Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB32706/31A
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Schering Kahlbaum AG
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Schering Kahlbaum AG
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Publication date
Application filed by Schering Kahlbaum AGfiledCriticalSchering Kahlbaum AG
Publication of GB381758ApublicationCriticalpatent/GB381758A/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
Female sexual hormone of the formula C18H24O3 obtained from urine or other body fluids, or oils or preparations containing this hormone, are treated with an agent capable of removing water from the molecule so as to yield a hormone of the formula C18H22O2. The reaction may be brought about by heating with potassium bisulphate, phosphorous pentoxide or the like, or catalytically by passing the vapours over alumina, bleaching earths, or other highly porous substances. According to examples the starting material is heated with potassium bisulphate or porous bleaching earth in a retort and is distilled off under high vacuum at temperatures between 120 and 200 DEG C. The distillate may be dissolved in alcohol and precipitated therefrom by addition of water.
GB32706/31A1930-12-181931-11-25Process for the manufacture of a female sexual hormone
ExpiredGB381758A
(en)
An improved process for refining low temperature tar, tar oils of any origin, crude benzene and products obtained by the destructive hydrogenation of carbonaceous materials