3,3,4-trimethyl-2-oxetanone | 18523-58-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: 3,3,4-trimethyl-2-oxetanone
• 英文别名: 3,3,4-trimethyl-oxetan-2-one；3,3,4-Trimethyl-oxetan-2-on；3,3,4-trimethyloxetan-2-one
• CAS: 18523-58-5
• 化学式: C₆H₁₀O₂
• 分子量: 114.144
• InChiKey: DZJYBEBRJNJOLP-UHFFFAOYSA-N

物化性质

• 沸点：
  63-65 °C(Press: 14 Torr)
• 密度：
  0.976±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3,3,4-trimethyl-2-oxetanone 生成 2-甲基-2-丁烯 、 methylammonium carbonate
  参考文献：
  名称：

  Salkowski, Journal fur praktische Chemie (Leipzig 1954), 1923, vol. <2>106, p. 258,263

  摘要：

  DOI：
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 水 作用下， 生成 3,3,4-trimethyl-2-oxetanone
  参考文献：
  名称：

  Salkowski, Journal fur praktische Chemie (Leipzig 1954), 1923, vol. <2>106, p. 258,263

  摘要：

  DOI：

文献信息

• Polyester from dimethylketene and acetaldehyde: Direct copolymerization and β‐lactone ring‐opening polymerization
  作者：Marc Brestaz、Nicolas Desilles、Guillaume Le、Claude Bunel

  DOI：10.1002/pola.24854

  日期：2011.10

  nuclear magnetic resonance (NMR)), with narrow polydispersity around 1.2, were obtained. These polymers were found stable up to 274 °C under nitrogen and a broad and complex endothermic peak attributed to crystallinity was observed near 139 °C by differential scanning calorimetry (DSC). The crystallinity, measured by X‐ray diffraction, was close to 0.45. © 2011 Wiley Periodicals, Inc. J Polym Sci Part

  研究了从二甲基乙烯酮和乙醛获得脂肪族聚酯（PEs）的两种方法。一方面，在-60℃下在甲苯中进行直接阴离子共聚。所得聚合物主要由PE单元组成。另一方面，分两步进行的过程涉及通过[2 + 2]环加成反应合成3,3,4-三甲基-2-氧杂环丁酮，然后进行开环聚合，并使用各种引发剂和溶剂。预期PE。分子量高达9000 g mol -1（通过核磁共振（NMR）测量）获得具有约1.2的窄多分散性。发现这些聚合物在氮气中高达274°C时稳定，通过差示扫描量热法（DSC）在139°C附近观察到一个宽而复杂的吸热峰，该峰归因于结晶度。通过X射线衍射测得的结晶度接近0.45。©2011 Wiley Periodicals，Inc. J Polym Sci A部分：Polym Chem，2011年
• CONDITIONING OF DOUBLE METAL CYANIDE CATALYSTS
  申请人：BASF SE

  公开号：EP2490805A1

  公开（公告）日：2012-08-29
• MODIFIED DOUBLE METAL CYANIDE CATALYSTS, PROCESS FOR THE PREPARATION BY TREATMENT OF CRYSTALLINE DMC CATALYST WITH BRONSTED ACID AND USE THEREOF
  申请人：BASF SE

  公开号：EP2585215A1

  公开（公告）日：2013-05-01
• Incorporation of Lactones Into Crosslinked-Modified Polyols for Demulsification
  申请人：Hilfiger Matthew

  公开号：US20130231418A1

  公开（公告）日：2013-09-05

  Crosslinked lactone/alkylene oxide polymers are useful as demulsifiers to break emulsions, e.g. water-in-oil and oil-in-water emulsions, particularly oilfield emulsions. These polymers are random or block polymers made from addition reactions of a hydroxyl- and/or amine-containing base compound with at least one lactone monomer and at least one alkylene oxide monomer. The polymers may be crosslinked with multifunctional epoxides, multifunctional carboxylic acids, and/or multifunctional anhydrides. The crosslinked polymers may be optionally capped by reaction with monofunctional monomers such as mono-epoxides and/or monofunctional carboxylic acids. The crosslinked polymers are also suitable as oilfield paraffin inhibitors and dispersants.
• NOVEL COPOLYMERS FOR USE AS OILFIELD DEMULSIFIERS
  申请人：Baker Hughes Incorporated

  公开号：US20150122742A1

  公开（公告）日：2015-05-07

  Lactone/alkylene oxide polymers are useful as demulsifiers to break emulsions, e.g. water-in-oil and oil-in-water emulsions, particularly oilfield emulsions. These polymers are random or block polymer made from addition reactions of a hydroxyl- and/or amine-containing base compound with at least one lactone monomer and at least one alkylene oxide monomer.