1-Methyl-4-propan-2-yl-6-oxabicyclo[3.1.1]heptane

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧烷类
• 英文名称: 1-Methyl-4-propan-2-yl-6-oxabicyclo[3.1.1]heptane
• 英文别名: 1-methyl-4-propan-2-yl-6-oxabicyclo[3.1.1]heptane
• 化学式: C₁₀H₁₈O
• 分子量: 154.25
• InChiKey: SCBPMTMIWOKDGL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

文献信息

• Polycarbonate polyol compositions and methods
  申请人：Saudi Aramco Technologies Company

  公开号：US10836859B2

  公开（公告）日：2020-11-17

  In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.

  在一个方面，本发明公开了用于二氧化碳和环氧化物共聚的聚合体系，该体系包括：1）催化剂，包括具有永久配位体的金属配位化合物和至少一种作为聚合引发剂的配位体；2）链转移剂，该链转移剂具有两个或两个以上可引发聚合的位点。第二方面，本公开包括使用本发明聚合体系合成聚碳酸酯多元醇的方法。第三方面，本公开包括聚碳酸酯多元醇组合物，其特征在于聚合物链具有高比例的 -OH 端基和高比例的碳酸酯链节。这些组合物的进一步特征在于，它们含有与多个单独的聚碳酸酯链连接的嵌入式多官能团的聚合物链。
• POLYCARBONATE POLYOL COMPOSITIONS AND METHODS
  申请人：Saudi Aramco Technologies Company

  公开号：US20190233586A1

  公开（公告）日：2019-08-01

  In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO 2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.
• CONTINUOUS MANUFACTURING OF POLYOL
  申请人：Saudi Aramco Technologies Company

  公开号：US20220220252A1

  公开（公告）日：2022-07-14

  A method of continuously producing a polyol includes: (i) feeding a solid catalyst into a continuous stirred tank reactor (CSTR); (ii) contacting a reaction mixture comprising one or more epoxides and carbon dioxide with the solid catalyst and a chain transfer agent comprising a plurality of sites capable of initiating copolymerization of epoxides and carbon dioxide in the CSTR; (iii) allowing polymerization reaction to proceed until a desired molecular weight polyol has formed; and (iv) terminating the polymerization reaction.