4- Amino-4-nitrodiphenyl ether

PAI with a deflnite head-to-tail backbone can be prepared by condensation of trimelliric acid anhydride with 4-amino-4-nitrodiphenyl ether. Then the nitro group is reduced to give a monomer having amine and acid functional groups. This monomer is subjected to direct polymerization. The procedure is useful for the preparation of dissymmetric polymers. Further compounds with amino groups and nitro groups are 3-nitroaniline, 2-methyl-5-nitroaniline, and, 3-nitromesidine, i.e, 2,4,6-trimethyl-3-nitro-aniline. 

C j 4 alkyl group) 0.5—8.0%, and binder 15—45%. The binder contains 15—45% polymeric material, such as poly (vinyl acetate) or polyfvinyl chloride) with the lower alkyl esters of NC and 65— 85% oxygenated hydrocarbon plasticizers (such as lower alkylene glycols their oxalates, maleates, diglycolates or nitrodiphenyl ethers, etc). E.g. AN 78, Prussian Blue 3, N-amino-alkylmorpholine 3) binder 12, carbon black 3 MgO I%]... 

Aromatic and aliphatic amino ethers have been synthesized by this method. An example of the formation of a cyano ether is the preparation of p-cyano benzyl methyl ether from the substituted benzyl bromide and sodium methoxide (84%). Also, certain aryloxyacetonitriles, AtOCHjCN, are made by the condensation of chloroacetonitrile with sodium phenoxides in a solution of methyl ethyl ketone containing a small amount of sodium iodide (70-80%). Aromatic nitro ethers, like o- and p-nitrodiphenyl ether, have been prepared by the Ullmann procedure (84%). The synthesis of alkyl p-nitrophenyl ethers has also been accomplished with good yields (55-92%). ... 

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