苯亚磺酸锂 | 16883-74-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 苯亚磺酸锂
• 英文名称: lithium benzenesulfinate
• 英文别名: Lithium-benzolsulfinat；lithium;benzenesulfinate
• CAS: 16883-74-2
• 化学式: C₆H₅O₂S*Li
• 分子量: 148.112
• InChiKey: NVSKMOMNGUJKCL-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -2.07
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  59.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  苯亚磺酸锂 在 lithium aluminium tetrahydride 、 正丁基锂 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 生成 1-hydroxy-3,7-dimethyl-4-(phenylsulfonyl)-9-(2,6,6-trimethylcyclohexen-1-yl)-none-2,6,8-triene
  参考文献：
  名称：

  通过砜烷基消除合成维生素A。C15卤化物，C5羟基砜的方法。

  摘要：

  DOI：

  10.1021/jo00882a017
• 作为产物：
  描述：

  苯基锂 在 二氧化硫 作用下， 反应 1.5h， 以4.3 g的产率得到苯亚磺酸锂
  参考文献：
  名称：

  乙酸锰（iii）与亚磺酸钠和亚磺酸锂介导的酰胺直接C（sp2）-H-磺酰化反应。

  摘要：

  Mn（OAc）3介导的酰胺和氨基甲酸酯与亚磺酸钠和亚磺酸锂的氧化C（sp2）-H磺酰化反应。该操作简单的转化以中等至优异的产率提供了对（E）-β-酰胺基乙烯基砜的直接且高度立体选择性的获得。该反应在室温温和条件下容易进行，并能耐受各种敏感的官能团。该方法独立地提供了（E）-构型的β-酰胺基乙烯基砜，而与起始材料的构型无关。此外，描述了有机锂试剂和二氧化硫直接转化为β-酰胺基乙烯基砜。

  DOI：

  10.1039/c9ob00825j
• 作为试剂：
  描述：

  (2-甲基苯基)(2,4,6-三甲基苯基)碘鎓三氟甲烷磺酸盐 在 copper(l) iodide 、 苯亚磺酸锂 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以47%的产率得到phenyl o-tolyl sulfone
  参考文献：
  名称：

  从有机金属试剂和碘鎓盐一锅法合成芳基砜

  摘要：

  描述了锂，镁和锌亚磺酸盐与二芳基碘鎓盐的无过渡金属芳基化。亚磺酸盐是由相应的有机金属试剂与二氧化硫反应制得的。三个单一步骤（有机金属化合物的制备，亚磺酸盐的形成和芳基化）的组合产生了从简单起始原料合成芳基砜的一锅法序列。已经研究了不对称二芳基碘鎓盐的化学选择性。将讨论这种方法的潜力和局限性。

  DOI：

  10.1021/jo5027518

文献信息

• SILANE COUPLING COMPOUNDS AND MEDICAL AND/OR DENTAL CURABLE COMPOSITIONS COMPRISING THE SAME
  申请人：KABUSHIKI KAISHA SHOFU

  公开号：US20190300552A1

  公开（公告）日：2019-10-03

  The present invention relate to a novel silane coupling agent and a medical and/or dental curable composition comprising the same. It is an object of the present invention to provide a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength, flexibility and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition. A silane coupling agent including repeating units such as a urethane bond and polyethylene glycol (ether bond) at a specific position is used.

  本发明涉及一种新型硅烷偶联剂以及包括该偶联剂的医用和/或牙科可固化组合物。本发明的目的是提供一种新型硅烷偶联剂，使其对自由基聚合单体具有高亲和力，从而在用于医用和/或牙科可固化组合物时赋予高机械强度、柔韧性和耐久性，并且包括经新型硅烷偶联剂表面处理的无机填料和新型医用和/或牙科可固化组合物。该硅烷偶联剂包括在特定位置具有尿素键和聚乙二醇（醚键）等重复单元。
• DENTAL CEMENT
  申请人：KURARAY NORITAKE DENTAL INC.

  公开号：US20170135909A1

  公开（公告）日：2017-05-18

  The present invention provides a dental cement that exhibits excellent adhesiveness to dentin and has high mechanical strength. The present invention relates to a multi-part dental cement containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); a hydrophobic crosslinkable polymerizable monomer (c); a chemical polymerization initiator (d); and a filler (e). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1): where X is an optionally substituted, linear or branched C 1 to C 6 aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR 1 —, —CO—NR 1 —, —NR 1 —CO—, —CO—O—NR 1 —, —O—CO—NR 1 —, and —NR 1 —CO—NR 1 —, and R 1 is a hydrogen atom or an optionally substituted, linear or branched C 1 to C 6 aliphatic group.

