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EXPERIMENTS ON THE ELABORATION OF THE CORTISONE
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absorption acetic acid adsorption allowed to stand alumina B/C ring fusion benzene boiled under reflux Chem chloroform chromatographic adsorption compound condensation crude product crystals cyclohexanone dehydroepiandrosterone dimethyl distilled dried and evaporated dry pyridine eluted ester estrone ethyl acetate evaporated to give fraction furfurylidene hydride hydrochloric acid hydrogen ketal ketol acetate Villa ketone lithium aluminum hydride lithium chloride material was taken methanol methyl P-cyanopropionate millimole mole oily organic material ozone potassium t-butoxide pyridine reaction mixture recrystallization room temperature saponification saturated sodium carbonate sodium carbonate sodium hydroxide solid solution was allowed solution was evaporated solution was washed starting material thionyl chloride ultraviolet washed successively yielded