1,1-二甲氧基环丁烷 | 4415-90-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1,1-二甲氧基环丁烷
• 英文名称: 1,1-dimethoxycyclobutane
• 英文别名: Cyclobutanon-dimethylketal
• CAS: 4415-90-1
• 化学式: C₆H₁₂O₂
• mdl: MFCD24842886
• 分子量: 116.16
• InChiKey: LLZPXMCHUMPYRH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2911000000

反应信息

• 作为反应物：
  描述：

  1,1-二甲氧基环丁烷 在 三溴化硼 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 以73%的产率得到1,1-二溴环丁烷
  参考文献：
  名称：

  生成双二溴环丁烷的新途径：2-取代的环丁酮缩醛的合成及其与三溴化硼的反应。

  摘要：

  除了母体环丁酮缩醛以外，还从它们相应的环丁酮合成了九个2-取代的环丁酮缩醛，随后用三溴化硼处理。取代基分别为烷基链或苯基和苄基。在大多数情况下，这些反应中获得的主要化合物是双溴双环丁烷，其收率在50％到73％之间。过量2倍的BBr3和在-78摄氏度下3小时的反应时间可提供最佳收率。在四种情况下，根本没有观察到二溴化物的形成，并且环丁酮缩醛被水解为相应的环丁酮。这可能是由于过渡态中乙缩醛和BBr3的位阻增加所致。

  DOI：

  10.1021/jo035295o
• 作为产物：
  描述：

  甲醇 、 环丁酮 以80%的产率得到1,1-二甲氧基环丁烷
  参考文献：
  名称：

  Malatesta, Vincenzo; Jennings, Michael; Hackett, Peter, Canadian Journal of Chemistry, 1983, vol. 61, p. 366 - 367

  摘要：

  DOI：

文献信息

• NOVEL CYCLOPENTANE DERIVATIVES
  申请人：Banner David

  公开号：US20100317647A1

  公开（公告）日：2010-12-16

  The invention relates to a compound of formula (I) wherein A 1 and R 1 to R 5 are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.

  这项发明涉及一种化合物，其化学式为（I），其中A1和R1至R5的定义如描述和权利要求中所述。化合物的化学式（I）可用作药物。
• Amine terminated block copolymers and processes for their preparation
  申请人：THE FIRESTONE TIRE & RUBBER COMPANY

  公开号：EP0002196A1

  公开（公告）日：1979-06-13

  Polymers of anionically polymerized monomers such as mono-olefins, conjugated dienes, vinyl substituted aromatics, vinyl substituted pyridine, vinyl substituted quinolines, various aldehydes, various epoxides. various oxetanes, various oxygen-containing compounds, and the like are produced and end capped witb a polyisocyanate. or polyisothiocyanate having the formula R(N=C=X)n wherein R is a hydrocarbon, n is 2 or 3, and X is oxygen or sulfur. Such end capped polymers, of course, contain one reacted or connected isocyanate or isothiocyanate group and at least one free isocyanate or isothiocyanate end group, which free end group(s) reacts with an amide to give an imide end group. The imide terminated polymer is then hydrolyzed to form a stable amine terminated polymer. The reaction of the amide compound with the isocyanate(s) or isothiocyanate(s), followed by hydrolysis, results in the replacement of the free isocyanate or isothiocyanate end group(s) with an amine group(s). Thus, the amine terminated polymer contains the polymer connected to an isocyanate or isothiocyanate group (now an amide group or a thioamide group), which in turn is attached to the hydrocarbon portion, that is, the "R" portion of the polyisocyanate, which in turn is connected to the formed amine group. The amine terminated polymers may be stored extended periods of time and then reacted with various polymers, prepolymers, monomers, or various combinations thereof to form various block or graft copolymers. That is, the amine terminated polymer may be subsequently reacted with any amine reactive compound such as diepoxy monomers or an epoxy prepolymer in the presence of known epoxy catalysts to give a blocked epoxy copolymer. Similarly, the amine terminated polymer may be reacted with urea prepolymers or urea-forming monomers to yield a block urea copolymer. Reaction of the amine terminated polymer with urethane polymers, urethane prepolymers, or urethane-forming monomers will yield a urethane block copolymer. Reaction of the amine terminated polymer with urethane-urea prepolymers or urethane-urea forming monomers will yield a urethane-urea block copolymer. Similarly, various dianhydride and diamine monomers may be utilized to form an imide block copolymer.

