Conclusions
Taking 16-dehydrocorticosterone 16-acetate as am example, a new mode of stabilization of the intermediate products of addition of S,S-diphenylsulfilimine to 21-acetoxy-Δ16-20-ketosteroids has been observed, the steroidal S → M ylide (21-acetoxy-16α-S,S-diphenylsulfiliminopregn-4-en-11β,21-diol-3,20-dione) being formed.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1181–1184, May, 1986.
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Kamernitskii, A.V., Turuta, A.M., Istomina, Z.I. et al. Transformed steroids Communication 151. Mechanism of the condensation of Δ16-20-ketosteroids with S.S-diphenylsulfilimine. Russ Chem Bull 35, 1072–1075 (1986). https://doi.org/10.1007/BF00955384
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DOI: https://doi.org/10.1007/BF00955384