| 摘要 |
The present invention relates to a process for preparing 4-alkoxycarbonyl-3-aminothiophenes of the general formula (I) and/or their hydrochlorides of the formula (I)′in which R1 and R2 are each as defined in the description, and/or their mono- or bisacetylated or mono- or bisformylated form, by reacting enamines of the formula (II) in which R1 and R2 are each as defined in the description, and/or their mono- or bisacetylated or mono- or bisformylated form, with a chlorinating agent in the presence of one or more diluents, and also to a process for preparing the compounds of the formula (II). |
