diethyl butylene-1,2-dioxamate | 89719-08-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: diethyl butylene-1,2-dioxamate
• 英文别名: Ethyl 2-[4-[(2-ethoxy-2-oxoacetyl)amino]butylamino]-2-oxoacetate；ethyl 2-[4-[(2-ethoxy-2-oxoacetyl)amino]butylamino]-2-oxoacetate
• CAS: 89719-08-4
• 化学式: C₁₂H₂₀N₂O₆
• 分子量: 288.301
• InChiKey: JJHCULFISBMZQY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  20
• 可旋转键数：
  11
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  111
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  diethyl butylene-1,2-dioxamate 、 2-胺基乙酸乙酯 在 三乙胺 作用下， 以 氯仿 为溶剂， 生成
  参考文献：
  名称：

  Synthesis, morphology and properties of segmented poly(ether ester amide)s comprising uniform glycine or β-alanine extended bisoxalamide hard segments

  摘要：

  Segmented poly(ether ester amide)s comprising glycine or beta-alanine extended bisoxalamide hard segments are highly phase separated thermoplastic elastomers with a broad temperature independent rubber plateau. These materials with molecular weights, M-n, exceeding 30 x 10(3) g mol(-1) are conveniently prepared by polycondensation of preformed bisester-bisoxalamides and commercially available PTHF diols. FT-IR revealed strongly hydrogen bonded and highly ordered bisoxalamide hard segments with degrees of ordering between 73 and 99%. The morphology consists of fiber-like nano-crystals randomly dispersed in the soft polymer matrix. The micro-structural parameters of the copolymers were addressed by simultaneous small- and wide-angle X-ray scattering. It is shown that the crystals have strictly identical thickness, which is close to the contour length of the hard segment. The long dimension of the crystals is identified with the direction of the hydrogen bonds. The melting transitions of the hard segments are sharp, with temperatures up to 170 degrees C. The studied polymers have an elastic modulus in the range of 139-170 MPa, a stress at break in the range of 19-31 MPa combined with strains at break of higher than 800%. The segmented copolymer comprising the beta-alanine based bisoxalamide hard segment with a spacer of 6 methylene groups has a melting transition of 141 degrees C which is higher than the melting transition of its glycine analogue of 119 degrees C. Likewise, the fracture stress increased from 22 to 31 MPa when the glycine ester group in the hard segment was replaced with beta-alanine. The improved thermal and mechanical properties of the latter polymers is related to the crystal packing of the beta-alanine based hard segments in the copolymer compared to the packing of the hard segments comprising glycine ester groups. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.polymer.2012.07.015
• 作为产物：
  描述：

  四亚甲基二胺 、 草酸二乙酯 以 乙醇 为溶剂， 反应 48.67h， 生成 diethyl butylene-1,2-dioxamate
  参考文献：
  名称：

  METHODS OF MAKING POLYDIORGANOSILOXANE POLYOXAMIDE COPOLYMERS

  摘要：

  描述了一种制备聚二甲基硅氧烷聚氧酰胺共聚物的方法。这些共聚物至少具有一个聚二甲基硅氧烷段和至少两个氨氧乙酰胺基团。该方法可在有溶剂或无溶剂的情况下使用。还描述了在制备共聚物过程中涉及的中间体。

  公开号：

  US20120271025A1

文献信息

• Uranyl oxamate hydrates: hydrothermal synthesis, crystal structure, photophysical properties, and selective crystallization
  作者：Yubo Shu、Weisheng Liu

  DOI：10.1007/s11426-015-5550-3

  日期：2016.6

  polymers [UO2(EDO)(H2O)]·H2O (1) and [UO2(BDO)(H2O)]·2H2O (2) (EDO2-=ethylene-1,2-dioxamate; BDO2-=butylene-1,2-dioxamate) with identical stepwise zigzag chain structure and distinct interchain hydrogen bonding interaction, prepared from hydrothermal reaction of DEEDO or DEBDO (DEEDO=diethyl ethylene-1,2-dioxamate; DEBDO=diethyl butylene-1,2-dioxamate) with uranyl ions. The monomeric uranyl-based fluorescence

  这里介绍的是两种同构的铀酰配位聚合物[UO 2（EDO）（H 2 O）]·H 2 O（1）和[UO 2（BDO）（H 2 O）]·2H 2 O（2）（EDO 2 -由DEEDO或DEBDO的水热反应制得的具有===的亚乙基1,2-二氧肟酸酯; BDO 2- =的亚丁基-1,2-二氧肟酸酯）具有相同的逐步曲折链结构和独特的链间氢键相互作用（DEEDO =二乙基-1） ，2-二草酸酯； DEBDO ＝二乙基丁烯-1,2-二草酸酯）和铀酰离子。化合物1和2的基于单体铀酰的荧光发射与六水合铀酰铀相比，它们的红移分别约为6和5 nm。化合物1的发射比化合物2的发射更强，但是它们的发射均显示三倍指数衰减。还研究了草酸铀酰三水合物的光物理性质以进行比较。将化合物1在碱性溶液中的选择性结晶应用于铀酰离子的螯合，显示出动力学偏好。
• Strictly segmented thermoplastic elastomers as biodegradable biomaterials
  申请人：SyMO-Chem B.V.

  公开号：US10556994B2

  公开（公告）日：2020-02-11

  The present invention relates to a thermoplastic elastomer according to the formula [AB]n, wherein A represents a soft block and B represents a hard block. The present invention further relates to a process for the preparation of the thermoplastic elastomer. The thermoplastic material is in particular suited for biomaterial applications, for example for implants and tissue engineering applications and for purposes including scaffolding material applications, e.g. for tissue engineering purposes.

  本发明涉及一种符合式[AB]n 的热塑性弹性体，其中 A 代表软块，B 代表硬块。本发明还涉及一种制备热塑性弹性体的工艺。该热塑性材料尤其适用于生物材料应用，例如植入物和组织工程应用，以及包括支架材料应用在内的各种用途，例如组织工程用途。
• Process for preparing a grease
  申请人：SHELL OIL COMPANY

  公开号：US10844305B2

  公开（公告）日：2020-11-24

  The invention provides for a process for preparing a lubricating grease. The process can be carried out in the presence of a base oil and avoids the use of diisocyanate reagents.

  本发明提供了一种制备润滑脂的工艺。该工艺可在有基础油的情况下进行，并避免使用二异氰酸酯试剂。
• STRICTLY SEGMENTED THERMOPLASTIC ELASTOMERS AS BIODEGRADABLE BIOMATERIALS
  申请人：Symo-chem B.V.

  公开号：EP3157978A1

  公开（公告）日：2017-04-26
• PROCESS FOR PREPARING A GREASE
  申请人：SHELL OIL COMPANY

  公开号：US20180223212A1

  公开（公告）日：2018-08-09

  The invention provides for a process for preparing a lubricating grease. The process can be carried out in the presence of a base oil and avoids the use of diisocyanate reagents.