Diethyl-2,2-dimethylsuccinat | 39155-16-3

• 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: Diethyl-2,2-dimethylsuccinat
• 英文别名: Diethyl 2,2-dimethylbutanedioate
• CAS: 39155-16-3
• 化学式: C₁₀H₁₈O₄
• mdl: MFCD28505668
• 分子量: 202.251
• InChiKey: DODIKAULZAKDIN-UHFFFAOYSA-N

物化性质

• 沸点：
  218 °C
• 密度：
  0.993 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Diethyl-2,2-dimethylsuccinat 在 乙醇 、 sodium 作用下， 生成 2,2-二甲基丁烷-1,4-二醇
  参考文献：
  名称：

  Bouveault; Blanc, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1903, vol. 137, p. 328

  摘要：

  DOI：
• 作为产物：
  描述：

  丁二酸,3-羟基-2,2-二甲基-,二乙基酯 在 磷化氢 、 氢碘酸 作用下， 生成 Diethyl-2,2-dimethylsuccinat
  参考文献：
  名称：

  The oxygen concentrator is a suitable alternative to oxygen cylinders in Nepal

  摘要：

  Purpose: To review the efficacy and reliability of oxygen concentrators used over the last six years in Nepal. The apparatus used was a DeVilbiss(R) oxygen concentrator that provided O-2 for anesthesia supplemented with compressed air to drive a Penlon Manley Multivent Ventilator(R). It remains difficult to supply oxygen in cylinders to peripheral hospitals in Nepal due to lack of proper roads.Methods: We conducted a retrospective analysis of a sample of 378 cases anesthetized at the Bir Hospital and at a private hospital in Kathmandu from April through October 1999. The Bain circuit or its modification was used in adults, and Bain or Ayre's T piece in children. High flows from the oxygen concentrator used with the Bain and Ayre's T circuits were reduced to 2 L(.)min(-1), delivered through the halothane vaporizer, supplemented by room air in the modified Bain circuit. Positive pressure ventilation was provided with an Ambubag, Oxford Inflating Bellows or Penlon Manley Multivent Ventilator. Blood pressure, electrocardiogram, FiO(2) and SpO(2) were monitored in all cases.Results: Surgery included urologic, general surgery, obstetrics and gynecological procedures, neurosurgery and closed mitral valvotomy. Age ranged from six months to 78 yr. The anesthetic time lasted from 45 min to 12 hr. The FiO(2) ranged from 0.5 to 0.6 in the Bain and Ayre's T circuits, and from 0.34 to 0.40 in the modified Bain circuit with a flow of oxygen of 2 L(.)min(-1) from the concentratorConclusion: With regular maintenance and servicing done locally, the oxygen concentrator can be used safely in adults and children. Use of the oxygen concentrator is a suitable alternative to oxygen cylinders in the developing world.

  DOI：

  10.1007/bf03020412

文献信息

• CATALYTIC HYDROGENATION PROCESS FOR THE SYNTHESIS OF TERMINAL DIOLS FROM TERMINAL DIALKYL ALIPHATIC ESTERS
  申请人：Council of Scientific & Industrial Research

  公开号：US20170349514A1

  公开（公告）日：2017-12-07

  A phosphorus ligand-free, mild, efficient and complete catalytic hydrogenation process is for the sustainable production of terminal diols from renewable terminal dialkyl esters with improved yield. Soluble, phosphorus ligand free Ru (II)-pincer type complexes can be used as catalysts in the hydrogenation process.

  一种无磷配体、温和、高效且完全的催化加氢过程，可从可再生的末端二烷基酯中可持续生产末端二醇，并提高产量。可溶性、无磷配体的Ru(II)-钳型配合物可用作加氢过程中的催化剂。
• The chemistry of terpenes. Part XIV. Syntheses of (±)- and (+)-fenchone, and (+)-cis-2,2,5-trimethyl-3-vinylcyclopentanone, a photoisomer of (–)-trans-caran-4-one
  作者：P. H. Boyle、W. Cocker、D. H. Grayson、P. V. R. Shannon

  DOI：10.1039/j39710002136

  日期：——

  Treatment of (+)-α-2,3-epoxypinane or (–)-trans-pinocarveol with hydrogen bromide gives a mixture in which (–)-2-endo-bromo-6-exo-hydroxy-1,3,3-trimethylbicyclo[2,2,1]heptane is the major product. With silver acetate this affords (–)-2,2,4-trimethylcyclopent-3-enylacetaldehyde, which gives (–)-4-(2-hydroxyethyl)-1,3,3-trimethylcyclopentene on reduction. The alcohol reacts with peracetic acid giving

