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- W1838602693 abstract "Die aus dem Oxyrheagenintyp 2 (c/s-Lacton) erhältliche cis-Hydroxysäure 4 wird mit Triphenyl- phosphan/Azodicarbonester unter Inversion zum Isooxyrheagenintyp 5 (trans-Lacton) dehydratisiert. Als Nebenprodukte erhält man wenig cis-Lacton 2 und das Enaminoketon 6. First Transformation of a cis-Rheadane to a trans-Rheadane1) The cis-hydroxy acid 4, accessible from the oxyrheagenine type 2 (cis-lactone) is dehydrated with inversion under the influence of triphenylphosphane/azodicarboxylic ester to yield the isooxyrheagenine type 5 (trans-lactone). In addition the reaction mixture contained some cis-lactone 2 and the enamino ketone 6." @default.
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- W1838602693 date "1979-10-01" @default.
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- W1838602693 title "Erstmalige Umwandlung eines <i>cis</i> ‐Rheadans in ein <i>trans</i> ‐Rheadan <sup>1)</sup>" @default.
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- W1838602693 doi "https://doi.org/10.1002/cber.19791121016" @default.
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