N'-(2-Hydroxybenzylidene)formic hydrazide | 3155-65-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: N'-(2-Hydroxybenzylidene)formic hydrazide
• 英文别名: N-[(E)-(2-hydroxyphenyl)methylideneamino]formamide
• CAS: 3155-65-5
• 化学式: C₈H₈N₂O₂
• 分子量: 164.16
• InChiKey: ACICHHRSFBFNPI-WEVVVXLNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  61.7
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• 海关编码：
  2928000090

文献信息

• Polymer solutions
  申请人：COURTAULDS FIBRES (HOLDINGS) LIMITED

  公开号：EP0764685A2

  公开（公告）日：1997-03-26

  A method of making a solution of a polysaccharide, particularly cellulose, in an aqueous tertiary amine N-oxide solvent which exhibits good thermal stability is disclosed. The solution contains at least one compound selected from the group consisting of compounds of the formula ArCR1=NNR2R3, where Ar represents an aromatic group which comprises an aromatic ring having six pi-electrons and substituted by a hydroxy group in the ortho position, optionally further substituted on the aromatic ring; R1 represents hydrogen or C1-C4 n-alkyl; R2 represents hydrogen, C1-C4 alkyl or C6-C10 aryl; and R3 represents hydrogen, C1-C4 alkyl, C6-C10 aryl or R4CO, where R4 represents hydrogen, C1-C4 alkyl, C6-C10 aryl, XCONR2NH2 or XCONR2N=CR1Ar, where X represents a chemical bond, a C1-C4 alkylene or C2-C4 alkylidene group or a C6-C10 arylene group; or R2 and R3 together represent ArCR1; and of one or more precursors of such compounds; and of compounds of the formula R5CONR1NH2 wherein R5 represents hydrogen, C1-4 alkyl, C6-10 aryl or XCONR1NH2. When the groups R2, R3 and R4 are alkyl or aryl groups, they may optionally be substituted alkyl or aryl groups. When the groups R2, R3 and R4 are aryl groups, they may optionally be carbocyclic or heterocyclic aryl groups. The solutions are suited to being formed into extruded articles such as fibres and films.

  本发明公开了一种在具有良好热稳定性的叔胺 N-氧化物水溶液中制备多糖（尤其是纤维素）溶液的方法。该溶液含有至少一种选自由式 ArCR1=NNR2R3 组成的化合物组的化合物，其中 Ar 代表芳香基团，该芳香基团包括一个具有六个 pi-e 电子并在正位被羟基取代的芳香环，可选择在芳香环上进一步被取代；R1 代表氢或 C1-C4 n-烷基；R2 代表氢、C1-C4 烷基或 C6-C10 芳基；和 R3 代表氢、C1-C4 烷基、C6-C10 芳基或 R4CO，其中 R4 代表氢、C1-C4 烷基、C6-C10 芳基、XCONR2NH2 或 XCONR2N=CR1Ar，其中 X 代表化学键、C1-C4 亚烷基或 C2-C4 亚烷基或 C6-C10 芳基；或 R2 和 R3 共同代表 ArCR1；以及此类化合物的一种或多种前体；以及式 R5CONR1NH2 的化合物，其中 R5 代表氢、C1-4 烷基、C6-10 芳基或 XCONR1NH2。当基团 R2、R3 和 R4 为烷基或芳基时，它们可以任选为取代的烷基或芳基。当基团 R2、R3 和 R4 为芳基时，它们可以是碳环或杂环芳基。这些溶液适合制成挤压制品，如纤维和薄膜。
• OPTICAL FILM
  申请人：SK Innovation Co., Ltd.

  公开号：EP2722355A2

  公开（公告）日：2014-04-23

  The present invention relates to a cellulose acetate film used for optical compensation and a retardation enhancer used therein, and relates to a cellulose acetate film which has a high retardation value in the thickness direction (Rth).

  本发明涉及一种用于光学补偿的醋酸纤维素薄膜及其所用的延缓增强剂，并涉及一种在厚度方向（Rth）具有高延缓值的醋酸纤维素薄膜。
• Non-toxic corrosion-protection pigments based on manganese
  申请人：——

  公开号：US20040011252A1

  公开（公告）日：2004-01-22

  Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

  以锰为基础的缓蚀颜料含有三价或四价锰/价稳定剂复合物。一种无机或有机材料可用于稳定三价或四价锰离子，从而形成一种可少量溶解、溶解度低或不溶于水的化合物，具体取决于预期用途。选择特定的稳定剂是为了控制三价锰或四价锰在遇水时的释放率，并调整粉末在所选粘合剂体系中用作颜料时的相容性。稳定剂还可以改变成型粉末的加工和处理特性。锰/价稳定剂组合的选择是基于锰配位化学的基本原理。文中介绍了许多锰价稳定剂组合，其性能与传统的六价铬或四价铅体系相当。需要强调的是，提供本摘要是为了符合要求提供摘要的规则，以便检索者或其他读者快速确定技术公开的主题。提交本摘要的前提是，本摘要不用于解释或限制权利要求的范围或含义。
• Non-toxic corrosion-protection pigments based on rare earth elements
  申请人：——

  公开号：US20040104377A1

  公开（公告）日：2004-06-03

  A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, terbium, praseodymium, or a combination thereof, and at least one rare earth element is in the tetravalent oxidation state. An inorganic or organic material is used to stabilize the tetravalent rare earth ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of tetravalent cerium, terbium, or praseodymium during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Many rare earth-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.

  一种缓蚀颜料，由稀土元素和价态稳定剂结合形成稀土/价态稳定剂复合物。稀土元素选自铈、铽、镨或它们的组合，至少有一种稀土元素处于四价氧化态。使用无机或有机材料来稳定四价稀土离子，以形成稀溶于水的化合物。选择特定的稳定剂是为了控制四价铈、铽或镨在遇水时的释放率，并调整粉末在所选粘合剂体系中用作颜料时的相容性。稳定剂还可以改变成型粉末的加工和处理特性。本文介绍了许多稀土-价稳定剂组合，其性能可与传统的六价铬体系媲美。
• Non-toxic corrosion-protection rinses and seals based on rare earth elements
  申请人：——

  公开号：US20040016910A1

  公开（公告）日：2004-01-29

  Rinsing or sealing solutions comprising a rare earth element and a valence stabilizer for barrier films. The treated films contain a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, praseodymium, terbium, or combinations thereof, and at least one rare earth element is in the tetravalent oxidation state. The rinsing or sealing solution may also contain an optional preparative or solubility control agent. The oxidized rare earth element is present in the coating in a “sparingly soluble” form. The valence stabilizers can be either inorganic or organic in nature. A number of rare earth/valence stabilizer combinations that match the performance of conventional hexavalent chromium systems are presented.