发明名称 |
3-Substituted benz[d]isothiazole-1,1-dioxides |
摘要 |
This invention relates to 3-(phenyl/naphthyl)-benz[d]isothiazole-1,1-dioxides wherein the 3-phenyl or the 3-naphthyl group is substituted in the para position with hydroxy blocked with certain protecting groups. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility, for example, as photographic optical filter agents and filter agent precursors.
|
申请公布号 |
US4181660(A) |
申请公布日期 |
1980.01.01 |
申请号 |
US19770836024 |
申请日期 |
1977.09.23 |
申请人 |
POLAROID CORP |
发明人 |
BORROR, ALAN L;CINCOTTA, LOUIS;ELLIS, ERNEST W;FOLEY, JAMES W;KAMPE, MARCIS M |
分类号 |
C07C43/225;C07D275/06;(IPC1-7):C07D275/06;C07D417/10;C07F7/18 |
主分类号 |
C07C43/225 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|