Method for producing monoalkyl-tin-trihalides
AssigneeChugoku Marine Paints, Ltd.
InventorsSumio Matsuda, Hajime Kudara
Life of this patent
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Abstract
Monoalkyl-tin-trihalides are prepared in a high yield by a method in which a stannous halide reacts with an alkyl halide in an organic solvent in the presence of a catalytic substance selected from the group consisting of magnesium, iodine, bromine, Grignard reagents and a mixture of two or more of the above-mentioned substances, the organic material being selected from liquid alcohols, tetrahydrofuran, liquid organic acids, liquid esters of organic acids, liquid ketones, liquid hydrocarbons and mixtures of two or more of the above-mentioned compounds, and the resultant monoalkyl-tin-trihalide is isolated from the reaction mixture.
Claims8
A method for producing monoalkyl-tin-trihalides comprising reacting a stannous halide of the formula SnX.sub.2 wherein X is selected from the group consisting of chlorine and bromine, with an alkyl halide of the formula RX wherein R is an alkyl group having 1 to 8 carbon atoms and X is selected from the group consisting of chlorine and bromine, in an organic solvent consisting of a mixture of tetrahydrofuran and an aromatic hydrocarbon having 6 to 9 carbon atoms, in the presence of a catalyst consisting of iodine and magnesium, and isolating said resulting monoalkyl-tin-trihalide from the reaction mixture.
Dependencies are inferred from the claim text.