Process for the direct synthesis of organotin compounds and...

C - Chemistry – Metallurgy – 07 – F

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C07F 7/22 (2006.01)

Patent

CA 2071928

Abstract The invention relates to a process for the direct synthesis of organotin compounds of the formula RnSnCl4-n wherein n = 1 - 4 and R = a linear or branched or cycloaliphatic alkyl having 4 - 18 C atoms, by reacting metallic tin with alkyl chlorides, char- acterized in that the reaction is carried out in the presence of amines of the general formula A) R1aN [(CH2CH2O)mCH2CH2OR2] 3-a and/or ammonium chlorides of the formula B) R1bN [(CH2CH2O)mCH2CH2OR2] 4-b Cl wherein a = 0, 1 or 2; b = 0, 1, 2 or 3; R1 = linear or branched or cycloaliphatic alkyl having 2 to 24 C atoms, aryl, alkyl aryl or substituted aryl and, if a=2, or b=2 or 3, the R1 groups may be the same or different; R2 = H, linear or branched alkyl having 1 to 20 C atoms, aryl, substituted aryl or alkyl aryl, and m = 1 - 20.

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