@article{oai:u-ryukyu.repo.nii.ac.jp:02007006,
 author = {Kuniyoshi, Masayuki and 国吉, 正之},
 issue = {22},
 journal = {琉球大学理工学部紀要. 理学編, Bulletin of Science & Engineering Division, University of Ryukyus.   Mathematics & natural sciences},
 month = {Sep},
 note = {5α-cholestan-4-one and 3β-acetoxy-5α-cholestan-6-one were prepared via several synthetic pathway from cholesterol. They were further converted into dibromo-derivatives; 3α, 5β-dibromo-4-oxo compound and 5α, 7α-dibromo-6-oxo compound respectively, by treatment with bromine in acetic acid containing a trace of 47% boron trifluoride ethyl ether at room temparatur. While chromous acetate was prepared from chromic chloride, zinc-amalgam and sodium acetate, and then it's reactivity for the a, α'-dibromoketo-steroids discribed above was investigated. The reaction of chromous acetate with the dibromoketo-compounds in acetic acid-chloroform (3:1) solution gave the reductive debrominated products, i.e., monobromoketo-compounds (about 20-25%) and its parent keto-compounds (about 8-10%)., 紀要論文},
 pages = {55--61},
 title = {Study  on the Reactions of Chromous Acetate with α, α'-Haloketo-steroids},
 year = {1976}
}