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Photochemische Reaktionen. 66. Mitteilung. UV.‐Bestrahlung von 11‐Oxo‐Steroiden IV Neuartige Photoisomerisierung von 3,20‐Di‐äthylendioxy‐11‐oxo‐δ 14 ‐5α‐pregnen
Author(s) -
Gull P.,
Wehrli H.,
Jeger O.
Publication year - 1971
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.19710540750
Subject(s) - chemistry , yield (engineering) , photochemistry , medicinal chemistry , irradiation , physics , materials science , nuclear physics , metallurgy
UV. ‐irradiation of the 11‐oxo‐δ 14 ‐5α‐pregnene derivate 16 gives rise to a novel photochemical reaction. The preferential attack of the photochemically excited carbonyl on CH‐8 furnishes the tertiary cyclopropanol compound 18 in high yield.