| | Identification | More |  | [Name] 
 1H-1,2,3-BENZOTRIAZOLE-5-CARBOXYLIC ACID
 |  | [CAS] 
 60932-58-3
 |  | [Synonyms] 
 1H-1,2,3-BENZOTRIAZOLE-5-CARBOXYLIC ACID
 1H-BENZOTRIAZOLE-5-CARBOXYLIC ACID
 1-H-BENZOTRIAZOLECARBOXYLIC ACID
 5-CARBOXYBENZOTRIAZOLE
 5-CARBOXYL BENZOTRIAZOLE
 BENZOTRIAZOLE-5-CARBOXYLIC ACID
 BUTTPARK 98\57-27
 COBRATEC(R) CBT
 OTAVA-BB BB7117850639
 ZERENEX E/6026513
 |  | [EINECS(EC#)] 
 262-527-4
 |  | [Molecular Formula] 
 C7H5N3O2
 |  | [MDL Number] 
 MFCD00012318
 |  | [Molecular Weight] 
 163.13
 |  | [MOL File] 
 60932-58-3.mol
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xi
 |  | [Risk Statements ] 
 R36/37/38:Irritating to eyes, respiratory system and skin .
 |  | [Safety Statements ] 
 S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
 |  | [WGK Germany ] 
 3
 
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Used as an intermediate for organic synthesis.
 |  | [Synthesis] 
 1H-Benzotriazole-5-carboxylic acid was formed of carboxytriazole (3.91 g, 24 mmol), 4-dimethylaminopyridine (0.32 g, 2.6 mmol), dimethylformamide (58 g) andatert-butyl methyl ether (46 g) solution of ZTETRAOL 2000s produced by the SOLVAY SOLEXIS company (Mn of 1730 for Rf(F)=-CF2O (CF2CF2O)m(CF2O)nCF2-) (13.26 g, 6.0 mmol) which had four terminal hydroxyl groups, as a perfluoropolyether were added sequentially to a three-necked flask which had been fitted with a nitrogen bubbling tube and a stirrer. 1-Ethy3- (3-dimethylaminopropyl)carboxylmide hydrochloride (4.60 g, 24 mmol) was added at room temperature and stirred for 24 hours at 50°C. Water (60 g) and methyl isobutyl ketone (60 g) were added to the reaction solution and the liquid was partitioned. The organic layer was washed two or three times with 1% hydrochloric acid aqueous solution (50 g) and saturated salt water (50 g) and then dried with anhydrous sodium sulphate and concentrated and 1H-Benzotriazole-5-carboxylic acid was obtained. Yield (10.1 g).
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