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    • 20. 发明授权
    • Benzimidazole-2-carboxanilides
    • 苯并咪唑-2-甲酰苯胺
    • US4981975A
    • 1991-01-01
    • US392300
    • 1989-08-11
    • Peter SpangPeter NeumannHubert Trauth
    • Peter SpangPeter NeumannHubert Trauth
    • C07D235/24C07D405/06C07D405/12C08K5/3442C08K5/3447C09D5/00C09D7/12C09K3/00
    • C07D235/24C07D405/06C08K5/3447
    • Benzimidazolecarboxanilides of the formula (I) ##STR1## where R.sup.1 and R.sup.2 are each H, Cl, alkyl, alkoxy, unsubstitued or alkyl- or alkoxy-substituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 are each H, uninterrupted or --O-- interrupted alkyl or alkoxy, unsubstituted or alkyl- or alkoxy-substituted phenyl, phenylalkyl, phenoxy, phenylalkoxy hydroxyalkyl, hydroxyalkoxy, alkylcarbonylamino, alkanoyloxy, benzoylamino or benzoyloxy, X is alkylene, n is 1 or 2 and where--if n is 1--R.sup.5 is Cl, --OR.sup.6 or --NR.sup.7 R.sup.8 or--if n is 2--R.sup.5 is --O--R.sup.12 --O-- or --N(R.sup.9)--R.sup.13 --N(R.sup.9)-- where R.sup.6 is H, unsubstituted, OH-- or alkanoyloxy-substituted alkyl whose carbon chain may be interrupted by --O-- or --N(R.sup.9)--, cycloalkyl, alkenyl, phenylalkyl, phenoxyethyl, hydroxy alkyl, phenylhydroxyalkyl or glycidyl, R.sup.7 and R.sup.8 are H, alkyl, cycloalkyl, phenyl, naphthyl, alkenyl, phenylalkyl, hydroxyalkyl or --NR.sup.7 R.sup.8, a saturated 5- or 6- membered heterocycle, R.sup.9 is alkyl, cycloalkyl, alkenyl, phenyl, naphthyl or phenylalkyl, R.sup.12 is alkylene, alkenylene, cyclohexylene, oxaalkylene and R.sup.13 is alkylene, oxaalkylene, diphenylenemethane or dicyclohexylenemethane or --N(R.sup.9)--R.sup.13 --N(R.sup.9)-- is piperazinylene, are excellent light stabilizers for organic materials such as polymers and coating binders.
    • 式(I)的苯并咪唑化合物酰胺(I)其中R 1和R 2各自为H,Cl,烷基,烷氧基,未取代或烷基或烷氧基取代的苯基或苯基烷基,R 3和R 4各自为H,不间断或-O - 中间的烷基或烷氧基,未取代的或烷基 - 或烷氧基取代的苯基,苯基烷基,苯氧基,苯基烷氧基羟烷基,羟基烷氧基,烷基羰基氨基,烷酰氧基,苯甲酰氨基或苯甲酰氧基,X是亚烷基,n是1或2,其中如果n是1- R5是Cl,-OR6或-NR7R8,或 - 如果n是2-R5是-O-R12-O-或-N(R9)-R13-N(R9) - ,其中R6是H,未取代的OH-或烷酰氧基 其中碳链可以被-O-或-N(R 9) - ,环烷基,烯基,苯基烷基,苯氧基乙基,羟基烷基,苯基羟基烷基或缩水甘油基间隔的取代烷基,R7和R8是H,烷基,环烷基,苯基,萘基, 烯基,苯基烷基,羟基烷基或-NR 7 R 8,饱和的5-或6-元杂环,R 9为烷基,环烷基,烯基,苯基,萘基或苯基烷基,R 12为亚烷基, 烯,亚环己基,氧杂亚烷基和R 13是亚烷基,氧杂亚烷基,二苯基甲烷或二环己基甲烷或-N(R 9)-R 13 -N(R 9) - 是亚哌啶基,是有机材料如聚合物和涂料粘合剂的优异的光稳定剂。