ES379556A1 - A procedure for the preparation of a 1,2 alpha-methylen -6,7 alpha-dialometilen-20-espirox-4-eno 3 oxygenate. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of a 1,2 alpha-methylen -6,7 alpha-dialometilen-20-espirox-4-eno 3 oxygenate. (Machine-translation by Google Translate, not legally binding)
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Merck and Co Inc
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Merck and Co Inc
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Publication of ES379556A1publicationCriticalpatent/ES379556A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur
(AREA)
Steroid Compounds
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
A procedure for the preparation of a 1,2 α -methylene-6,7 α -dihalomethylene-20-spirox-4-ene-3-oxygenated, which consists of reacting a 3-oxy-20-spirox-4,6-diene, with an alkali metal haloacetate to form 6,7 α -dihalomethylene- 20-spiroa: -4-en-3-one; then treating the latter compound with dicloradicianobenzoquinone to form 6,7 α -diallyomethylene-20-spiroxa-1,4-dien-3-one; and then treating the latter compound with dimethylsulphoxonium methylide to form the desired 1,2 α -methylene-6,7 α -dihalome-tilen-20-spirox-4-en-3-one. (Machine-translation by Google Translate, not legally binding)
ES379556A1969-05-141970-05-11A procedure for the preparation of a 1,2 alpha-methylen -6,7 alpha-dialometilen-20-espirox-4-eno 3 oxygenate. (Machine-translation by Google Translate, not legally binding)
ExpiredES379556A1
(en)
A procedure for the preparation of a 1,2 alpha-methylen -6,7 alpha-dialometilen-20-espirox-4-eno 3 oxygenate. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of a 1,2 alpha-methylen -6,7 alpha-dialometilen-20-espirox-4-eno 3 oxygenate. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of the compound 1,2-alfametilen-6,7-alpha-difluormethylen-20-espirox-4-en-3-ona. (Machine-translation by Google Translate, not legally binding)
A procedure for preparation of 3,16 beta-dihydroxy 16 alphaetinyl 19-nor 1,3,5 (10) -androstatrene. (Machine-translation by Google Translate, not legally binding)