|4510095||Production of organotin halides|
A process is disclosed for the direct production of organotin halides, particularly triorganotin halides by the reaction of elemental tin and an organotin halide in the presence of a reagent amount of an `onium compound of the general formula Cat+
|4179458||Process for preparing organotin compounds|
Organotin compounds comprising at least 50% and often at least 90% tetraorganotin compound and the remainder triorganotin halide, which are suitable for conversion to organotin precursors of stabilizers for polymers or fungicides, are made by reacting an ...
|4129584||Process for preparing dimethyltin dichloride|
A process is provided for preparing dimethyltin dichloride by the reaction of tin metal and methyl chloride in the presence of sulfonium or isothiuronium salts as catalysts....
|4128565||Process for preparing methyltin chlorides|
Improved process for preparing methyltin chlorides through direct reaction of methyl chloride with metallic tin wherein the reaction is effected in a high-boiling hydrocarbon solvent in the presence of a glycol and iodine or an iodine compound as a reacti...
|4092340||Process for preparing organotin compounds|
Tetraalkyltin compounds substantially free from tin, tin alkyl and di alkyl contaminants are prepared by reacting an alkyl halide of 1 - 4 carbon atoms with tin in the presence of an 'onium salt e.g. a quaternary ammonium halide and at least 0.5 g atom of...
|4052426||Process for the manufacture of dimethyl-tin dichloride|
Complexes composed of alkylphosphines or of alkylphosphonium chlorides and tin tetrachloride are good catalysts for the preparation of dimethyl-tin dichloride from tin and methyl chloride in the presence of sulphones and carbonates as solvents....
|4041060||Process for synthesizing organo-tin compounds|
This invention relates to a process for synthesizing organo-tin halides by reacting an organic halide of the formula RX wherein R represents an organic, preferably alkyl or aryl radical whereas X represents halogen, with a finely divided solid alloy, cons...
|3975417||Process for producing halogenated organotin compounds|
A process for the production of an octyltin chloride of the formula, Wherein m is an integer of 1 to 3, which comprises reacting n-octyl chloride with metallic tin in an organic solvent in the presence of (1) either a mixture of a phosphorus compound with an a...
|3970679||Process for the production of organotin halides in sulphones as reaction medium|
A process is described for the production of organotin halides from metallic tin and organic halides and in the presence of catalysts in sulphones as the reaction medium, whereby there are obtained, in addition to high yields, also high reaction rates....
|3954820||Preparation of hydrocarbyl metal halides|
A process is disclosed for the preparation of hydrocarbyl metal halides, such as alkyl tin chlorides, in which a reaction between the metal in its metallic state and a hydrocarbyl halide is catalyzed by a complex formed between a hydrocarbyl metal halide ...