有机锡化合物的研究——Ⅰ.一些三苯基锡化合物的制备及其杀菌性能的初步试验

INVESTIGATIONS ON ORGANO-TIN COMPOUNDS Ⅰ.PREPARATION AND FUNGICIDAL PROPERTIES OF SOME TRIPHENYLTIN COMPOUNDS

关于有机锡化合物的化学结构与杀菌性能之间的关系,van der Kerk和Luijten等进行了系统的研究并得到了一些初步的结论:1.在R4Sn,R3SnX,R2SnX2和RSnX3等四种类型的化合物中（X=无机基或碳原子通过其他元素与锡相连的有机基团）,R3SnX的杀菌效力最好,RSnX3最差.2.在三烷基锡化合物R3SnX中,烷基的碳原子总数在9—12之间者具有较高的生理活性,而与个别烷基本身的性质似乎关系不大.3.在化合物R3nX的烷基上引入功能基,一般都降低其杀菌性能.4.三烷基锡化合物（如Et3SnX）中X基团的变更对杀菌性能没有显著的影响.

ABSTRACT Sixteen new compounds of the type Ph_3SnX were prepared,using two different methods,and their fungicidal properties,together with those of some other known com-pounds of the same type,were tested on Aspergillus niger,Penicillium italicum,Xantho-monas malvacearum and Sclerotinia sclerotiorum. From the results obtained (as indicated in Tables 2 and 3),we may conclude that the variation of the group X in Ph_3SnX (cf.Table 1) does affect the fungicidal activity concerned,the effect may be quite markedly in certain cases.