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12 条记录 (耗时 0.017 秒)

    Process for the preparation of bifunctional tertiary aromatic phosphine oxides
    2.
    发明授权
    Process for the preparation of bifunctional tertiary aromatic phosphine oxides 失效
    制备双官能叔芳基氧化膦的方法

    公开(公告)号：US4816605A

    公开(公告)日：1989-03-28

    申请号：US905687

    申请日：1986-09-09

    申请人： Hans-Jerg Kleiner ,  Erwin Weiss

    发明人： Hans-Jerg Kleiner ,  Erwin Weiss

    IPC分类号： C07F9/53 ,  C07F9/02

    CPC分类号： C07F9/5325

    摘要： Tertiary aromatic phosphine oxides of the formula ##STR1## in which X=F, Cl or Br, are prepared by Friedel-Crafts reaction of (a) phenylthiophosphonic dichloride with fluoro-, chloro-or bromobenzene, or(b) of dichlorophenylphosphine, sulfur and fluoro-, chloro-or bromobenzene, and(c) subsequent conversion of the phosphine sulfides produced by (a) or (b) using H.sub.2 O.sub.2 in a solvent which comprises at least about 2% by weight, preferably at least about 10% by weight, of optionally halogenated lower aliphatic carboxylic acids and/or their anhydrides and, if appropriate, of other inert solvents which are miscible therewith.The reaction products are final products and intermediates in various specialized fields, such as, for example, in the plant protection sector and the polymers sector.

    摘要翻译： 其中X = F，Cl或Br的式“IMAGE”的叔芳基氧化膦通过（a）苯基硫代膦酰氯与氟代，氯或溴苯或（b）二氯苯基膦，硫 和（c）随后使用H 2 O 2在溶剂中转化由（a）或（b）生成的膦硫化物，所述溶剂包含至少约2重量％，优选至少约10重量％ 重量，任选卤代的低级脂族羧酸和/或其酸酐，以及如果合适的话，可与其混溶的其它惰性溶剂。 反应产物是各种专业领域的最终产品和中间体，例如植物保护领域和聚合物领域。

    Process for the preparation of tertiary phosphine oxides
    4.
    发明授权
    Process for the preparation of tertiary phosphine oxides 失效
    制备叔氧化膦的方法

    公开(公告)号：US4806691A

    公开(公告)日：1989-02-21

    申请号：US905170

    申请日：1986-09-09

    申请人： Erwin Weiss

    发明人： Erwin Weiss

    IPC分类号： C07F9/53

    CPC分类号： C07F9/53

    摘要： Tertiary phosphine oxides are prepared by oxidation of tertiary phosphine sulfides using H.sub.2 O.sub.2 in a solvent comprising about 2-20% by weight of optionally halogenated lower aliphatic carboxylic acids and the remainder of mono- or polyhydric aliphatic or cycloaliphatic alcohols--if appropriate in mixtures with other inert solvents which are miscible with the carboxylic acid/alcohol mixture. Preferred solvents comprise acetic acid/methanol and acetic acid/ethanol mixtures.The reaction products are final products and intermediates products in various specialized fields such as, for example, the plant protection sector and the polymers sector.

    摘要翻译： 通过使用H 2 O 2在包含约2-20重量％的任选卤代的低级脂族羧酸的溶剂中氧化叔膦硫化物并且其余的一元或多元脂族或脂环族醇 - 如果合适地与其它物质的混合物 与羧酸/醇混合物可混溶的惰性溶剂。 优选的溶剂包括乙酸/甲醇和乙酸/乙醇混合物。 反应产物是各种专业领域的最终产品和中间体产品，例如植物保护部门和聚合物部门。

    Process for the preparation of tertiary phosphine oxides
    5.
    发明授权
    Process for the preparation of tertiary phosphine oxides 失效
    制备叔氧化膦的方法

    公开(公告)号：US4675446A

    公开(公告)日：1987-06-23

    申请号：US756323

    申请日：1985-07-18

    申请人： Erwin Weiss

    发明人： Erwin Weiss

    IPC分类号： C07F9/53

    CPC分类号： C07F9/53

    摘要： Tertiary phosphine oxides are prepared by the oxidation of tertiary phosphine sulfides with H.sub.2 O.sub.2 in a solvent composed of at least about 20% by weight, preferably at least about 50% by weight, of optionally halogenated, lower aliphatic carboxylic acids and/or their anhydrides; it is particularly preferred if the solvent is composed only of acetic acid.The reaction products are end products and intermediates in a variety of areas such as, for example, the sectors of plant protection and polymers.

