2,5,8,11,14,17,20,23,26-九氧杂二十七烷 | 25990-94-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2,5,8,11,14,17,20,23,26-九氧杂二十七烷
• 英文名称: octaethylene glycol dimethyl ether
• 英文别名: octaglyme；1,23-dimethoxy-3,6,9,12,15,18,21-heptaoxa-tricosane；O,O'-dimethyl-octaethylene glycol；2,5,8,11,14,17,20,23,26-nonaoxaheptacosane；Octaethylenglykoldimethylether；Octaglym；1-methoxy-2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethane
• CAS: 25990-94-7
• 化学式: C₁₈H₃₈O₉
• 分子量: 398.494
• InChiKey: HKKZPBCWTDFVFB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.2
• 重原子数：
  27
• 可旋转键数：
  24
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  83.1
• 氢给体数：
  0
• 氢受体数：
  9

安全信息

• 海关编码：
  2901100000

反应信息

• 作为反应物：
  描述：

  2,5,8,11,14,17,20,23,26-九氧杂二十七烷 在 sodium picrate 作用下， 以 甲苯 为溶剂， 生成 octaethylene glycol dimethyl ether and sodium picrate complex
  参考文献：
  名称：

  冠醚、甘醇二甲醚和多胺对甲苯中的苦味酸碱的亲和力。聚合物负载的线性聚醚的应用

  摘要：

  Mesure des valeurs des constantes de stabilite。Les ethers monomethyliques desglycos semblent etre legerement meilleurs complexants des alcalins que les glymes 通讯员

  DOI：

  10.1021/ja00325a013
• 作为产物：
  描述：

  三缩四乙二醇 在 吡啶 、 sodium 作用下， 反应 4.0h， 生成 2,5,8,11,14,17,20,23,26-九氧杂二十七烷
  参考文献：
  名称：

  Structural requirements for glyme catalysis in butylaminolysis of aryl acetates in chlorobenzene. Identification of -OCH2CH2OCH2CH2OCH2CH2O- as the optimal subunit for catalysis

  摘要：

  The catalytic behavior of linear (open-chain) polyethers (glymes) in butylaminolysis of 4-nitrophenyl acetate carried out in chlorobenzene has been reexamined (J. Am. Chem. Soc. 1980, 102, 2865-2866). The observation of a break in a plot of the catalytic rate constant vs chain length of catalyst indicates that four oxygens in a -OCH2CH2OCH2CH2OCH2CH2O-subunit are necessary for optimal catalysis. The break, occurring at four oxygens in the profile (corresponds to triglyme), has been verified by a Hammett analysis, which employed four additional aryl acetates (3-chlorophenyl, 3-bromophenyl, 3-cyanophenyl, and 4-cyanophenyl). This break was missed in a previous study (J. Am. Chem. Soc. 1980, 102, 2865-2866) because differing amounts of impurities in the glymes increased the experimental scatter of the data. The Hammett study supports the conclusions of others that breakdown of the zwitterionic tetrahedral intermediate is rate-limiting. The break in the polyether plot implies a specific structure for a glyme-zwitterionic tetrahedral intermediate complex, which contains an ammonium ion that hydrogen bonds to the ether oxygens.

  DOI：

  10.1021/jo00008a044

文献信息

• NOVEL BETA-HYDROXYLATED TERTIARY DIAMINES, A PROCESS FOR THEIR SYNTHESIS AND THEIR USE FOR ELIMINATING ACID COMPOUNDS A GASEOUS EFFLUENT
  申请人：IFP Energies nouvelles

  公开号：US20170081275A1

  公开（公告）日：2017-03-23

  The invention relates to novel nitrogen compounds belonging to the family of tertiary diamines of general formula (I) below, wherein R is an alkanediyl radical —(CH 2 )n- with n=2, 3, 4, 5 or 6. The compound according to the invention is for example N,N,N′,N′-(tetramethyl)-1,6-diamino-2,5-hexanediol or N,N,N′,N′-(tetramethyl)-1,8-diamino-2,7-octanediol. The invention also relates to the method for preparing them and to their use for removing acid compounds contained in a gaseous effluent.

