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    • 1. 发明公开
    • METHOD FOR DEUTERATING HALOACRYLIC ACID OR ITS SALT
    • VERFAHREN ZUR DEUTERIERUNG EINERHALOGENACRYLSÄUREODER EINES SALZES DAVON
    • EP1760064A1
    • 2007-03-07
    • EP05750962.2
    • 2005-06-20
    • Wako Pure Chemical Industries, Ltd.
    • MAESAWA, TsuneakiITO, NobuhiroHIROTA, KosakuSAJIKI, Hironao
    • C07C51/347C07B59/00C07C57/54C07B61/00
    • C07B59/001C07B2200/05C07C51/347C07C57/54
    • The object of the present invention is to provide a method for efficiently and industrially deuterating a haloacrylic acid or salt thereof. The present invention is an invention of a deuteration method of a compound represented by the general formula [1]:

      wherein, R 1 and R 2 indicate each independently a light hydrogen atom or a heavy hydrogen atom and at least one of R 1 and R 2 indicates a light hydrogen atom; R 3 indicates a light hydrogen atom, a heavy hydrogen atom, an alkaline metal atom or an alkaline earth metal atom; X indicates a halogen atom; and n indicates 1 or 2,
      which comprises reacting the compound represented by the general formula [1] with a heavy hydrogen source in the presence of a catalyst selected from a palladium catalyst, a platinum catalyst, a rhodium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst that are not subjected to activation processing; and an invention of a deuterated compound represented by the general formula [2]:

      wherein, R 4 and R 5 indicate each independently a light hydrogen atom or a heavy hydrogen atom and at least one of R 4 and R 5 indicates a heavy hydrogen atom; R 3 indicates a light hydrogen atom, a heavy hydrogen atom, an alkaline metal atom or an alkaline earth metal atom; X indicates a halogen atom; and n indicates 1 or 2.
    • 本发明的目的是提供一种有效和工业上氘化卤代丙烯酸或其盐的方法。 本发明是由通式[1]表示的化合物的氘代方法的发明:其中,R 1和R 2各自独立地表示轻氢原子或重氢原子,R 1和R 2中的至少一个 2表示轻氢原子; R 3表示轻氢原子,重氢原子,碱金属原子或碱土金属原子; X表示卤素原子; n表示1或2,其包括在催化剂存在下使通式[1]表示的化合物与重氢源反应,所述催化剂选自钯催化剂,铂催化剂,铑催化剂,钌催化剂, 镍催化剂和不经过活化处理的钴催化剂; 和由通式[2]表示的氘代化合物的发明:其中,R 4和R 5各自独立地表示轻氢原子或重氢原子,R 4和R 5中的至少一个表示重氢原子 ; R 3表示轻氢原子,重氢原子,碱金属原子或碱土金属原子; X表示卤素原子; n表示1或2。
    • 3. 发明公开
    • METHOD OF DEUTERIZATION
    • 电解法
    • EP1577280A1
    • 2005-09-21
    • EP03814536.3
    • 2003-11-07
    • Wako Pure Chemical Industries, Ltd.
    • ITO, NobuhiroMAESAWA, TsuneakiMUTO, KazushigeHIROTA, KosakuSAJIKI, Hironao
    • C07B59/00C07C29/00C07C31/02C07C35/08C07C35/29C07C35/37C07C45/00C07C49/04C07C49/08C07C49/433C07C49/453C07C51/00C07C53/10C07C53/124C07C57/04
    • C07B59/00C07B2200/05C07C29/00C07C45/00C07C2601/14C07C2602/42C07C2603/68C07C31/125C07C35/08C07C35/29C07C35/37
    • The present invention relates to a method for deuteration of a compound represented by the general formula [1]:

              R 1 ―X―R 2      [1]

