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    Process for the production of alkyltin trihalides
    65.
    发明授权
    Process for the production of alkyltin trihalides 失效
    生产阿奇霉素三氯乙烯的方法

    公开(公告)号：US3459779A

    公开(公告)日：1969-08-05

    申请号：US3459779D

    申请日：1967-06-07

    Applicant: STUDIENGESELLSCHAFT KOHLE MBH

    Inventor： NEUMANN WILHELM PAUL

    IPC: C07F7/22

    CPC classification number: C07F7/2216

    Abstract: Alkyl tin trihalides are prepared by the reaction between dialkyl tin dihalides or tetra-alkyl tin and tin tetrahalides in the presence of phosphorus-halogen compounds, alone or in admixture with phosphorus oxides, or a hydrogen halide. Specific catalysts are phosphorus oxychloride, alone or in admixture with phosphorus pentoxide, and hydrochloric acid. The reaction is carried out at the boiling point of the mixture, advantageously under pressure and optionally in the presence of an inert diluent. The process of the invention may be modified in that tin tetrahalide and tetra-alkyl tin are reacted in known manner to form alkyl tin trihalides, which may be separated, and other alkyl tin halides, and the reaction completed by adding further tin tetrahalide and the catalyst of the invention.

    Process for purifying organo-tin hydrides
    67.
    发明授权
    Process for purifying organo-tin hydrides 失效
    有机锡氢化物净化方法

    公开(公告)号：US3347891A

    公开(公告)日：1967-10-17

    申请号：US31643563

    申请日：1963-10-15

    Applicant: STUDIENGESELLSCHAFT KOHLE MBH

    Inventor： PAUL NEUMANN WILHELM ,  HORST NIERMANN

    IPC: C07F7/22

    CPC classification number: C07F7/222

    Abstract: Organo-tin hydrides of the formula RmSnH4- m where R represents an alkyl and/or aryl group and m = 1, 2 or 3 are stabilized by hydrolysis and/or alcoholysis which removes impurities. The hydrolysis and/or alcoholysis may be carried out in the presence of an acid binding agent, e.g. ammonia, alkali metal or alkaline earth metal hydroxides or carbonates, or organic amines. The alcoholysis may be carried out using methanol, butyl alcohol or 2 ethyl hexanol. The subject-matter of Specification 951,150 is disclaimed.

    Abstract translation: 其中R表示烷基和/或芳基并且m = 1,2或3的式RmSnH4-m的有机锡氢化物通过除去杂质的水解和/或醇解来稳定。 水解和/或醇解可以在酸结合剂的存在下进行，例如 氨，碱金属或碱土金属氢氧化物或碳酸盐或有机胺。 醇解可以使用甲醇，丁醇或2-乙基己醇进行。 规格951,150的标的物被放弃。

    Process for the production of organic tin compounds
    68.
    发明授权
    Process for the production of organic tin compounds 失效
    生产有机锡化合物的方法

    公开(公告)号：US3256253A

    公开(公告)日：1966-06-14

    申请号：US26605463

    申请日：1963-03-18

    Applicant: STUDIENGESELLSCHAFT KOHLE MBH

    Inventor： PAUL NEUMANN WILHELM ,  HORST NIERMANN

    IPC: C07F7/22 ,  C08G79/12

    CPC classification number: C08G79/12 ,  C07F7/2212 ,  Y10S585/931

    Abstract: Organotin compounds are prepared by reacting organotin hydrides with olefinically unsaturated hydrocarbons in the presence of a catalyst consisting of AlH3, a complex Al hydride e.g. LiAlH4 or Mg(AlH4)2, or an alkyl Al hydride, e.g. diisobutyl or diethyl Al hydride. The latter may be formed in situ from a trialkyl Al compound, e.g. triisobutyl or trioctyl Al. The starting materials may contain aliphatic, cycloaliphatic, or aromatic radicals, and organotin mono-, di-, or tri-hydrides may be used. 1-15 % mole of the catalyst is used, based on the tin. Reaction may be effected, e.g. in an inert solvent such as toluene, octane, cyclohexane and hydrocarbon mixtures, by mixing the reactants and catalyst and heating to 180 DEG C., or by heating the catalyst with the olefin and adding the tin hydride dropwise at the rate of its consumption. After reaction, the catalyst may be hydrolysed or oxidized and removed by shaking with water, acid, or alkali, or by fractional distillation, or the product may be distilled off and the catalyst recovered.ALSO:Organo-tin polymers are prepared by reacting a diene or triene with an organo-tin di- or tri hydride in the presence of a catalyst consisting of AlH3, a complex Al hydride, e.g. LiAlH4 or Mg(AlH4)2, or an alkyl Al hydride. The latter may be formed in situ from a trialkyl Al compound. The reactants may contain aliphatic, cycloaliphatic or aromatic radicals. Stoichiometric amounts of reactants are used, or an excess of olefin may provide the polymer with unsaturated groups. 1-15 mole per cent of the catalyst is used, based on the tin. Reaction may be effected, e.g., in an inert solvent such as toluene, octane, cyclohexane, and hydrocarbon mixtures, by mixing the reactants and catalyst and heating to 180 DEG C., or by heating the catalyst with the olefin and adding the tin hydride dropwise at the rate of its consumption. After reaction, the catalyst may be hydrolysed or oxidised and removed by shaking with water, acid or alkali, or by fractional distillation, or the product may be distilled off and the catalyst recovered. Examples describe the reaction of di-n-butyl tin dihydride with 1,2,4-trivinyl cyclohexane (Example 8), 1, 7-octadiene (9, 10 and 11), and 1, 5-cyclooctadiene (12); diethyl tin dihydride with divinyl pentene (7); isobutyl tin trihydride with 1, 7-octadiene (14); and a mixture of di-n-butyl tin dihydride and iso-butyl tin trihydride with 1, 7-octadiene.

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