologous series of carboxyalkyl-sterane (C1 to C6) 4–6 with 3α(H)5α(H) configuration have been identified in marine-evaporitic oils from Fazenda Belém, Potiguar Basin (Brazil) on the basis of mass spectral interpretation. The synthesis of enantiomerically pure 3α-alkyl-5β(H)-cholestane and 3β-alkyl-5α(H)-cholestane standards and their coinjection with petroleum fractions confirmed the structural assignments.
  • Keywords
    3-carboxyalkylsteranes , alkylsteranes inBrazilian oils , synthesis of 5cx(H)- and 5P(H)-steranes , I3C NMR , Potiguar Basin , Brazil , StJ(H)-steranes , 3-alkylsteranes , 5cx(H)-steranes
  • Journal title
    Organic Geochemistry
  • Serial Year
    1997
  • Journal title
    Organic Geochemistry
  • Record number

    752426