Studies on the steroidal components of domestic plants—XXI
Identifieur interne : 001792 ( Istex/Corpus ); précédent : 001791; suivant : 001793Studies on the steroidal components of domestic plants—XXI
Auteurs : Tokuo Kubota ; Ken'Ichi TakedaSource :
- Tetrahedron [ 0040-4020 ] ; 1960.
English descriptors
- KwdEn :
- Acetonide formation, Allylic, Allylic rearrangement, Analytical values, Anhydrokogagcnin, Anhydrokogagcnin triacctatc, Anhydrokogagcnin triacetate, Authentic sample, Benzene, Chloroform, Chrm, Cthcr, Dioxide, Domestic plants, Double bond, Empirical formula, Ether, Further clution, Hydroxyl, Hydroxyl band, Isomer, Kogagcnin, Lithium aluminium hydride, Manganese, Manganese dioxide, Manganese dioxide oxidation, Methanol, Mlxturc, Neutral product, Pcrbcnzoic acid, Primary product, Pure umplc, Small amount, Thionyl chloride, Ulth, Ulth cthcr, Wcrc, Xvllla.
- Teeft :
- Acetonide formation, Allylic, Allylic rearrangement, Analytical values, Anhydrokogagcnin, Anhydrokogagcnin triacctatc, Anhydrokogagcnin triacetate, Authentic sample, Benzene, Chloroform, Chrm, Cthcr, Dioxide, Domestic plants, Double bond, Empirical formula, Ether, Further clution, Hydroxyl, Hydroxyl band, Isomer, Kogagcnin, Lithium aluminium hydride, Manganese, Manganese dioxide, Manganese dioxide oxidation, Methanol, Mlxturc, Neutral product, Pcrbcnzoic acid, Primary product, Pure umplc, Small amount, Thionyl chloride, Ulth, Ulth cthcr, Wcrc, Xvllla.
Abstract
Abstract: In an earlier paper2 of this series, we assigned the position of the double bond in anhydrokogagenin, a dehydration product of kogagenin, at C-5 and 6 tentatively. This has now been confirmed to be located at C-4 and 5 from the results of the epoxide formation, manganese dioxide oxidation and the glycol fission reaction. It has been found that the reaction of anhydrokogagenin with acetone containing a small amount of p-toluenesulphonic acid gives an allylic rearrangement product together with the normal acetonide.
Url:
DOI: 10.1016/0040-4020(60)85001-6
Links to Exploration step
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<front><div type="abstract" xml:lang="en">Abstract: In an earlier paper2 of this series, we assigned the position of the double bond in anhydrokogagenin, a dehydration product of kogagenin, at C-5 and 6 tentatively. This has now been confirmed to be located at C-4 and 5 from the results of the epoxide formation, manganese dioxide oxidation and the glycol fission reaction. It has been found that the reaction of anhydrokogagenin with acetone containing a small amount of p-toluenesulphonic acid gives an allylic rearrangement product together with the normal acetonide.</div>
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