Symmetrical trichlorotriazine derivatives such as 2,4,6-trichloro-1,3,5-triazine and trichloroisocyanuric acid were explored as Vilsmeier–Haack type reagents in the presence of N,N-dimethylacetamide for the effective synthesis of 3-acetyl-2-chloroquinolines from acetanilides. Ultrasonication led to shorter reaction times than conventional heating and gave yields comparable to those obtained under reflux conditions.
对称三氯三嗪衍生物,如2,4,6-三氯-1,3,5-三嗪和三氯异氰尿酸,被探索用作Vilsmeier-Haack型试剂,在N,N-二甲基乙酰胺存在下,有效合成了3-乙酰基-2-氯喹啉,从乙酰苯胺中。超声波处理比传统加热导致更短的反应时间,并且产率与在回流条件下获得的产率相媲美。