| 摘要 |
1,127,080. Nitrophenylenediamine derivatives. L'OREAL. 5 Dec., 1966 [3 Dec., 1965; 13 April, 1966; 19 Oct., 1966], No. 54372/66. Heading C2C. [Also in Divisions C4 and D1] The invention comprises compounds of the formula and salts thereof where one of R 1 , R 2 , R 3 and R 4 is of the formula -(CH 2 ) n -N(R 6 )R 7 and the others are hydrogen or alkyl of 1-6 carbon atoms, n is 2-6, R 6 and R 7 are hydrogen, alkyl of 1-6 carbon atoms or form a ring with the nitrogen atom and R 6 is hydrogen, halogen or alkyl or alkoxy of 1-6 carbon atoms, with the proviso that when R 1 or R 2 is -(CH 2 ) n -N(R 6 )R 7 then R 6 and R 7 are not hydrogen. The compounds may be prepared by reacting together compounds of the formulµ where X is halogen or nitro, or by reacting compounds of the formulµ and R 3 -NH-R 4 where X is halogen, arylsulphonating one of the hydrogen atoms on the primary amino group and condensing an alkali metal or alkaline earth metal derivative of the product with a compound of the formula Y-(CH 2 ) n -N(R 6 )R 7 where Y is halogen. Quaternary ammonium and acid addition salts may be formed by the addition of a quaternizing agent or an acid to the compounds. Intermediates isolated are 1-amino, 1-benzenesulphonylamino and 1-N-benzenesulphonylamino - N - # - diethylaminoethylamino - 3 - dimethylamino-4-nitro-6-methylbenzene. |
