发明授权
- 专利标题： Anthraquinone dyes containing a 2-aryloxy alkoxy carbamate moiety, their intermediates, and a process for their preparation
- 专利标题（中）： 含有二芳基烷氧基羧酸酯基的蒽醌染料，其中间体及其制备方法
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申请号： US21010971申请日： 1971-12-20
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公开(公告)号： US3900472A公开(公告)日： 1975-08-19
- 发明人: CHANG CHARLES H
- 申请人： GAF CORP
- 专利权人： GAF Chemicals Corp
- 当前专利权人： GAF Chemicals Corp
- 优先权： US21010971 1971-12-20
- 主分类号： C07D295/20
- IPC分类号： C07D295/20 ; C07D295/205 ; C09B1/503 ; C09B1/51 ; C09B1/514 ; C09B1/515 ; C09B1/52 ; C07D87/46
摘要：
IN WHICH A is a monocyclic, bicyclic or tricyclic aryl radical; B is halogen, lower alkyl, lower alkylmercapto, amino, lower alkylamino, di-lower alkylamino or phenylamino, n is an integer of from 0 to 4; each of R1, R2, R3 and r4 is hydrogen lower alkyl, cycloalkyl or phenyl; alternatively, R3 and R4 taken together with the nitrogen atom to which they are attached may be a 5 or 6 membered heterocyclic ring optionally interrupted by oxygen or another nitrogen atom; X is SO3H or hydrogen; and m is an integer of from 1 to 4. The new compounds in which X is SO3H are prepared by reacting an anthrarufindisulfonic acid of the formula
WITH A NEW INTERMEDIATE ARYLOXY ALKOXY CARBAMATE COMPOUND OF THE FORMULA
in the presence of boric and concentrated sulfuric acids, treating the reaction mixture with ammonium hydroxide, and subsequent acidification. Compounds in which X is hydrogen are prepared from compounds of Formula I (X SO3H) by treatment with sodium hydrosulfide. The new anthraquinone compounds of this invention are useful for dyeing synthetic fibers such as polyester, polyamide, acetate or triacetate.
New dyestuff compounds having the structure
WITH A NEW INTERMEDIATE ARYLOXY ALKOXY CARBAMATE COMPOUND OF THE FORMULA
in the presence of boric and concentrated sulfuric acids, treating the reaction mixture with ammonium hydroxide, and subsequent acidification. Compounds in which X is hydrogen are prepared from compounds of Formula I (X SO3H) by treatment with sodium hydrosulfide. The new anthraquinone compounds of this invention are useful for dyeing synthetic fibers such as polyester, polyamide, acetate or triacetate.
New dyestuff compounds having the structure