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1H-Benzimidazole-7-carboxylic acid, 2-(3-pyridinyl)- synthesis

9synthesis methods
-

Yield:124340-89-2 83%

Reaction Conditions:

in N,N-dimethyl-formamide at 80; for 120 h;

Steps:

5.1.1. General procedure A: synthesis of 2-substituent-1H-benzimidazole-4-carboxylic acids (compounds 7-13)

General procedure: Appropriate aldehyde (10.5 mmol) was added to the solution of 2,3-diaminobenzoic acid 6 (1.52 g, 10 mmol) in DMF (15 mL). The solution was heated to 80 °C and then stirred for about 120 h. Then, the solution was cooled to room temperature. The precipitates were filtered, washed with ethanol and dried.

References:

Xue, Fei;Luo, Xianjin;Ye, Chenghao;Ye, Weidong;Wang, Yue [Bioorganic and Medicinal Chemistry,2011,vol. 19,# 8,p. 2641 - 2649] Location in patent:experimental part

61063-11-4 Synthesis
ethyl 2-amino-3-nitro-benzoate

61063-11-4
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1H-Benzimidazole-7-carboxylic acid, 2-(3-pyridinyl)-

124340-89-2
6 suppliers
inquiry