  本发明提供一种对牙本质具有良好粘附性并具有高机械强度的牙科水泥。本发明涉及一种含有多部分的牙科水泥，包括：一种不对称的丙烯酰胺-甲基丙烯酸酯化合物（a）；一种含酸基的（甲基）丙烯酸聚合单体（b）；一种疏水性交联聚合单体（c）；一种化学聚合引发剂（d）；和一种填料（e）。不对称的丙烯酰胺-甲基丙烯酸酯化合物（a）由以下一般式（1）表示：其中X是可选择取代的线性或支链的C1到C6脂肪族基团或可选择取代的芳香族基团，脂肪族基团可选择地被来自由—O—、—S—、—CO—、—CO—O—、—O—CO—、—NR1—、—CO—NR1—、—NR1—CO—、—CO—O—NR1—、—O—CO—NR1—和—NR1—CO—NR1—组成的至少一种连接基团中断，且R1是氢原子或可选择取代的线性或支链的C1到C6脂肪族基团。
• DENTAL ADHESIVE
  申请人：KURARAY NORITAKE DENTAL INC.

  公开号：US20170196778A1

  公开（公告）日：2017-07-13

  The present invention provides a dental adhesive exhibiting excellent initial bond strength and bond durability to both enamel and dentin. The present invention relates to a dental adhesive containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); and a water-soluble polymerizable monomer (c). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1): where X is an optionally substituted, linear or branched C 1 to C 6 aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR 1 —, —CO—NR 1 —, —NR 1 —CO—, —CO—O—NR 1 —, —O—CO—NR 1 —, and —NR 1 —CO—NR 1 —, and R 1 is a hydrogen atom or an optionally substituted, linear or branched C 1 to C 6 aliphatic group.

  本发明提供了一种牙科粘接剂，具有优异的初始粘接强度和对牙釉质和牙本质的粘接耐久性。本发明涉及一种含有以下成分的牙科粘接剂：不对称丙烯酰胺-甲基丙烯酸酯化合物（a）；含酸基的（甲基）丙烯酸聚合单体（b）；以及水溶性聚合单体（c）。不对称丙烯酰胺-甲基丙烯酸酯化合物（a）由下述一般式（1）表示：其中X是可选择取代的线性或支链状的C1到C6脂肪族基或可选择取代的芳香族基，所述脂肪族基可被来自由—O—、—S—、—CO—、—CO—O—、—O—CO—、—NR1—、—CO—NR1—、—NR1—CO—、—CO—O—NR1—、—O—CO—NR1—和—NR1—CO—NR1—组成的至少一个连接基中断，R1为氢原子或可选择取代的线性或支链状的C1到C6脂肪族基。
• Process for removal of allyl group or allyloxycarbonyl group
  申请人：PFIZER INC.

  公开号：EP0676236A1

  公开（公告）日：1995-10-11

  This invention relates to a process for the removal of an allyl or allyloxycarbonyl group from an allyl or allyloxycarbonyl group protected compound (such as an allylic ester, carbonate, carbamate, O-allyl derivatives or N-allyl derivatives), which comprises contacting the allyl or allyloxycarbonyl group protected compound with a sulfinic acid compound, in the presence of a palladium catalyst in a reaction-inert solvent. Preferably, the sulfinic acid compound is represented by the formula:         X-SO₂M   (I) wherein X is C₁₋₂₀ alkyl, substituted C₁₋₂₀ alkyl (wherein the substituent(s) are independently halo, nitro, sulfo, oxo, amino, cyano, carboxy, hydroxy or moieties derived therefrom), phenyl, substituted phenyl (wherein the substituent(s) are independently C₁₋₃ alkyl, halo nitro, sulfo, oxo, amino, cyano, carboxy, hydroxy, acetamido or moieties derived therefrom), furyl or thienyl; and M is hydrogen, an alkali metal or ammonium salt residue. Of these, most preferred sulfinic acid compound is lithium p-toluenesulfinate, sodium p-toluenesulfinate, potassium p-toluenesulfinate, p-toluenesulfinic acid, ammonium p-toluenesulfinate, lithium benzenesulfinate, sodium benzenesulfinate, potassium benzenesulfinate, benzenesulfinic acid or ammonium benzenesulfinate. This invention is well suited to a process for the conversion of an allyl ester of 5R,6S-6-(1R-hydroxyethyl)-2-(1R-oxo-3S-thiolanylthio)-2-penem-3-carboxylic acid to 5R,6S-6-(1R-hydroxyethyl)-2-(1R-oxo-3S-thiolanylthio)-2-penem-3-carboxylic acid.

