Abstract: | Conclusions The ketalization of 16 ,17 -epoxy-4-pregnene-3,20-dione has been studied. The structures of the compounds formed by its direct ketalization and the compounds the formation of which are connected with the Wagner-Meerwein rearrangement have been shown.Khimiya Prirodnykh Soedinenii, Vol. 4, No. 5, pp. 289–298, 1968 |