Preparation of S-tricyclohexyltin-O,O-diisopropyl dithiophosphate
AssigneeStauffer Chemical Company
InventorAlexander Mihailovski
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Abstract
S-tricyclohexyltin-O,O-diisopropyl dithiophosphate, a useful miticide, is produced by reaction of tricyclohexyltin chloride with diisopropyl dithiophosphoric acid and a base selected from the group consisting of alkali metal hydroxides and ammonium hydroxide in a two-phase aqueous-organic system. The reaction may be conducted with or without the use of a solvent. In the case of strong alkali metal hydroxides such as sodium hydroxide the reaction is preferably conducted at a pH of about 7 or less.
Claims9
A process for the production of S-tricyclohexyltin-O,O-diisopropyl dithiophosphate comprising reacting tricyclohexyltin chloride, diisopropyl dithiophosphoric acid and a base selected from the group consisting of alkali metal hydroxides and ammonium hydroxide in a substantially two-phase system comprising an aqueous phase and an organic phase.
Dependencies are inferred from the claim text.