Steroids. XLV.1 Introduction of the 11-Keto and 11α-Hydroxy Groups into Ring C Unsubstituted Steroids (Part 8).2 Performic Acid Oxidation of 7,9(11)-Dienes3
Steroids. XXXI.<sup>1</sup> Introduction of the 11-Keto and 11α-Hydroxy Groups into Ring C Unsubstituted Steroids (Part 4).<sup>2</sup> Saturated 7,11-Diones