中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4,5-二氯噻吩-2-甲酸 | 4,5-dichlorothiophene-2-carboxylic acid | 31166-29-7 | C5H2Cl2O2S | 197.042 |
4,5-二氯-2-噻吩羧酸甲酯 | methyl 4,5-dichlorothiophene-2-carboxylate | 89281-29-8 | C6H4Cl2O2S | 211.069 |
—— | 2,3-dichloro-5-chloromethyl-thiophene | 122065-05-8 | C5H3Cl3S | 201.504 |
4,5-二氯-2-噻吩羧醛 | 4,5-dichlor-2-thiophenecarboxaldehyde | 67482-49-9 | C5H2Cl2OS | 181.042 |
4,5-Dichlorothiophene-2-carboxylic acid was obtained from the starting material thiophene-2-carboxylic acid via esterification, chlorination and hydrolysis. The chlorination reaction was achieved using N-chlorosuccinimide as the chlorinating agent with high selectivity and yield. The advantages of this synthesis route were mild reaction conditions, simplified operational procedure and the raw materials were easy to obtain. It could be applied to industrial production.