Process for isolating dinitronaphthalenes

Details Process for isolating dinitronaphthalenes Process for isolating dinitronaphthalenes

1976-04-01

1977-10-11

Sebastian, Leland A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260705, C07C 7910

Patent

active

040535266

ABSTRACT:
1,5- AND 1,8-DINITRONAPHTHALENES ARE ISOLATED FROM MIXTURES OF ISOMETRIC DINITRONAPHTHALENES AT LEAST CONTAINING THE SAME. The mixture of isomers is treated successively with a more polar solvent and a less polar aromatic solvent for dinitronaphthalenes thereby dissolving the mixture of isomers except for 1,5-dinitronaphthalenes which remains largely undissolved in the more polar solvent. The residual mixture of isomers is subsequently treated, after removal of the more polar solvent, with a less polar aromatic solvent at elevated temperatures in which 1,8-dinitronaphthalenes remains as a largely insoluble residue.

REFERENCES:
donaldson, The Chemistry and Technology of Naphthalene Compounds, Edward Arnold (Publishers) Ltd., London, 1958, pp. 150 to 153.
Urbanski, Chemistry and Technology of Explosives, vol. I, The MacMillan Co., New York, 1964, pp. 428 and 429.
Waag, German Auslegeschrift 1,179,545, Oct. 1964.

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