3091-25-6

Usage

Safety Profile

Moderately toxic by an unspecified route. Mildly toxic by ingestion. When heated to decomposition it emits toxic fumes of Cl-. See also TIN COMPOUNDS.

InChI:InChI=1/C8H17.3ClH.Sn/c1-3-5-7-8-6-4-2;;;;/h1,3-8H2,2H3;3*1H;/q;;;;+3/p-3/rC8H17Cl3Sn/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3

Upstream product

• 111-66-0 oct-1-ene 
• 7646-78-8 tin(IV) chloride 
• 1070-00-4 trioctylaluminum 
• 3590-84-9 tetraoctyltin 
• 111-67-1 2-octene 
• 14850-22-7 cis-3-octene 
• 554-68-7 triethylamine hydrochloride 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 27107-89-7 octyltin tris(isooctyl thioglycollate) 
• 111-67-1 2-octene 
• 14775-14-5 n-Octyl-tri-n-butyl-stannan 
• 15231-57-9 n-Octyl-stannan 
• 3542-36-7 di-n-octyltin dichloride 

Relevant academic research and scientific papers

High purity monoalkyltin compounds and uses thereof

The present invention relates to high purity monoalkyltin compounds, more specifically to alkyltin compound compositions containing monoalkyltin as major compound, and minor quantities of di- and/or trialkyltin compounds. The present invention also relates to the preparation processes of such high purity monoalkyltin compounds, as well as to the uses of said monoalkyltin compounds as chlorine-containing polymer-stabilisers, glass coating chemicals and catalysts, as well as articles comprising at least one polymer matrix and a high purity monoalkyltin compound.

Process for the preparation of monoalkyl tin trihalides and dialkyl tin dihalides

The present invention comprises a process for the production of monoalkyltin trihalides of the formula RSnHal 3 , in which R = alkyl or cycloalkyl and Hal = Cl, Br or I, said process comprising contacting alkene, stannous halide and hydrogen halide in the presence of at least one transition metal complex as a catalyst or catalyst precursor; optionally thereafter isolating the monoalkyltin trihalides from the medium. Advantageously M is selected from Group VIII of the periodic Table of elements. The reaction can be carried out with or without a solvent. The reaction proceeds selectively, the only significant side product being alkene isomers resulting from isomerisation of the starting alkene. The alkene is currently applied in excess to the other reactants. The hydrogen halide acid may be employed as gas or in solution. The reaction proceeds smoothly at room temperature or above. A multitude of organic solvents can be used, in particular, solvents like alcohols, ethers and apolar aromatic and aliphatic solvents and mixtures thereof. Small amounts of water do not disturb the reaction. The invention also comprises a process to make dialkyltin dihalides. The monoalkyltin trihalides (i) either isolated from the above reaction medium (ii) either coming from another source are reacted with tin metal to get a mixture of tin dihalide and dialkyltin dihalides. Optionally in option (i) the tin metal can be added during the reaction to monoalkyltin trihalide. In that way the tin dihalide formed can be consumed to produce monoalkyltin trihalide. The invention also relates to the use of these monoalkyltin trihalides, dialkyltin dihalides and mixtures thereof made according to the process hereabove as intermediates for PVC stabilisers, glass coating Chemicals and catalysts.

Process for the preparation of mono- and dialkyltin halogen compounds and use thereof

Production of mixtures of monoalkyl tin trichlorides (I) and dialkyl tin dichlorides (II) by reacting tin tetrachloride with an alkyl aluminum compound in the form of an ether donor complex comprises using an amount of ether in excess of that required to form the complex. Independent claims are also included for: (1) mixtures of (I) and (II) produced as above in a yield of at least 90 mole% based on tin tetrachloride; (2) mixtures of (I) and (II) comprising at least 50 mole% (I); (3) mixtures of (I) and (II) comprising up to 5 mole% trialkyl tin chlorides; (4) mixtures of (I) and (II) comprising at least 50 mole% (I), at least 20 mole% (II) and up to 5 mole% trialkyl tin chloride.

A Convient Synthesis of Monooctyltin(IV) Compounds from 1-, 2-, or 3-Octenes

Zirconocene (n-octyl) chloride, 5-C5H5)2Zr(n-Oct)Cl>, prepared in situ from 1-, 2-, or 3-octene and zirconocene hydrogen chloride, has been found to react smoothly with 0.5 molar equivalents of stannic chloride to give moderate to high yields of n-octyltin(IV) trichloride at room temperature.

Method for producing monoalkyl-tin-trihalides

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.