  用溴化氢处理（+）-α-2,3-环氧pin烷或（-）-反式-香樟醇时得到的混合物中，（-）-2-内-溴-6-外-羟基-1,3,3 -三甲基双环[2,2,1]庚烷是主要产物。用乙酸银可以得到（-）-2,2,2-三甲基环戊-3-烯基乙醛，还原后可以得到（-）-4-（2-羟乙基）-1,3,3-三甲基环戊烯。醇与过氧乙酸反应，得到几乎定量的（-）-β-1,2-环氧-4β-（2-羟乙基）-1,3,3-三甲基环戊烷，三氟化硼的产率为（+）-顺式-3-（2-羟乙基）-2,2,5-三甲基环戊酮。用碱处理相应的氯酮得到（+）-甲酮。
• Influence of structure and chemistry on piezoelectric properties of lead zirconate titanate in a microelectromechanical systems power generation application
  作者：L. M. R. Eakins、B. W. Olson、C. D. Richards、R. F. Richards、D. F. Bahr

  DOI：10.1557/jmr.2003.0292

  日期：2003.9

  Lead zirconate titanate (PZT) films between 1 and 3 μm thick were grown using solution deposition techniques to study the effects of crystal structure and orientation on the direct piezoelectric output of these films on platinized Si membranes. By varying the chemistry of the film from Zr-rich to Ti-rich, the 100}/(111) relative intensity increased for films grown on randomly oriented Pt films. The 40:60 PZT had a tetragonal crystal structure and produced greater electrical output at a given strain than the rhombohedral film (Zr:Ti concentrations less than 50:50), while having a similar e₃₁ constant, between 4.8 and 6.3 C/m². Orientation and voltage output at a given strain were not strongly influenced by thickness in the ranges investigated. Defects in internal PZT/PZT crystallization interfaces were identified and include porosity on the order of tens of nm, with a corresponding depletion in Pb and accumulation of O at these interfaces. The 100} texture of rhombohedral films deposited upon (111) textured Pt films is significantly greater than the 100} texture of tetragonal films, which show both a 100} and 111} orientation on the same Pt film.

  利用溶液沉积技术生长了厚度为 1 至 3 μm 的锆钛酸铅（PZT）薄膜，以研究晶体结构和取向对这些薄膜在铂化硅膜上的直接压电输出的影响。通过改变薄膜的化学性质（从富含 Zr 到富含 Ti），在随机取向的铂薄膜上生长的薄膜的 100}/(111) 相对强度增加了。40:60 PZT 具有四方晶体结构，在给定应变下比斜方体薄膜（Zr:Ti 浓度低于 50:50）产生更大的电输出，同时具有相似的 e31 常量，介于 4.8 和 6.3 C/m2 之间。在所研究的范围内，厚度对给定应变下的方向和电压输出影响不大。在 PZT/PZT 内部结晶界面上发现了缺陷，包括数十纳米量级的孔隙率，以及在这些界面上相应的铅耗竭和 O 积累。沉积在(111)纹理铂薄膜上的斜方体薄膜的100}纹理明显大于四方薄膜的100}纹理，后者在同一铂薄膜上同时显示出100}和111}取向。
• Naturally occurring compounds related to phenalenone. Part V. Synthetic approaches to structures based on 8,9-dihydro-8,8,9-trimethylphenaleno[1,2-b]furan-7-one
  作者：David A. Frost、George A. Morrison

  DOI：10.1039/p19730002159

  日期：——

  successful method involved acid-catalysed cyclisation of the keto-lactone (22)[2-(2,7-dimethoxy-1-naphthoyl)-3,3-dimethylpentan-4-olide]; another utilised the Claisen rearrangement of the dimethylallyl ether (24b)[9-hydroxy-4-methoxy-3-(3-methylbut-2-enyloxy)phenalenone].

  合成8,9-dihydro-8,8,9-trimethylphenaleno [1,2- b ]呋喃-7-one（21 b）及其1,6-二甲氧基-（21a）和1-的许多可能的合成途径已经研究了羟基-6-甲氧基-（21c）类似物。一种成功的方法涉及酸催化酮内酯（22）[2-（2,7-二甲氧基-1-萘甲酰基）-3,3-二甲基戊烷-4-内酯]的环化反应；另一个利用了二甲基烯丙基醚（24b）[9-羟基-4-甲氧基-3-（3-甲基丁-2-烯氧基）苯丙烯酮]的克莱森重排。
• Propylene polymers
  申请人：Morini Giampiero

  公开号：US20050032633A1

  公开（公告）日：2005-02-10

  The present invention relates to a solid catalyst component for the polymerization of olefins CH 2 ═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from substituted succinates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

  本发明涉及一种用于聚合烯烃CH2═CHR（其中R为氢或具有1-12个碳原子的碳氢基团）的固体催化剂组分，包括镁、钛、卤素和从特定公式的取代琥珀酸酯中选择的电子给体。当在聚合烯烃，特别是丙烯的聚合中使用该催化剂组分时，能够以高收率和以高二甲苯不溶性表示的高同构指数给出聚合物。