Phosphorus oxychloride → HCID 178430969, 화합물

반응식

[CH3:1][C:2]1[C:7]2[NH:8][CH:9]=[N:10][C:6]=2[C:5]([C:11](O)=O)=[CH:4][C:3]=1[N+:14]([O-:16])=[O:15].O=P(Cl)(Cl)Cl.S(N)([NH2:25])(=O)=O>S1(CCCC1)(=O)=O>[CH3:1][C:2]1[C:7]2[NH:8][CH:9]=[N:10][C:6]=2[C:5]([C:11]#[N:25])=[CH:4][C:3]=1[N+:14]([O-:16])=[O:15]

참가 물질

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온도: 120 °C

실험 절차

A mixture of 7-Methyl-6-nitro-1H-benzimidazole-4-carboxylic Acid (23) (16.99 g, 76.90 mmol), POCl3 (15.76 mL, 169 mmol), and sulfamide (14.767 g, 154 mmol) in sulfolane (77 mL) is heated to about 120° C. for about 3 hours. The reaction mixture is cooled to ambient temperature and added to ice water (1 L). The resultant mixture is cooled to about 0° C. filtered to provide 7-Methyl-6-nitro-1H-benzimidazole-4-carbonitrile (24), as an off white solid (12.54 g, 80% Yield).