ES315537A1 - A method for preparing 1-dehydro-9 beta, 10 alpha-steroids (Machine-translation by Google Translate, not legally binding)
- Google Patents
A method for preparing 1-dehydro-9 beta, 10 alpha-steroids (Machine-translation by Google Translate, not legally binding)
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.)
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Koninklijke Philips NV
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Philips Gloeilampenfabrieken NV
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Priority claimed from CH1397964Aexternal-prioritypatent/CH464908A/en
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES315537A1publicationCriticalpatent/ES315537A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
A method of preparing 1-dehydro-9beta, 10alpha-steroids, characterized in that a 9beta, 10alpha-steroid, which contains a ketone oxygen atom in position 3, a double bond in the 4 position and two hydrogen atoms is reacted at carbon atom 2 with 2,3-dichloro-5,6-dicyanobenzoquinone in an anhydrous or substantially anhydrous acid medium in which the acid is present in catalytic amounts, followed by decomposition of the intermediate complex formed. (Machine-translation by Google Translate, not legally binding)
ES0315537A1964-10-281965-07-19A method for preparing 1-dehydro-9 beta, 10 alpha-steroids (Machine-translation by Google Translate, not legally binding)
ExpiredES315537A1
(en)
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