| 摘要 |
1,227,172. Benzoisothiazole derivatives. EASTMAN KODAK CO. 29 April, 1968 [24 May, 1967], No. 20203/68. Heading C2C. [Also in Divisions C4-C5) 2 - [2 - (N - ethyl - m - toluidino)ethyl] - 1,2- benzisothiazolin - 3 - one - 1,1 - dioxide is prepared by refluxing together N-2-chloroethyl-N- ethyl - m - toluidine with 1,2 - benzisothiazolin- 3 - one - 1,1 - dioxide. 2 - [2 - (N - ethylanilino)- ethyl] - 1,2 - benzisothiazolin - 3 - one - 1,1- dioxide and 2 - [2 - (o - chloranilino)ethyl]- 1,2- benzisothiazolin-3-one- 1,1-dioxide are similarly prepared. The compounds are used as coupling components in the preparation of azo dyes (see Divisions C4-C5). |
