2-乙氧基乙基戊酸酯 | 34912-28-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 2-乙氧基乙基戊酸酯
• 英文名称: 2-ethoxyethyl pentanoate
• 英文别名: Valeric acid, 2-ethoxyethyl ester
• CAS: 34912-28-2
• 化学式: C₉H₁₈O₃
• 分子量: 174.24
• InChiKey: LNLKWQDISSHMLL-UHFFFAOYSA-N

物化性质

• 沸点：
  225.9±13.0 °C(Predicted)
• 密度：
  0.932±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  12
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  乙酰丙酸 、 alkaline earth salt of/the/ methylsulfuric acid 在 氢气 作用下， 199.84 ℃ 、4.0 MPa 条件下， 反应 4.0h， 生成 戊酸丁酯 、 2-乙氧基乙基戊酸酯 、 γ-戊内酯 、 正戊酸
  参考文献：
  名称：

  Ruthenium-catalyzed hydrogenation of levulinic acid: Influence of the support and solvent on catalyst selectivity and stability

  摘要：

  The catalytic performance of 1 wt% Ru-based catalysts in the hydrogenation of levulinic acid (LA) has been studied at 40 bar H-2 and 473 K. This was done by assessing the influence of the support acidity (i.e., Nb2O5, TiO2, H-beta, and H-ZSM5) and solvent (i.e., dioxane, 2-ethylhexanoic acid (EHA), and neat LA). The Ru/TiO2 gave excellent selectivity to gamma-valerolactone (GVL) (97.5%) at 100% conversion and was remarkably stable even under severe reaction conditions. Ru/H-ZSM5 showed a 45.8% yield of pentanoic acid (PA) and its esters in dioxane, which is the first example of this one-pot conversion directly from LA at 473 K. The gradual deactivation of zeolite-supported catalysts in EHA and neat LA was mainly caused by dealumination, as confirmed by Al-27 MAS NMR. Coke buildup originated from angelicalactone and, remarkably, occurred preferentially in the zigzag channels of H-ZSM5 as shown by systematic shifts in the XRD patterns. The GVL ring-opening step is considered to be the rate-determining step on the pathway to PA, necessitating an acidic support. (C) 2013 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.jcat.2013.02.003

文献信息

• SOLID CATALYST FOR PROPYLENE POLYMERIZATION AND METHOD OF PRODUCING BLOCK COPOLYMER USING THE SAME
  申请人：Hanwha Total Petrochemical Co., Ltd.

  公开号：EP3670546A1

  公开（公告）日：2020-06-24

  The present invention relates to a solid catalyst for propylene polymerization and a method of producing a propylene polymer or copolymer using the solid catalyst for propylene polymerization, and provides a solid catalyst which prepares a dialkoxymagnesium carrier and is formed of a carrier produced through a reaction of the carrier with a metal halide, a titanium halide, an organic electron donor, etc., and a method of producing a propylene polymer or copolymer through copolymerization of propylene-alpha olefin using the solid catalyst, wherein the dialkoxymagnesium carrier has an uniform particle size range of 10 to 100 µm and a spherical particle shape by adjusting injection amounts, injection numbers, and reaction temperatures of metal magnesium, alcohol and a reaction initiator during a reaction process of metal magnesium and alcohol. Particularly, the present invention not only can produce polypropylene having high activity, excellent stereoregularity and hydrogen reactivity by performing a polymerization process through a solid catalyst which uses an internal electron donor including a carbonyl group and an alkoxy group out of two or more organic electron donors and is suggested in the present invention and a method of producing a propylene polymer or copolymer using the solid catalyst, but also can produce a block copolymer with a high rubber content by performing a copolymerization process with an alpha olefin.

  本发明涉及一种用于丙烯聚合的固体催化剂和一种使用该用于丙烯聚合的固体催化剂生产丙烯聚合物或共聚物的方法，并提供了一种固体催化剂，该催化剂制备了一种二羰基镁载体，并由载体与金属卤化物、钛卤化物、有机电子供体等反应生成的载体形成、以及使用该固体催化剂通过丙烯-α-烯烃的共聚生产丙烯聚合物或共聚物的方法，其中通过在金属镁和醇的反应过程中调整金属镁、醇和反应引发剂的注入量、注入次数和反应温度，该二烷氧基镁载体具有 10 至 100 微米的均匀粒径范围和球形颗粒形状。 特别是，本发明不仅可以通过固体催化剂进行聚合过程生产出具有高活性、优异立体规整性和氢反应性的聚丙烯，该固体催化剂使用了本发明中提出的在两个或多个有机电子供体中包括一个羰基和一个烷氧基的内部电子供体，以及使用该固体催化剂生产丙烯聚合物或共聚物的方法，还可以通过与α-烯烃进行共聚过程生产出橡胶含量高的嵌段共聚物。
• COMPOUNDS THAT STIMULATE GLUCOSE UTILIZATION AND METHODS OF USE
  申请人：The Governors of the University of Alberta

  公开号：EP1499580B1

  公开（公告）日：2012-03-28
• Solid Catalyst For Propylene Polymerization And Method Of Producing Block Copolymer Using The Same
  申请人：HANWHA TOTAL PETROCHEMICAL CO., LTD.

  公开号：US20200199266A1

  公开（公告）日：2020-06-25

  The present invention relates to a solid catalyst for propylene polymerization and a method of producing a propylene polymer or copolymer using the solid catalyst for propylene polymerization, and provides a solid catalyst which prepares a dialkoxymagnesium carrier and is formed of a carrier produced through a reaction of the carrier with a metal halide, a titanium halide, an organic electron donor, etc., and a method of producing a propylene polymer or copolymer through copolymerization of propylene-alpha olefin using the solid catalyst, wherein the dialkoxymagnesium carrier has an uniform particle size range of 10 to 100 μm and a spherical particle shape by adjusting injection amounts, injection numbers, and reaction temperatures of metal magnesium, alcohol and a reaction initiator during a reaction process of metal magnesium and alcohol.
• US9869929B2
  申请人：——

  公开号：US9869929B2

  公开（公告）日：2018-01-16
• Ruthenium-catalyzed hydrogenation of levulinic acid: Influence of the support and solvent on catalyst selectivity and stability
  作者：Wenhao Luo、Upakul Deka、Andrew M. Beale、Ernst R.H. van Eck、Pieter C.A. Bruijnincx、Bert M. Weckhuysen

  DOI：10.1016/j.jcat.2013.02.003

  日期：2013.5

  The catalytic performance of 1 wt% Ru-based catalysts in the hydrogenation of levulinic acid (LA) has been studied at 40 bar H-2 and 473 K. This was done by assessing the influence of the support acidity (i.e., Nb2O5, TiO2, H-beta, and H-ZSM5) and solvent (i.e., dioxane, 2-ethylhexanoic acid (EHA), and neat LA). The Ru/TiO2 gave excellent selectivity to gamma-valerolactone (GVL) (97.5%) at 100% conversion and was remarkably stable even under severe reaction conditions. Ru/H-ZSM5 showed a 45.8% yield of pentanoic acid (PA) and its esters in dioxane, which is the first example of this one-pot conversion directly from LA at 473 K. The gradual deactivation of zeolite-supported catalysts in EHA and neat LA was mainly caused by dealumination, as confirmed by Al-27 MAS NMR. Coke buildup originated from angelicalactone and, remarkably, occurred preferentially in the zigzag channels of H-ZSM5 as shown by systematic shifts in the XRD patterns. The GVL ring-opening step is considered to be the rate-determining step on the pathway to PA, necessitating an acidic support. (C) 2013 Elsevier Inc. All rights reserved.