  本发明涉及一种从烯丙基或烯丙氧羰基保护的化合物（如烯丙基酯、碳酸酯、氨基甲酸酯、O-烯丙基衍生物或N-烯丙基衍生物）中去除烯丙基或烯丙氧羰基基团的方法，该方法包括在反应惰性溶剂中，在钯催化剂的存在下，将烯丙基或烯丙氧羰基保护的化合物与亚磺酸化合物接触。优选地，亚磺酸化合物具有以下通式：X-SO₂M (I)，其中X为C₁₋₂₀烷基、取代的C₁₋₂₀烷基（其中取代基独立地为卤素、硝基、磺基、氧代、氨基、氰基、羧基、羟基或由此衍生的基团）、苯基、取代的苯基（其中取代基独立地为C₁₋₃烷基、卤素、硝基、磺基、氧代、氨基、氰基、羧基、羟基、乙酰氨基或由此衍生的基团）、呋喃基或噻吩基；M为氢、碱金属或铵盐残基。其中，最优选的亚磺酸化合物为锂对甲苯亚磺酸、钠对甲苯亚磺酸、钾对甲苯亚磺酸、对甲苯亚磺酸、铵对甲苯亚磺酸、锂苯亚磺酸、钠苯亚磺酸、钾苯亚磺酸、苯亚磺酸或铵苯亚磺酸。本发明特别适用于将5R,6S-6-(1R-羟乙基)-2-(1R-氧代-3S-硫杂环己硫基)-2-青霉烯-3-羧酸的烯丙基酯转化为5R,6S-6-(1R-羟乙基)-2-(1R-氧代-3S-硫杂环己硫基)-2-青霉烯-3-羧酸的过程。
• Acid- and radical-generating agent and method for generating acid and radical
  申请人：FUJIFILM Wako Pure Chemical Corporation

  公开号：US10451967B2

  公开（公告）日：2019-10-22

  It is a subject of the present invention to provide an acid- and radical-generating agent which has high sensitivity to an active energy ray having a wavelength of around 300 to 450 nm, and can exert both high acid-generating performance and high radical-generating performance, and has heat resistance; and a method for generating an acid and a radical. The present invention relates to a compound represented by the general formula (A); an acid- and radical-generating agent comprising the compound; and a method for generating an acid and a radical: wherein n pieces of R1 each independently represent an alkyl group, which may have a specific functional group in the chain, or in which a hydrogen atom may be substituted by a halogen atom; an alkoxy group, in which a hydrogen atom may be substituted by a halogen atom; an aryl group or an aryloxy group, in which a hydrogen atom may be substituted by a halogen atom, an alkyl group or a haloalkyl group; or an arylalkyl group or an arylalkyloxy group, in which a hydrogen atom may be substituted by a halogen atom, an alkyl group or a haloalkyl group; n pieces of R2 and R3 each independently represent a hydrogen atom, an alkyl group or an alkoxycarbonyl group; R4 to R7 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkenyl group, an aryl group, an alkoxycarbonyl group, a dialkylamino group or a nitro group; Y represents an oxygen atom, a sulfur atom, or a carbonyl group; n pieces of Z each independently represent a sulfonyl group or an alkoxyphosphoryl group; n represents 1 or 2.

  本发明的一个目的是提供一种对波长约为300至450纳米的活性能量射线具有高灵敏度的酸和自由基生成剂，能够发挥高酸生成性能和高自由基生成性能，并具有耐热性；以及一种生成酸和自由基的方法。本发明涉及一种由通式（A）表示的化合物；包括该化合物的酸和自由基生成剂；以及生成酸和自由基的方法：其中n个R1分别独立表示一种烷基基团，该烷基基团可能在链中具有特定的功能基团，或者氢原子可能被卤原子取代；一种烷氧基团，其中氢原子可能被卤原子取代；一种芳基或芳氧基，其中氢原子可能被卤原子，烷基或卤代烷基取代；或一种芳基烷基或芳基氧基，其中氢原子可能被卤原子，烷基或卤代烷基取代；n个R2和R3分别独立表示氢原子，烷基基团或烷氧羰基团；R4到R7分别独立表示氢原子，卤原子，烷基基团，烷氧基团，烯基基团，芳基，烷氧羰基团，二烷基氨基团或硝基；Y表示氧原子，硫原子或羰基；n个Z分别独立表示磺酰基或烷氧基磷酰基；n表示1或2。