Neue,basische Naphtholactamfarbstoffe

摘要

1,274,092. Perinaphtholactams. BADISCHE ANILIN- & SODAFABRIK A.G. 24 Sept., 1969 [25 Sept., 1968], No. 46930/69. Heading C2C. [Also in Division C4] In Example 1, N-ethylperinaphtholactam-4- sulpho-dimethylamide is prepared by sulphochlorinating N-ethyl-perinaphtholactam and reacting the 4-sulphochloride with 40% dimethylamine solution. The product is recrystallized from ethanol m.p. 160‹ C. In Example 184, N-ethylperinaphtholactam-2- chloro-4-sulphodimethylamide is prepared by heating N-ethylperinaphtholactam-4-sulphodimethylamide with sodium hypochlorite solution having 4À9% reactive chlorine. The product has a m.p. of 168-172‹C. In Example 203, N-ethylperinaphtholactam- 2,4-bis-sulphodimethylamide is prepared by sulphochlorinating N-ethylperinaphtholactam to form N-ethylperinaphtholactam-2,4-disulphochloride (m.p. 136-137‹ C.) which is then reacted with 40% dimethylamine solution. The product has a m.p. of 222-223‹ C.