Compounds of the formula: ##STR1## wherein R and R.sup.1 are independently lower alkyl or R and R.sup.1 are joined to form a cycloalkyl group of 5 to 8 carbon atoms; R.sup.2 is hydrogen or chloro; and R.sup.3 is hydrogen, halogen or --SR.sup.4 wherein R.sup.4 is lower alkyl, phenyl or phenyl substituted with 1 to 3 of the same or different substituents selected from halogen, nitro, lower alkyl or lower alkyl substituted with 1 to 3 halogens with the proviso that when R.sup.2 is chloro, R.sup.3 is not --SR.sup.4, bromo, fluorine or iodine, possess good fungicidal activity. Moreover, some of the compounds of this invention are active as algicides and herbicides.
该公式的化合物:##STR1## 其中R和R.sup.1分别是较低的烷基或R和R.sup.1结合形成5至8个碳原子的环烷基;R.sup.2是氢或
氯;R.sup.3是氢、卤素或--SR.sup.4,其中R.sup.4是较低的烷基、苯基或苯基取代物,取代物选择自卤素、硝基、较低的烷基或较低的烷基取代物,取代物的数量为1至3,但是当R.sup.2为
氯时,R.sup.3不是--SR.sup.4,
溴、
氟或
碘,具有良好的杀真菌活性。此外,本发明的某些化合物具有杀藻和
除草剂活性。