    摘要翻译： 叔膦氧化物是通过在由至少约20重量％，优选至少约50重量％的任选卤代的低级脂族羧酸和/或其酸酐的至少约50重量％的溶剂中用H 2 O 2氧化叔膦硫化物来制备的。 特别优选的是，溶剂仅由乙酸组成。 反应产物是各种领域的终产物和中间体，例如植物保护和聚合物领域。

    Process for the preparation of vinylphosphonic dichloride
    9.
    发明授权
    Process for the preparation of vinylphosphonic dichloride 失效
    乙烯基膦酸二氯化物的制备方法

    公开(公告)号：US4761252A

    公开(公告)日：1988-08-02

    申请号：US90229

    申请日：1987-08-27

    申请人： Herbert Siegel ,  Erwin Weiss ,  Harald Berger

    发明人： Herbert Siegel ,  Erwin Weiss ,  Harald Berger

    IPC分类号： B01J27/08 ,  B01J27/138 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07F9/42

    CPC分类号： C07F9/42

    摘要： The invention relates to a process for the preparation of vinylphosphonic dichloride, in which a 2-chloroethanephosphonate of the formula ##STR1## or a mixture of the two esters, is reacted with thionyl chloride at a temperature of 60.degree. to 160.degree. C. in the presence of a catalyst which contains tertiary phosphines, quaternary ammonium or phosphonium salts or alkali metal or alkaline-earth metal halides.During this reaction, any thionyl chloride which may be present is removed by distillation subsequent to this reaction, the mixture remaining is heated to 140.degree. to 200.degree. C., and the vinylphosphonic dichloride produced during this is removed by distillation.

    摘要翻译： 本发明涉及一种制备乙烯基膦酸二氯化物的方法，其中将式（II）的2-氯乙基膦酸盐或两种酯的混合物与亚硫酰氯在60至160℃的温度下反应。 在含有叔膦，季铵或鏻盐或碱金属或碱土金属卤化物的催化剂的存在下。 在该反应中，在该反应之后，通过蒸馏除去可能存在的任何亚硫酰氯，将剩余的混合物加热至140℃至200℃，并通过蒸馏除去其中产生的乙烯基膦酰氯。

    Process for the preparation of vinylphosphonic dichloride
    10.
    发明授权
    Process for the preparation of vinylphosphonic dichloride 失效
    乙烯基膦酸二氯化物的制备方法

    公开(公告)号：US4761251A

    公开(公告)日：1988-08-02

    申请号：US089964

    申请日：1987-08-27

    申请人： Herbert Siegel ,  Erwin Weiss ,  Harald Berger

    发明人： Herbert Siegel ,  Erwin Weiss ,  Harald Berger

    IPC分类号： B01J31/00 ,  C07B61/00 ,  C07F9/42

    CPC分类号： C07F9/42

    摘要： The invention relates to a process for the preparation of vinylphosphonic dichloride through elimination of hydrogen chloride from 2-chloroethanephosphonic dichloride in the presence of catalysts. The catalysts used are tertiary phosphines, quaternary ammonium or phosphonium salts or alkali metal or alkaline-earth metal halides. When triphenyl phosphine is used as the catalyst, the reaction is carried out under reduced pressure at a temperature of 130.degree. to 166.degree. C. and the vinylphosphonic dichloride produced is simultaneously removed by distillation under reduced pressure. When the other catalysts are used, the process can be carried out at atmospheric pressure or reduced pressure and at temperatures of about 130.degree. to 220.degree. C. and the vinylphosphonic dichloride produced can be removed by distillation simultaneously with or subsequent to the reaction.

    摘要翻译： 本发明涉及通过在催化剂存在下从2-氯乙烷膦酸二氯中除去氯化氢来制备乙烯基膦酸二氯化物的方法。 所用的催化剂是叔膦，季铵或鏻盐或碱金属或碱土金属卤化物。 当使用三苯基膦作为催化剂时，反应在130〜166℃的温度下进行减压蒸馏，同时通过减压蒸馏同时除去生成的乙烯基膦酸二氯。 当使用其它催化剂时，该方法可以在大气压或低压下和在约130℃至220℃的温度下进行，并且所产生的乙烯基膦酸二氯化物可以在反应或反应后同时通过蒸馏除去。