PubMed · 14353909
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B BAGGETT, L L ENGEL, L L FIELDING. 1955. The estimation of hydroxysteroids.. https://pubmed.ncbi.nlm.nih.gov/14353909/
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The compounds named in the title were prepared by routes which included the reduction of suitable 16 alpha,17-epoxypregnan-20-ones with aluminium amalgam to give 16 alpha-hydroxypregnan-20-ones, and reduction of the 20-oxo function either with sodium borohydride to obtain the 3,16 alpha,20 beta-triols or with lithium-liquid ammonia to obtain the 3,16 alpha,20 alpha-triols.
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The fragmentation processes occurring in various 9alpha-hydroxy steroids upon electron ionization have been studied. The mechanisms proposed for the formation of the prominent ions in these spectra have been confirmed with the aid of deuterium labelling, measurements on metastable ion decompositions, low eV spectra and high resolution mass measurements. The fragmentation of the corresponding 9-oxo-9,10-seco steroids, which shows analogy to that of the 9alpha-hydroxy compounds in many respects, has also been discussed.