  该发明涉及一类新型氮化合物，属于以下通式（I）的三级二胺家族，其中R是烷二基基团—(CH2)n-，其中n=2, 3, 4, 5或6。根据该发明的化合物例如为N,N,N′,N′-(四甲基)-1,6-二氨基-2,5-己二醇或N,N,N′,N′-(四甲基)-1,8-二氨基-2,7-辛二醇。该发明还涉及其制备方法以及它们用于去除气态废气中含有的酸性化合物的用途。
• Process for dehydrating 2-methylpentane-2,4-diol
  申请人：Springer Helmut

  公开号：US20060058561A1

  公开（公告）日：2006-03-16

  A process for dehydrating 2-methylpentanediol-2,4 to a mixture of 2-methyl-1,3-pentadiene and 4-methyl-1,3-pentadiene at elevated temperature in the presence of an acid catalyst using a polyglycol ether as a heat carrier, wherein a polyglycol ether containing from 80 to 100% by weight of a polyethylene glycol dimethyl ether of the formula CH 3 (OCH 2 CH 2 ) n OCH 3 where n=2-8 and from 0 to 20% by weight of a polyethylene glycol monomethyl ether of the formula CH 3 (OCH 2 CH 2 ) n OH where n=2-8 based in each case on the total mass of polyglycol ether, is used.

  一种将2-甲基戊二醇-2,4脱水成为2-甲基-1,3-戊二烯和4-甲基-1,3-戊二烯的混合物的方法，该方法在存在酸性催化剂的情况下，在高温下使用聚乙二醇醚作为热载体，其中聚乙二醇醚含有80至100重量％的聚乙二醇二甲醚(CH3(OCH2CH2)nOCH3，其中n=2-8)和0至20重量％的聚乙二醇单甲醚(CH3(OCH2CH2)nOH，其中n=2-8)，每种情况下基于聚乙二醇醚的总质量。
• FUNCTIONALIZED CYANINE DYES (PEG)
  申请人：Shen Gene

  公开号：US20120058482A1

  公开（公告）日：2012-03-08

  The invention provides a novel class of cyanine dyes that are functionalized with a linker moiety that facilitates their conjugation to other species and substituent groups which increase the water-solubility, and optimize the optical properties of the dyes. Also provided are conjugates of the dyes, methods of using the dyes and their conjugates and kits including the dyes and their conjugates.

  本发明提供了一种新型的靛蓝染料类，它们被功能化了连接子基团，这有助于将它们与其他物种和取代基团共价结合，从而增加了水溶性并优化了染料的光学性能。同时，还提供了染料的共价物，使用这些染料及其共价物的方法以及包括这些染料及其共价物的试剂盒。
• Process for preparing metal cyanide complex catalyst
  申请人：ARCO Chemical Technology, L.P.

  公开号：EP0555053A1

  公开（公告）日：1993-08-11

  Highly active double metal cyanide complex catalysts suitable for use in ring-opening polymerization reactions are prepared in filterable form by adding an aqueous solution of a stoichiometric excess of a first metal salt to an aqueous solution of an alkali metal cyano-metallate while maintaining the temperature of the latter in the range 30°C to 75°C, and arranging for either or both of the solutions to contain a water-miscible heteroatom-containing organic ligand or for the slurry obtained by combining the solutions to be contacted with such an organic ligand.

  适用于开环聚合反应的高活性双金属氰化物络合物催化剂的制备方法是：在碱金属氰基金属盐的水溶液中加入按一定比例过量的第一金属盐的水溶液，同时将后者的温度保持在 30°C 至 75°C 之间，并使其中一种或两种溶液都含有可与水混溶的含杂原子的有机配位体，或使通过将溶液与这种有机配位体混合而得到的浆液与这种有机配位体接触，从而制备出可过滤形式的高活性双金属氰化物络合物催化剂、并使其中一种或两种溶液含有可与水混溶的含杂原子的有机配体，或使将两种溶液混合后得到的浆液与这种有机配体接触。
• Printing ink, and decorated sheet obtained using the same
  申请人：TEIKOKU PRINTING INKS MFG. CO., LTD

  公开号：EP1493786A1

  公开（公告）日：2005-01-05

  The invention provides a printing ink for printing on a decorated sheet for application to integral molding of synthetic resin, which is less capable of curling the decorated sheet and less susceptible to run during molding. The printing ink comprises a compound having the following formula (1) or (2) together with a polycarbonate resin binder and a solvent for the same.

  本发明提供了一种印刷油墨，用于在合成树脂整体模塑的装饰片材上印刷，这种油墨不易使装饰片材卷曲，也不易在模塑过程中流淌。该印刷油墨由具有下式（1）或（2）的化合物、聚碳酸酯树脂粘合剂和溶剂组成。