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Geosteranes: Identification and synthesis of a novel series of 3-substituted steranes |
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| Authors: | JosA D Lopes Eugênio V Santos Neto Mrcio R Mello Francisco De AM Reis |
| Institution: | JoséA. D. Lopes, Eugênio V. Santos Neto, Márcio R. Mello,Francisco De A.M. Reis, |
| 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-alkylsteranes 3-carboxyalkylsteranes 5β (H)-steranes 5α (H)-steranes alkylsteranes in Brazilian oils synthesis of 5α (H)- and 5β (H)-steranes 13C NMR Potiguar Basin Brazil |
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