2-Amyl-pentandiol-(1,5) | 18755-35-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-Amyl-pentandiol-(1,5)
• 英文别名: 2-pentyl-pentane-1,5-diol；2-pentyl-1,5-pentanediol；2-Pentylpentane-1,5-diol
• CAS: 18755-35-6
• 化学式: C₁₀H₂₂O₂
• 分子量: 174.283
• InChiKey: RQIBHODYTPEFLO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  12
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-戊基丙二酸二乙酯 在 氢氧化钾 、 lithium aluminium tetrahydride 、 甲烷磺酸 、 氢溴酸 作用下， 以 甲醇 、 乙醚 、 叔丁醇 、 苯 为溶剂， 反应 96.5h， 生成 2-Amyl-pentandiol-(1,5)
  参考文献：
  名称：

  Reaction of .alpha.-olefins with paraformaldehyde and hydrogen halides. Novel tetrahydropyran synthesis

  摘要：

  DOI：

  10.1021/jo01255a001

文献信息

• PROCESS FOR PREPARING 1,5-PENTANEDIOL DERIVATIVE
  申请人：Kyowa Yuka Co., Ltd.

  公开号：EP0807617A1

  公开（公告）日：1997-11-19

  (In the formulae, R1 and R2, which may be the same or different, each represents hydrogen or lower alkyl.) The present invention relates to a process for producing 1,5-pentanediol derivatives represented by general formula (II) which comprises reacting 2-butenal derivatives represented by general formula (I) with formaldehyde, and hydrogenating the obtained mixture of reaction products.

  (在式中，R1和R2可以相同或不同，各自代表氢或低级烷基）。 本发明涉及一种生产通式（II）所代表的 1,5-戊二醇衍生物的工艺，该工艺包括使通式（I）所代表的 2-丁烯醛衍生物与甲醛反应，并对得到的反应产物混合物进行氢化。
• HIGH-UNIFORMITY COLOURED POLYESTER INDUSTRIAL YARN AND PREPARATION METHOD THEREFOR
  申请人：Jiangsu Hengli Chemical Fibre Co., Ltd.

  公开号：EP3508624A1

  公开（公告）日：2019-07-10

  The invention relates to a high uniformity coloured polyester industrial yarn and its preparation method. The raw material of the high-uniformity coloured polyester industrial yarn is the modified polyester composed of terephthalic acid segment, an ethylene glycol segment and a branched diol. The high-uniformity coloured polyester industrial yarn is prepared by the esterification reaction of terephthalic acid with a branched diol using concentrated sulfuric acid as catalyst to obtain a terephthalic acid glycol ester. Terephthalic acid and ethylene glycol are formulated to carry out esterification reaction to obtain ethylene terephthalate. Finally, stir and mix the two materials and carry out the polycondensation reaction in the low vacuum stage and the high vacuum stage under the action of the catalyst and the stabilizer to obtain modified polyester. Measure the modified polyester and add black masterbatch. After porous spinneret extrusion, cooling, oiling, drawing, heat setting and winding the modified polyester, we can obtain high uniformity coloured polyester industry yarn.

  本发明涉及一种高均匀度彩色涤纶工业丝及其制备方法。高均匀度彩色涤纶工业丝的原料是由对苯二甲酸段、乙二醇段和支链二元醇组成的改性聚酯。高均匀度彩色涤纶工业丝是以浓硫酸为催化剂，通过对苯二甲酸与支链二元醇的酯化反应得到对苯二甲酸乙二醇酯。对苯二甲酸和乙二醇经配制后进行酯化反应，得到对苯二甲酸乙二醇酯。最后，将两种材料搅拌混合，在催化剂和稳定剂的作用下，在低真空阶段和高真空阶段进行缩聚反应，得到改性聚酯。测量改性聚酯并加入黑色母料。改性聚酯经多孔喷丝板挤出、冷却、上油、牵伸、热定型和卷绕后，可得到高均匀度的彩色聚酯工业丝。
• Modified polyester and its preparation method
  申请人：JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

  公开号：US10465041B2

  公开（公告）日：2019-11-05

  A method for preparing the modified polyester. The modified polyester segments include terephthalic acid segment, ethylene glycol diol segment and branched diol segment, in which the branched diol segment refers to a diol segment in which a branch is located on a non-terminal carbon in the glycol segment and the branch is a linear carbon chain having 5 to 10 carbon atoms. The method includes preparing terephthalic acid glycol ester through the esterification of terephthalic acid and branched diol using the concentrated sulfuric acid as the catalyst. Then get ethylene terephthalate through the esterification of terephthalic acid and ethylene glycol. After stirring and mixing the two, the modified polyester can be obtained through polycondensation reaction of a low vacuum stage and a high vacuum stage using the catalyst and stabilizer.

