Photolysis of Steroidal 20-Aryl-Substituted 11-Nitrites |
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| Authors: | Jaroslav Kalvoda,Jü ren Grob,Mira Bjelakoví &#x ,Ljubinka Lorenc,Mihailo Lj. Mihailoví &#x |
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| Affiliation: | Jaroslav Kalvoda,Jüren Grob,Mira Bjelakovíć,Ljubinka Lorenc,Mihailo Lj. Mihailovíć |
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| Abstract: | The two structurally similar 20-phenyl- and 20-(4-methoxyphenyl)-11-(nitrosooxy)pregnan-20-ol derivatives 4 and 7 behave differently under photolytic conditions, the former nitrous acid ester affording, as a main product, the benzo-fused hexacyclic compound 9 , and the latter the 21 -nitro derivative 12. Mechanistic aspects of these transformations are discussed. |
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