Quinoline derivatives, especially those of the formula ##STR1## wherein X represents halogen, nitro or CF.sub.3, Z represents hydrogen, alkyl or aryl, Y represents hydrogen, OH, CN, COR or SO.sub.3 H, R represents alkyl, alkoxy or aryl and n represents an integer from 0 to 4, are obtained in high yields when corresponding aromatic orthodichloromethyl isocyanates are converted by hydrolysis and decarboxylation into the corresponding ortho-aminoaldehydes and these are subjected to a condensation reaction with carbonyl compounds containing an active .alpha.-methylene group. The process products are starting materials for dyestuffs, insecticides and others.
喹啉衍
生物,特别是具有公式##STR1##其中X代表卤素、硝基或CF.sub.3,Z代表氢、烷基或芳基,Y代表氢、OH、CN、COR或SO.sub.3 H,R代表烷基、烷氧基或芳基,n代表0至4的整数,当相应的芳香族邻二
氯甲基
异氰酸酯通过
水解和脱羧反应转化为相应的邻
氨基醛,然后将其与含有活性α-亚甲基基团的羰基化合物进行缩合反应,可以高产地获得上述衍
生物。该过程的产物是
染料、
杀虫剂等的原材料。