| 摘要 |
1,132,655. Dyestuff intermediates. SANDOZ Ltd. 10 March, 1966 [11 March, 1965], No. 10607/66. Heading C2C. [Also in Divisions C4 and D1] In Examples 2 and 3, 1-amino-8-hydroxynaphthalene-3,6-disulphonic acid and 1,3-diaminobenzene-4-sulphonate are mono-N-acylated using 2,4-dichloro-6-methylpyrimidine-5- acetic acid chloride. The products are dyestuff intermediates. |