  生产阴离子聚合单体（如单烯烃、共轭二烯、乙烯基取代的芳烃、乙烯基取代的吡啶、乙烯基取代的喹啉、各种醛、各种环氧化物、各种氧杂环丁烷、各种含氧化合物等）的聚合物，并用具有式 R(N=C=X)n 的多异氰酸酯或多异硫氰酸酯封端，其中 R 是烃，n 是 2 或 3，X 是氧或硫。当然，这种末端封端的聚合物包含一个已反应或连接的异氰酸酯或异硫氰酸酯基团和至少一个游离的异氰酸酯或异硫氰酸酯末端基团，游离的末端基团与酰胺反应生成亚胺末端基团。然后，酰亚胺端基聚合物水解形成稳定的胺端基聚合物。酰胺化合物与异氰酸酯或异硫氰酸盐反应后水解，游离的异氰酸酯或异硫氰酸盐端基会被胺基团取代。因此，胺封端聚合物含有与异氰酸酯或异硫氰酸酯基团（现为酰胺基团或硫代酰胺基团）相连的聚合物，而异氰酸酯或异硫氰酸酯基团又与多异氰酸酯的烃部分，即 "R "部分相连，而 "R "部分又与形成的胺基团相连。胺封端聚合物可长期储存，然后与各种聚合物、预聚物、单体或其各种组合反应，形成各种嵌段或接枝共聚物。也就是说，胺封端聚合物随后可以在已知环氧催化剂的存在下，与任何胺活性化合物（如二环氧单体或环氧预聚物）反应，生成嵌段环氧共聚物。同样，胺封端聚合物也可与脲预聚物或脲形成单体反应，生成嵌段脲共聚物。胺封端聚合物与氨基甲酸乙酯聚合物、氨基甲酸乙酯预聚物或氨基甲酸乙酯形成单体反应，可生成氨基甲酸乙酯嵌段共聚物。胺封端聚合物与氨基甲酸乙酯-尿素预聚物或氨基甲酸乙酯-尿素形成单体反应将产生氨基甲酸乙酯-尿素嵌段共聚物。同样，各种二酐和二胺单体也可用于形成酰亚胺嵌段共聚物。
• Elastomer blends having improved extrusion resistance and method for the preparation thereof
  申请人：BRIDGESTONE/FIRESTONE, INC.

  公开号：EP0383022A1

  公开（公告）日：1990-08-22

  Curable elastomer compositions having improved extrusion resistance comprise from about 50 to 90 parts by weight of a homogeneous blend of rubber, selected from the group consisting of natural and synthetic rubbers and blends thereof, and from about 10 to 50 parts by weight of a block copolymer containing elastomeric blocks and crystalline blocks. The elastomer compositions of the present invention have particular utility as oil well packers. A method for improving the extrusion resistance of curable elastomer compositions comprises the steps of blending together an elastomer, selected from the group consisting of natural and synthetic rubbers and blends thereof with a block copolymer containing elastomeric blocks and crystalline blocks to form a mixture and then curing the mixture.

  具有更佳抗挤压性的可固化弹性体组合物包括约 50 至 90 重量份的橡胶均质混合物（选自天然橡胶、合成橡胶及其混合物）和约 10 至 50 重量份的嵌段共聚物（含弹性嵌段和结晶嵌段）。本发明的弹性体组合物特别适用于油井封隔器。提高可固化弹性体组合物抗挤压性的方法包括以下步骤：将选自天然橡胶、合成橡胶及其混合物的弹性体与含有弹性嵌段和结晶嵌段的嵌段共聚物混合在一起，形成混合物，然后固化该混合物。
• Metal-based coordination complexes as photodynamic compounds and their use
  申请人：McFarland Sherri Ann

  公开号：US10766915B2

  公开（公告）日：2020-09-08

  Compositions of the invention include metal-based coordination complexes, which are preferably tunable photodynamic compounds. The compositions and complexes are useful as therapeutic agents and as in vivo diagnostic agents for treating or preventing diseases including those that involve hyperproliferating cells in their etiology, such as cancer. Compositions and complexes of the invention are further capable of destroying microbial cells, such as bacteria, fungi, and protozoa, and destroying viruses. The compositions and complexes are also capable of modulating cell function in other ways.

  本发明的组合物包括金属基配位复合物，它们最好是可调光动力化合物。本发明的组合物和配合物可用作治疗剂和体内诊断剂，用于治疗或预防疾病，包括在病因中涉及细胞过度增殖的疾病，如癌症。本发明的组合物和复合物还能消灭微生物细胞，如细菌、真菌和原生动物，并能消灭病毒。本发明的组合物和复合物还能以其他方式调节细胞功能。
• Mild acetalisation of mono and dicarbonyl compounds catalysed by titanium tetrachloride. Facile synthesis of β-keto enol ethers
  作者：Angelo Clerici、Nadia Pastori、Ombretta Porta

  DOI：10.1016/s0040-4020(00)01001-2

  日期：2001.1

  The use of TiCl4, as a catalyst for the acetalisation, at room temperature, of carbonyl compounds is reported. Cyclic ketones and cyclic 1,4-diketones easily afford dimethyl acetals, but cyclic 1,3-diketones give beta -keto enol ethers. Additionally, aryl ketones and acyclic ketones failed to react. beta -keto aldehydes can be monoprotected either as beta -keto enol ethers or beta -keto dimethyl acetals depending on the reaction time and catalyst amount. Some mechanistic features are accounted for. (C) 2000 Elsevier Science Ltd. All rights reserved.