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agathosma_betulina_berg._pillans [2017/09/16 10:51]
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 [Stereoisomeric flavour compounds. Part LVII: The stereoisomers of 3‐Oxo‐p‐menthane‐8‐thiol acetate, simultaneously stereoanalysed with their corresponding thiols., Köpke, T., Schmarr, H.G., Mosandl, A., Flavour and fragrance journal, Vol.7(4), 1992, 205-211] [Stereoisomeric flavour compounds. Part LVII: The stereoisomers of 3‐Oxo‐p‐menthane‐8‐thiol acetate, simultaneously stereoanalysed with their corresponding thiols., Köpke, T., Schmarr, H.G., Mosandl, A., Flavour and fragrance journal, Vol.7(4), 1992, 205-211]
  
-| {{:pulegone.jpg| pulegone }} \\ pulegone | {{:isomenthone.jpg| isomenthone }} \\ isomenthone | {{:8mercapto_pmenthane3one.jpg| 8-mercapto-p-menthane-3-one }} \\ 8-mercapto- \\ p-menthane-3-one | {{:8acetylthio_pmenthane3one.jpg| 8-acetylthio-p-menthane-3-one }} \\ 8-acetylthio- \\ p-menthane-3-one |  +| {{:pulegone.jpg| pulegone }} \\ pulegone | {{:isomenthone.jpg| isomenthone }} \\ isomenthone | {{:8mercapto_pmenthane3one.jpg| 8-mercapto-p-menthane-3-one }} \\ 8-mercapto- \\ p-menthane-3-one | {{:8acetylthio_pmenthane3one.jpg| 8-acetylthio-p-menthane-3-one }} \\ 8-acetylthio- \\ p-menthane-3-one | {{:disophenol.jpg| disophenol }} \\ disophenol | {{:disophenol_phi.jpg| ϕ-disophenol }} \\ ϕ-disophenol |
-{{:disophenol.jpg| disophenol }} \\ disophenol | {{:disophenol_phi.jpg| ϕ-disophenol }} \\ ϕ-disophenol |+
  
-{{:buchu_ingr2.jpg|}} \\ 
-left: pulegon; center left: isomenthon (R=H), 8-mercapto-p-menthan-3-one (R=SH); center right: diosphenol; right: ϕ-diosphenol 
  
 "The chemical composition of three different buchu essential oils which were derived from Agathosma betulina, A. crenulata and an A betulina x crenulata hybrid respectively (fam. Rutaceae) was investigated by means of chromatographic and spectroscopic methods. Approximately 40 compounds, all known, were detected. A. betulina was characterized by 31% of (iso)menthone, 41% (ϕ)-diosphenol and 3% of the olfactory important cis- and trans-8-mercapto-p-menthane-3-ones. The A. crenulata oil contained very high quantities of pulegone (54%) besides considerable quantities of trans-8-acetylthio-p-menthan-3-one (7%). The hybrid showed, apart from a very high concentration of (iso)menthone (55%), an intermediate composition." \\ "The chemical composition of three different buchu essential oils which were derived from Agathosma betulina, A. crenulata and an A betulina x crenulata hybrid respectively (fam. Rutaceae) was investigated by means of chromatographic and spectroscopic methods. Approximately 40 compounds, all known, were detected. A. betulina was characterized by 31% of (iso)menthone, 41% (ϕ)-diosphenol and 3% of the olfactory important cis- and trans-8-mercapto-p-menthane-3-ones. The A. crenulata oil contained very high quantities of pulegone (54%) besides considerable quantities of trans-8-acetylthio-p-menthan-3-one (7%). The hybrid showed, apart from a very high concentration of (iso)menthone (55%), an intermediate composition." \\
agathosma_betulina_berg._pillans.txt · Zuletzt geändert: 2019/02/12 12:30 von andreas

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