Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Oil Co OhiofiledCriticalStandard Oil Co Ohio
Priority to KR7502495ApriorityCriticalpatent/KR790000725B1/en
Application grantedgrantedCritical
Publication of KR790000725B1publicationCriticalpatent/KR790000725B1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Sulfur was eliminated from thiodinitriles, e.g., thiodipropionitrile, to give the resp. dinitrile, e.g., adiponitrile, by heating the thiodinitrile at 200-700≰C; the elimination could be strictly a thermal reaction or a reaction conducted in the presence of other gases, liqs. pr solids. Optimum conditions (from 105 examples) were 555≰C with bonded Cu flake present; 91.6% adiponitrile was obtained with 62.1% conversion.
KR7502495A1975-11-141975-11-14Method of manufacturing of dinitriles from thio dinitriles
KR790000725B1
(en)