申请人:Unilever Home & Personal Care USA, division of Conopco, Inc.
公开号:US06646122B1
公开(公告)日:2003-11-11
The invention relates to ligands or complexes useful as catalysts for catalytically bleaching substrates with atmospheric oxygen, and as catalysts in the of treatment of textiles such as laundry fabrics whereby bleaching by atmospheric oxygen is catalysed after the treatment. The ligand is of the general formula:
wherein R1, R2, and R3 independently represent a group selected from methyl, pyridin-2-yl, quinolin-2-yl, pyrazol-1-yl, 3,5-dimethylpyrazol-1-yl, N-methyl-amido, and N-isopropyl-amido; provided at least two of R1, R2 and, R3 represent a coordinating group, the ligand being selected from:
1,4-bis(pyridin-2-ylmethyl)-7-ethyl-1,4,7-triazacyclononane;
1,4-bis(quinolin-2-ylmethyl)-7-ethyl-1,4,7-triazacyclononane;
1,4-bis(pyrazol-1-ylmethyl)-7-ethyl-1,4,7-triazacyclononane;
1,4-bis(3,5-dimethylpyrazol-1-ylmethyl)-7-ethyl-1,4,7-triazacyclononane;
1,4-bis(N-methylimidazol-2-ylmethyl)-7-ethyl-1,4,7-triazacyclononane;
1,4,7-tris(quinolin-2-ylmethyl)-1,4,7-triazacyclononane;
1,4-bis(N-isopropylacetamido)-7-ethyl-1,4,7-triazacyclononane; and
1,4-bis(N-methylacetamido)-7-ethyl-1,4,7-triazacyclononane.
该发明涉及作为催化剂用于利用大气氧气催化漂白基质,并作为催化剂用于处理纺织品,例如洗衣织物,处理后通过大气氧气催化漂白。配体的一般公式为:其中R1、R2和R3分别代表从甲基、吡啶-2-基、喹啉-2-基、吡唑-1-基、3,5-二甲基吡唑-1-基、N-甲基酰基和N-异丙基酰基中选择的基团;至少两个R1、R2和R3代表一个配位基团,所选配体包括:1,4-双(吡啶-2-基甲基)-7-乙基-1,4,7-三氮杂环壬烷;1,4-双(喹啉-2-基甲基)-7-乙基-1,4,7-三氮杂环壬烷;1,4-双(吡唑-1-基甲基)-7-乙基-1,4,7-三氮杂环壬烷;1,4-双(3,5-二甲基吡唑-1-基甲基)-7-乙基-1,4,7-三氮杂环壬烷;1,4-双(N-甲基咪唑-2-基甲基)-7-乙基-1,4,7-三氮杂环壬烷;1,4,7-三(喹啉-2-基甲基)-1,4,7-三氮杂环壬烷;1,4-双(N-异丙基乙酰胺基)-7-乙基-1,4,7-三氮杂环壬烷;和1,4-双(N-甲基乙酰胺基)-7-乙基-1,4,7-三氮杂环壬烷。