When steroidal 11α, 12α-, 11β, 12β-, and 9β, 11β-epoxides were each treated with thiocyanic acid, the corresponding thiocyanatohydrins were obtained. The thiocyanato and hydroxyl groups of these ring-fission products were assumed to be trans and diaxial to each other by Barton's generalization, and from infrared and ultraviolet data. This was also confirmed by chemical methods.