         wherein, R 1 represents an alkyl group or an aralkyl group, which may have a carbon-carbon double bond and/or triple bond; R 2 represents an alkyl group which may have a carbon-carbon double bond and/or triple bond, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group or a hydroxyl group; X represents a carbonyl group or a hydroxylmethylene group; R 1 and R 2 may form an alicyclic ring together with a carbon atom contained in X; provided that R 2 represents an alkyl group which may have a carbon-carbon double bond and/or triple bond, an aryl group or an aralkyl group when X is a hydroxylmethylene group,
      comprising reacting the compound represented by the general formula [1] with a heavy hydrogen source in the co-presence of an activated catalyst selected from a palladium catalyst, a platinum catalyst, a rhodium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst. The method of the present invention can significantly improve working environment because the deuteration, which has been conventionally carried out under severe conditions such as basic condition, can be carried out under neutral condition. Further, even when the compound represented by the general formula [1] is one having a carbon-carbon double bond or triple bond, the method for deuteration of the present invention enables to efficiently carry out objective deuteration without reduction of said double bond or triple bond.
    • 本发明涉及通式[1]所示化合物的重氢化方法:R 1 -X-R 2 [1]其中,R 1表示可具有碳 - 碳双键的烷基或芳烷基 和/或三键; R2表示可具有碳 - 碳双键和/或三键的烷基,芳基,芳烷基,烷氧基,芳氧基或羟基; X代表羰基或羟亚甲基; R1和R2可以与X中含有的碳原子一起形成脂环; 条件是R2表示可具有碳 - 碳双键和/或三键的烷基,当X为羟基亚甲基时为芳基或芳烷基,所述方法包括使通式[1]代表的化合物与 在选自钯催化剂,铂催化剂,铑催化剂,钌催化剂,镍催化剂和钴催化剂的活化催化剂的共存下重氢源。 本发明的方法可以显着改善工作环境,因为在中性条件下可以在苛刻的条件如碱性条件下执行常规进行的氘化。 此外,即使通式[1]所示的化合物为具有碳 - 碳双键或三键的化合物,本发明的重氢化方法也能够在不使所述双键或三重还原的情况下有效地进行目标重氢化 键。
    • 6. 发明公开
    • DEUTERATED POLYIMIDES AND DERIVATIVES THEREOF
    • DEUTERIERTE POLYIMIDE UND DERIVATE DAVON
    • EP1754739A1
    • 2007-02-21
    • EP05741155.5
    • 2005-05-17
    • Wako Pure Chemical Industries, Ltd.
    • MUTO, KazushigeMAESAWA, TsuneakiITO, NobuhiroWATAHIKI, TsutomuHIROTA, KosakuSAJIKI, Hironao
    • C08G73/10G02B6/12
    • C07D487/04C07D209/48C08G73/10C08G73/1007G02B6/1221
    • The object of the present invention is to provide a polyimide compound useful as a raw material of a polymer for an optical waveguide that has excellent transparency and heat resistance, low moisture absorption, a small optical transmission loss, a high refractive index and good adhesion to a base material or a substrate. The present invention is inventions of a method for producing a deuterated polyamic acid compound represented by the general formula [2]:

      wherein R 1 indicates a tetravalent alicyclic hydrocarbon group or a tetravalent aromatic hydrocarbon group, which may have a heavy hydrogen atom; R 2 indicates a divalent aromatic hydrocarbon group having a heavy hydrogen atom; and m indicates an integer not less than 1,
      which comprises reacting an acid anhydride represented by the general formula [3]:

      wherein R 1 has the same meaning as above, with a deuterated diamine compound represented by the general formula [4]:

              H 2 N-R 2 -NH 2      [4]

      wherein R 2 has the same meaning as above; a method for producing a deuterated polyimide compound represented by the general formula [1]:

      wherein R 1 indicates a tetravalent alicyclic hydrocarbon group or a tetravalent aromatic hydrocarbon group, which may have a heavy hydrogen atom; R 2 indicates a divalent aromatic hydrocarbon group having a heavy hydrogen atom; and n indicates an integer not less than 1, which comprises subjecting thus obtained deuterated polyamic acid compound to a ring closure reaction; a method for producing a deuterated polyimide compound represented by the general formula [1] which comprises reacting an acid anhydride represented by the above general formula [3] with a deuterated diamine compound represented by the above general formula [4] and then subjecting the reaction product to a ring closure reaction; use of a deuterated polyimide compound obtained by the above production methods as a raw material polymer for an optical waveguide; a film for an optical waveguide containing said deuterated polyimide compound; a deuterated polyimide compound; and a deuterated polyamic acid compound.
    • 本发明的目的是提供一种可用作光波导聚合物的原料的聚酰亚胺化合物,其具有优异的透明性和耐热性,低吸湿性,小的光学透射损失,高折射率和对 基材或基材。 本发明是由通式[2]表示的氘代聚酰胺酸化合物的制造方法的发明:其中R 1表示可能具有重氢原子的四价脂环族烃基或四价芳香族烃基; R 2表示具有重氢原子的二价芳香族烃基; m表示不小于1的整数,其包括使通式[3]表示的酸酐与通式[4]表示的氘化二胺化合物反应:其中R 1具有与上述相同的含义。 ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒH2 NR 2 -NH 2€ƒ€ƒ€ƒ€ƒ[4]其中R 2具有与上述相同的含义; 用于制备由通式[1]表示的氘代聚酰亚胺化合物的方法:其中R 1表示可具有重的氢原子的四价脂环族烃基或四价芳族烃基; R 2表示具有重氢原子的二价芳香族烃基; n表示1以上的整数,其包括如此得到的氘代聚酰胺酸化合物进行闭环反应; 一种制备由通式[1]表示的氘代聚酰亚胺化合物的方法,包括使由上述通式[3]表示的酸酐与由上述通式[4]表示的氘化二胺化合物反应,然后使反应 产品进行闭环反应; 使用通过上述制备方法获得的氘代聚酰亚胺化合物作为光波导的原料聚合物; 用于包含所述氘代聚酰亚胺化合物的光波导的膜; 氘代聚酰亚胺化合物; 和氘代聚酰胺酸化合物。