  一种制备改性聚酯的方法。改性聚酯段包括对苯二甲酸段、乙二醇段和支链二元醇段，其中支链二元醇段是指在乙二醇段的非末端碳上有分支的二元醇段，分支是具有 5 至 10 个碳原子的线性碳链。该方法包括以浓硫酸为催化剂，通过对苯二甲酸和支链二元醇的酯化反应制备对苯二甲酸乙二醇酯。然后通过对苯二甲酸和乙二醇的酯化反应得到对苯二甲酸乙二醇酯。将二者搅拌混合后，利用催化剂和稳定剂，通过低真空阶段和高真空阶段的缩聚反应，即可得到改性聚酯。
• Different shrinkage composite yarn and its preparation method
  申请人：JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

  公开号：US10590564B2

  公开（公告）日：2020-03-17

  A different shrinkage composite yarn and preparation method. The modified polyester is spun with a porous spinneret to produce a different shrinkage composite yarn, and the spinneret holes on the porous spinneret are arranged in an elliptical arrangement. The different shrinkage composite yarn is obtained by winding modified polyester POY yarn and FDY yarn, network recombining, and coiling them. The preparation method of modified polyester is as follows: terephthalic acid reacts with ethylene glycol to produce ethylene terephthalate. The modified polyester is obtained by the reaction of terephthalic acid with branched diol. The fiber of the invention has good properties and the deviation rate of fiber density. The CV value of breaking strength is ≤4.0%, the CV value of elongation at break is ≤8.0%, the CV value of coefficient of variation of coiling shrinkage is ≤8.0%.

  一种不同收缩率复合纱线及制备方法。用多孔喷丝板纺制改性涤纶异收缩复合纱，多孔喷丝板上的喷丝孔呈椭圆形排列。改性聚酯 POY 纱和 FDY 纱通过卷绕、网络重组和卷绕得到异收缩复合纱。改性聚酯的制备方法如下：对苯二甲酸与乙二醇反应生成对苯二甲酸乙二醇酯。对苯二甲酸与支链二元醇反应得到改性聚酯。本发明的纤维具有良好的性能和纤维密度偏差率。断裂强度 CV 值≤4.0%，断裂伸长率 CV 值≤8.0%，卷曲收缩变异系数 CV 值≤8.0%。
• High-uniformity coloured polyester industrial yarn
  申请人：JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

  公开号：US10801132B2

  公开（公告）日：2020-10-13

  A high uniformity coloured polyester industrial yarn and preparation method. The raw material of the high-uniformity coloured polyester industrial yard is the modified polyester composed of terephthalic acid segment, an ethylene glycol segment and a branched diol. The high-uniformity coloured polyester industrial yarn is prepared by esterification reaction of terephthalic acid with a branched diol using concentrated sulfuric acid as catalyst to obtain terephthalic acid glycol ester. Terephthalic acid and ethylene glycol are formulated to carry out esterification reaction to obtain ethylene terephthalate. Finally, stir and mix the two materials and carry out the polycondensation reaction in the low vacuum stage and the high vacuum stage under the action of the catalyst and the stabilizer to obtain modified polyester. Measure the modified polyester and add black masterbatch. After porous spinneret extrusion, cooling, oiling, drawing, heat setting and winding the modified polyester, high uniformity coloured polyester industry yarn is obtained.

  一种高均匀度彩色聚酯工业丝及制备方法。高均匀度彩色涤纶工业丝的原料是由对苯二甲酸段、乙二醇段和支链二元醇组成的改性聚酯。高均匀度彩色聚酯工业丝是以浓硫酸为催化剂，将对苯二甲酸与支链二元醇进行酯化反应，得到对苯二甲酸乙二醇酯。对苯二甲酸和乙二醇经配制后进行酯化反应，得到对苯二甲酸乙二醇酯。最后，将两种材料搅拌混合，在催化剂和稳定剂的作用下，在低真空阶段和高真空阶段进行缩聚反应，得到改性聚酯。测量改性聚酯并加入黑色母料。改性聚酯经多孔喷丝板挤出、冷却、上油、牵伸、热定型和卷绕后，得到高均匀度的彩色聚酯工业丝。