壬烷-4,5-二酮 | 24610-09-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 壬烷-4,5-二酮
• 英文名称: nonane-4,5-dione
• 英文别名: Nonan-4,5-dion；4,5-Nonanedione
• CAS: 24610-09-1
• 化学式: C₉H₁₆O₂
• 分子量: 156.225
• InChiKey: RTPIKNDFJYHOKH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  壬烷-4,5-二酮 生成 nonane-4,5-dione dioxime
  参考文献：
  名称：

  Cuvigny, Annales de Chimie (Cachan, France), 1956, vol. <13> 1, p. 475,489

  摘要：

  DOI：
• 作为产物：
  描述：

  壬-4,5-二烯 在 4 A molecular sieve 二甲基二环氧乙烷 、 silica gel 、 potassium carbonate 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 反应 3.33h， 生成 壬烷-4,5-二酮
  参考文献：
  名称：

  1,4-Dioxaspiro[2.2]pentanes. Synthesis, spectroscopic properties, and reactions with nucleophiles

  摘要：

  A number of simple allenes have been converted cleanly to the corresponding 1,4-dioxaspiro[2.2]pentanes in good yields by oxidation with dimethyldioxirane. Mono- and trisubstituted allenes give the anti diastereomers with good stereoselectivity, whereas 1,3-disubstituted allenes show only a slight preference for the anti,anti isomers, unless steric effects are extreme. Stereochemical assignments are based on steric considerations and a consistent set of NMR characteristics that permit structural attributions. The addition of a range of nucleophiles (water, alcohols, amines, thiophenol, acetate, chloride, and fluoride) to these intermediates proceeded smoothly under buffered conditions to give highly functionalized products of general type 5. These reactions were shown to take place with the appropriate selectivities for S(N)2 substitutions in instances where these features were observable, namely, regioselective attack at the less-substituted epoxide carbon and inversion of configuration at the site of substitution. Under acidic conditions dioxaspiropentanes gave mixtures of other types of products, which appear to arise from carbocationic processes.

  DOI：

  10.1021/jo00003a044

文献信息

• A direct conversion ofvic-diols into 1, 2-diketones with aqueous hydrogen peroxide catalyzed by peroxotungstophosphate (PCWP)
  作者：Takahiro Iwahama、Satoshi Sakaguchi、Yutaka Nishiyama、Yasutaka Ishii

  DOI：10.1016/0040-4039(95)00075-n

  日期：1995.2

  α-Hydroxy ketones and vic-diols were successfully oxidized to the corresponding diketones with aqueous hydrogen peroxide in the presence of a catalytic amount of peroxotungstophosphate (PCWP). This method provides a straightforward route of 1, 2-diketones which are difficult to prepare by conventional oxidation of vic-diols.

  在催化量的过氧磷钨磷酸盐（PCWP）存在下，用过氧化氢水溶液将α-羟基酮和vic-二醇成功氧化为相应的二酮。该方法提供了1，2-二酮的简单路线，这是常规的vic-二醇氧化难以制备的。
• Novel and catalytic oxidation of internal epoxides to α-diketones
  作者：Sylvain Antoniotti、Elisabet Duñach

  DOI：10.1039/b106110k

  日期：2001.12.19

  A catalytic system based on Bi(0)–Cu(OTf)2 is efficient for the selective one-pot oxidation of 1,2-disubstituted epoxides to α-diketones under molecular oxygen and DMSO.

  基于Bi(0)âCu(OTf)2的催化体系可在分子氧和二甲基亚砜条件下高效地将1,2-二取代环氧化物选择性地一锅氧化成δ-二酮类化合物。
• NOVEL BIPYRIDYL DERIVATIVES
  申请人：Sankio Chemical Co., Ltd.

  公开号：EP1231207A1

  公开（公告）日：2002-08-14

  Provided are novel specific dipyridyl derivatives as a useful substance or an intermediate in the fields of pharmaceuticals, agrichemicals, ligands, silver halide photosensitive materials, liquid crystals, surfactants, electrophotography and organic electroluminescence.

  本文提供了新型特异性二吡啶衍生物，可作为有用物质或中间体用于制药、农用化学品、配体、卤化银感光材料、液晶、表面活性剂、电致发光和有机电致发光领域。
• METHOD FOR PRODUCING METAL PARTICLE DISPERSION, CONDUCTIVE INK USING METAL PARTICLE DISPERSION PRODUCED BY SUCH METHOD, AND CONDUCTIVE COATING FILM
  申请人：Toyo Ink Mfg. Co., Ltd

  公开号：EP1952918A1

  公开（公告）日：2008-08-06

  Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.

  本发明公开了一种生产金属颗粒分散液的方法，该方法通过在液体介质中使用下式 (1) 所代表的碳二酰肼或下式 (2) 所代表的多基酸多酰肼（其中 R 代表正价多基酸残基）还原金属化合物。通过在具有防止金属褪色功能的化合物存在下还原金属化合物，可获得具有优异防褪色性能的金属颗粒分散液。通过这种方法制得的金属颗粒具有均匀的颗粒直径和出色的分散稳定性。使用含有通过这种生产方法获得的金属颗粒分散体的导电树脂组合物或导电墨水，可以形成具有良好特性的导电涂膜，例如导电电路或电磁层。
• COLORED METALLIC PIGMENT, PROCESS FOR PRODUCING THE SAME, AND COATING COMPOSITION AND COSMETIC PREPARATION COMPRISING SAID COLORED METALLIC PIGMENT
  申请人：TOYO ALUMINIUM KABUSHIKI KAISHA

  公开号：EP1990377A1

  公开（公告）日：2008-11-12

  This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer. In the colored metallic pigment, the metal layer preferably comprises at least one metal selected from Sn, Pd, Pt and Au. The metallic particle preferably comprises at least one metal selected from Cu, Ni and Ag.

  本发明提供了一种彩色金属颜料，它能在保持良好的耐光性、耐候性和遮盖力的同时，显现出多种颜色和各种干扰色；还提供了一种生产彩色金属颜料的工艺；一种含有该彩色金属颜料并能提供具有良好成品外观的涂膜的涂料组合物；以及一种含有该彩色金属颜料、具有良好遮盖力并能提供鲜明色调的化妆品制剂。彩色金属颜料至少包括金属颜料、设置在金属颜料表面的非晶氧化硅薄膜层、设置在非晶氧化硅薄膜层表面的金属层以及设置在金属层表面的金属颗粒。金属颗粒的设置是为了直接覆盖金属层的部分表面。在有色金属颜料中，金属层最好包括至少一种选自 Sn、Pd、Pt 和 Au 的金属。金属颗粒最好包括至少一种选自铜、镍和银的金属。