Compound of the formula: ##STR1## in which the nucleus A is unsubstituted or substituted by one or two nitro, amino, alkyl, alkoxy, chlorine or bromine and the alkyl and alkoxy each contain up to two carbon atoms and process for the preparation of such compounds which comprises diazotizing an aniline of the formula: ##STR2## in which the nucleus A is unsubstituted or substituted by one or two nitro, amino, alkyl, alkoxy, chlorine or bromine, the alkyl and alkoxy each containing up to two carbon atoms and cyclizing the diazo derivative obtained.
化合物的公式为:##STR1## 其中,核A未被取代或被一或两个硝基,
氨基,烷基,烷氧基,
氯或
溴取代,而烷基和烷氧基每个都含有最多两个碳原子,并且制备这种化合物的方法包括对公式为:##STR2## 的
苯胺进行重氮化,其中核A未被取代或被一或两个硝基,
氨基,烷基,烷氧基,
氯或
溴取代,而烷基和烷氧基每个都含有最多两个碳原子,然后使得重氮衍
生物环化。