Accession Number : ADD007097

Title :   Preparation of HNS from HNBB Using Oxygen.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Gilbert,Everett E

Report Date : 16 Jan 1980

Pagination or Media Count : 12

Abstract : A process for preparing 2,2',4,4',6,6'-hexanitrostilbene in high yields by reacting 2,2',4,4',6,6'-hexanitrobibenzyl in a suitable solvent with an oxygen-containing gas in the presence of a catalyst. The catalyst is selected from the group consisting of copper ammino and cobalt ammino compounds, copper and cobalt acetates, copper and cobalt halides, copper sulfate, and ammonium and alkali metal bases. It is an object of the present invention to provide a process for preparing 2,2',4,4',6,6'-hexanitrostilbene (HNS) in high yields through the oxidation of 2,2',4,4',6,6'-hexanitrobibenzyl (HNBB). It is a further object of this invention to provide a process for the preparation of HNS through oxidation of HNBB with an oxygen containing gas without requiring the use of methanol, potassium hydroxide, pyridine and other solvents essential in the Kompolthy et al process discussed above. It is a still further object of this invention to provide a process for preparing 2,2',4,4'6,6'-hexanitrostilbene through oxidation of HNBB with oxygen-containing gas in increased yields through addition of small amounts of a catalyst. These and other objects of the invention will be apparent from the detailed description of the invention. (Author)

Descriptors :   *Patent applications, *Synthesis(Chemistry), *Catalysts, Explosives, Oxidation, TNT, Inventions, Stability, Sodium compounds, Nucleation, Solvents, Carbinols, Potassium compounds, Mixtures, Impurities

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE