Novel halogeno-benzofuranone-carboxylic acids and a novel process for their preparation by reacting substituted or unsubstituted phenols with dihalogenomaleic anhydrides or derivatives thereof are described. The novel halogeno-benzofuranone-carboxylic acids are valuable intermediates for the preparation of pharmaceutical active compounds having an antiallergic action or for the preparation of biocidal active compounds for combating plant and animal pests, in particular phytopathogenic fungi and bacteria.
本文描述了一种新型的卤代
苯并呋喃酮羧酸及其制备方法,该方法是通过将取代或未取代的
苯酚与二卤代
马来酸酐或其衍
生物反应而得到的。这些新型的卤代
苯并呋喃酮羧酸是制备具有抗过敏作用的药物活性化合物或用于对抗植物和动物害虫,特别是植物病原真菌和细菌的
生物杀虫活性化合物的有价值的中间体。