HUT60470A - New process for producing cyanimidodithiocarbonic acid dimethyl ester
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New process for producing cyanimidodithiocarbonic acid dimethyl ester
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Publication number
HUT60470A
HUT60470AHU14491AHU14491AHUT60470AHU T60470 AHUT60470 AHU T60470AHU 14491 AHU14491 AHU 14491AHU 14491 AHU14491 AHU 14491AHU T60470 AHUT60470 AHU T60470A
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Application filed by Szerves Vegyipari Kutato IntfiledCriticalSzerves Vegyipari Kutato Int
Priority to HU14491ApriorityCriticalpatent/HUT60470A/en
Publication of HU910144D0publicationCriticalpatent/HU910144D0/en
Publication of HUT60470ApublicationCriticalpatent/HUT60470A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Pharmaceutical intermediate cyanimido-di:thio-carbonic acid-di:methyl-ester is prepd. from a di:alkali salt of di:thio-carbonic acid, which is methylated with methyl-chloride Methylation process occurs at 2-8 bar excess pressure and 20-70 deg. C in the presence of a quat. ammonium salt or potassium iodide catalyst. Yield = approx. 80%.
HU14491A1991-01-171991-01-17New process for producing cyanimidodithiocarbonic acid dimethyl ester
HUT60470A
(en)
DERIVATIVES OF 1,2-DITHIOLE-3-THIONE, PROCESS FOR THE PREPARATION OF THESE DERIVATIVES, AS WELL AS THE USE OF THESE DERIVATIVES AS SYNTHESIS INTERMEDIATES OR AS MEDICAMENTS.
SINGLE STAGE FERMENTATION PROCEDURE FOR THE PREPARATION OF 9-HYDROXY-3-BONE-4,17 (20) -PREGNADIEN-20-CARBOXYLIC ACID, USEFUL AS INTERMEDIATE FOR THE PRODUCTION OF STERROIDS