Method for making nonanitroterphenyl
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorMichael E. Sitzmann
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Abstract
The present invention is a method for synthesizing polynitropolyphenyls, and more particularly 2,2′,2″,4,4′,4″,6,6′,6″-nonanitroterphenyl (NONA), that employs only a dihalotrinitrobenzene as a starting material. The general method comprises reacting copper dust with dihalo-trinitrobenzene to form a dihalo-polynitropolyphenyl product. This product is then reduced through a high-yield conversion by heating it within a solvent with a reagent capable of providing a source of iodide and a proton source.
Claims19
A method for the preparation of polynitropolyphenyls, comprising the steps of:
- reacting copper dust with dihalo-trinitrobenzene to form a product comprising a dihalo-polynitropolyphenyl;
- and,
- reducing the dihalo-polynitropolyphenyl by heating in a solvent with a reagent providing a source of iodide and a proton source.
A method for the preparation of 2,2′,2″,4,4′,4″,6,6′,6″-nonanitroterphenyl, comprising the steps of:
- reacting copper dust with dihalo-trinitrobenzene to form a product comprising a dihalo-polynitropolyphenyl;
- separating the dihalo-nonanitroterphenyl from the dihalo-polynitropolyphenyl using fractional crystallization;
- and,
- reducing the dihalo-nonanitroterphenyl by heating in a solvent with a reagent providing a source of iodide and a proton source.
Dependencies are inferred from the claim text.