Cyclic bis-benzimidazole ligands and metal complexes thereof
    3.
    发明授权
    Cyclic bis-benzimidazole ligands and metal complexes thereof 有权
    环状双苯并咪唑配体及其金属络合物

    公开(公告)号:US06376664B1

    公开(公告)日:2002-04-23

    申请号:US09528273

    申请日:2000-03-17

    IPC分类号: C07D22500

    CPC分类号: C07D487/18

    摘要: Cyclic bis benzimidazole ligands of the following formula are formed by contacting a (2-aminophenyl)-benzimidazole-4-carboxaldehyde ethylene acetal or a (2-nitrophenyl)-benzimidazole-4-benzaldehyde with an acid optionally in the presence of a metal or a metal salt. wherein R1 and R2 may be the same or different and are selected from H, an alkyl having 1 to 10 carbon atoms, a benzyl group, a substituted 2-ethylphenyl group, a carbonyl group, a phenyl substituent, a tosyl group, and an alkylsulfonate group; R3 and R4 may be the same or different and are selected from H, methyl, and ethyl; and R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, and R18 may be the same or different and are selected from H, alkyl having 1 to 10 carbon atoms, fluoride, chloride, bromide, iodide, nitro, amino, a carboxylate, an ester, and a phenyl group.

    摘要翻译: 通过使(2-氨基苯基) - 苯并咪唑-4-甲醛乙醛缩醛或(2-硝基苯基) - 苯并咪唑-4-苯甲醛与酸任选地在金属存在下接触而形成下式的环状双苯并咪唑配体,或 其中R1和R2可以相同或不同,选自H,具有1-10个碳原子的烷基,苄基,取代的2-乙基苯基,羰基,苯基取代基,甲苯磺酰基 和烷基磺酸酯基; R 3和R 4可以相同或不同,并且选自H,甲基和乙基; 和R 5,R 6,R 7,R 8,R 9,R 10,R 11,R 12,R 13,R 14,R 15,R 16,R 17和R 18可以相同或不同,选自H,具有1-10个碳原子的烷基, 氯化物,溴化物,碘化物,硝基,氨基,羧酸酯,酯和苯基。