1970
DOI: 10.1002/cber.19701030205
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Digitanolglykoside, XXI Partialsynthese von Dihydrodiginigenon

Abstract: 4AUS Hecogeninacetat lieB sich die Partialsynthese des 12~.20S-Epoxy-5c(.14P. 17PH-pregnantrions-(3.11 . I 5) (14) verwirklichen, das sich mit Dihydrodiginigenon aus Diginigenin als identisch erwies.Digitanol Glycosides, XXI ' 1 Partial Synthesis of Dihydrodiginigenone Starting from hecogenin acetate it was possible to realize the partial synthesis of 1 2~,2OS-epoxy-5c (,l4p, 17pH-pregnan-3, I I ,15-trione (14) that was identical with dihydrodiginigenone obtained from diginigenin.Vor 2 Jahren berichteten Tsch… Show more

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Cited by 3 publications
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“…On treatment with BF3, the epoxide 8a rearranged to the 14a, 15-0x0 derivative 9a as evidenced by positive ord and cd curves (2,6,8). The epimeric ketone 10 (ord and cd curves are negative (2,6,8)) was obtained when 9a was treated under basic conditions followed by reacetylation. The nmr signal of the 18CH3 of 10 is strongly deshielded in comparison with ,the 18-CH3 of 9a (Table I), thus further confirming the proposed stereochemistry .…”
Section: And + $ + $mentioning
confidence: 99%
“…On treatment with BF3, the epoxide 8a rearranged to the 14a, 15-0x0 derivative 9a as evidenced by positive ord and cd curves (2,6,8). The epimeric ketone 10 (ord and cd curves are negative (2,6,8)) was obtained when 9a was treated under basic conditions followed by reacetylation. The nmr signal of the 18CH3 of 10 is strongly deshielded in comparison with ,the 18-CH3 of 9a (Table I), thus further confirming the proposed stereochemistry .…”
Section: And + $ + $mentioning
confidence: 99%