Abstract
High productivity of agriculture goods is closely associated with the use of fungicides to reduce losses caused by the fungal plant diseases. However, appearance of resistant population of pathogens to several commercial fungicides is a common phenomenon that requires control. There is, therefore, need for developing novel fungicide compounds that are environmentally safe with low toxicity to wild life and humans. In this study novel organotin(IV) derivatives of bis(pyrimidin-2-ylthio)methane (ptm), bis(pyrimidin-2-ylthio)ethane (pte) and bis(pyrimidin-2-ylthio)hexane (pth) were tested against phytopathogens to evaluate their activity as potential fungicides. The bis(pyrimidin-2-ylthio)alkanes were not active in contrast with the organotin(IV) derivatives. The 5-coordinate triphenyltin(IV) derivatives were the most active compounds in a wide range of concentration. This study shows that the microorganisms were susceptible to the acid character of the organotin(IV) precursors.
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