| abstract |
R für Phenyl, Pyridyl, Furyl, Thienyl oder Pyrazolyl steht, wobei die genannten Reste gegebenenfalls substituiert sein können, R' für gegebenenfalls substituiertes Phenyl steht und X für Halogen steht. 1-Halogen-1-propin-3-ole, of the formula in which R represents phenyl, pyridyl, furyl, thienyl or pyrazolyl, where the radicals mentioned can optionally be substituted, R 'represents optionally substituted phenyl and X stands for halogen. n n n You will get one if you have T-Propin-3-ols of the formula with halogens in the presence of an aqueous alkali hydroxide solution and in the presence of a diluent.n n n The 1-halo-1-propyne-3-ols have a strong fungitoxic effect and can be used with particularly good results for combating Phytophtora infestans and Venturia species; also for combating cereal diseases, such as grain rust and wheat stone fire. |