Compounds having blood-anticoagulant properties of the general molecular formula: ##STR1## in which Z represents a halogen atom, preferably a chlorine atom, and n is 0, 1 or 2 and R.sup.4 represents either (1) a grouping which comprises a phenylene radical attached directly or indirectly to the tetralin ring and having in the para position (with respect to such attachment) an electron-withdrawing atom or group whose rotational volume substantially does not exceed that of a phenyl group and which forms together with said phenylene radical a polarizable structure, or (2) a grouping selected from: ##STR2## or (3) a grouping which comprises a phenylene radical attached directly to the tetralin ring and having in the para position (with respect to such attachment) a substituted furanyl or thiophenyl radical attached thereto directly or through oxygen and/or methylene, said furanyl or thiophenyl radical having such an electron-withdrawing atom or group as a substituent in a position forming with the furanyl or thiophenyl radical a polarizable structure, compounds of the type (1) in which R.sup.4 contains two phenylene radicals linked essentially linearly by an aliphatic chain comprising a methylene radical or radicals and optionally at least one oxygen or sulphur atom being preferred. Also included are the processes for the preparation of such compound; rodenticidal compositions containing them; and a method for controlling rodents by applying such a composition.
具有血液抗凝剂性质的化合物的一般分子式为:##STR1## 其中Z代表卤素原子,优选为
氯原子,n为0,1或2,R.sup.4表示:(1)一个包括直接或间接连接到
四环素环的苯基基团,在对位位置(相对于该连接)具有一个电子吸引原子或基团,其旋转体积基本上不超过苯基团的旋转体积,并与该苯基基团一起形成一个极化结构;或(2)从以下基团中选择的一个:##STR2## 或(3)一个包括直接连接到
四环素环的苯基基团,在对位位置(相对于该连接)具有一个取代的
呋喃基或
噻吩基,通过氧和/或亚甲基直接连接到其中,该
呋喃基或
噻吩基具有一个电子吸引原子或基团作为取代基,在与
呋喃基或
噻吩基形成极化结构的位置上,优选含有两个苯基基团,通过含有一个亚甲基基团或若干个亚甲基基团和至少一个氧或
硫原子的脂肪链线性连接的化合物(R.sup.4)。还包括制备这种化合物的工艺,含有它们的
杀鼠剂组合物,以及通过应用这种组合物来控制啮齿动物的方法。