(II).-A solution of As-pregnene-3, 20-dione 3, 2O-bis-ethylene of substituted dithiocarbamates on acrylamide ketal (I, 3 g.(7.46 millimoles)) in benzene (80 ml.) and pyridine (2.5 ml.) was treated with osmium tetroxide (2 g.(8.0 was investigated in an attempt to prepare a series millimoles)), and the mixture was allowed to stand at room of substituted carbamoylethyl dithiocarbamates temperature for 36 hours. The osmate ester was then de ...