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Totalsynthese von 18‐oxygenierten 16‐Ketonen der Androstanreihe. Über Steroide, 150. Mitteilung
Author(s) -
Wieland P.,
Heusler K.,
Ueberwasser H.,
Wettstein A.
Publication year - 1958
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.660410113
Subject(s) - chemistry , stereospecificity , ketone , stereochemistry , derivative (finance) , ether , organic chemistry , catalysis , financial economics , economics
The Δ 14 ‐16‐oxo‐androstene derivative VIII has been prepared in a fully stereospecific way from the tricyclic ketone I by di‐methallylation, ozonisation of the methallyl double bonds, condensation of the 2β‐acetonyl residue with the 4 β‐hydroxyl group with formation of the cyclic enol ether V, and cyclisation.