2-Methylene-4-vinyl-[1,3]dioxolane | 121067-71-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氧戊环
• 英文名称: 2-Methylene-4-vinyl-[1,3]dioxolane
• 英文别名: 4-Ethenyl-2-methylidene-1,3-dioxolane
• CAS: 121067-71-8
• 化学式: C₆H₈O₂
• 分子量: 112.128
• InChiKey: BDSWIIPCXWCEPY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-Bromomethyl-4-vinyl-[1,3]dioxolane 在 甲基三辛基氯化铵 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 以43%的产率得到2-Methylene-4-vinyl-[1,3]dioxolane
  参考文献：
  名称：

  环烯酮缩醛的相转移催化新方法

  摘要：

  一个新的消除，其使用钾吨丁醇作为碱和季铵氯化物® 336作为相转移催化剂，已经开发了环状烯酮缩醛的合成。该方法具有低温，高收率，反应时间短等优点。

  DOI：

  10.1016/s0040-4039(00)74266-3

文献信息

• PREPARATION OF AN AQUEOUS DISPERSION OF COPOLYMER PARTICLES OF VINYL ACETATE AND A CYCLIC KETENE ACETAL MONOMER
  申请人：Rohm and Haas Company

  公开号：EP3722334A1

  公开（公告）日：2020-10-14

  The present invention relates to a method comprising the steps of a) contacting under emulsion polymerization conditions vinyl acetate; a cyclic ketene acetal monomer; and a monoethylenically unsaturated acid monomer or a salt thereof; to form an aqueous dispersion of copolymer particles comprising structural units of vinyl acetate, the cyclic ketene acetal, and the monoethylenically unsaturated acid monomer or a salt thereof; wherein the cyclic ketene acetal monomer is characterized by following structure: where n and the R groups are as defined herein. The method of the present invention provides a water-borne dispersion that is substantially free of volatile organic solvents and that provides a readily degradable polymer that is useful, for example, in the manufacture of biodegradable packaging products.

  本发明涉及一种方法，包括以下步骤 a) 在乳液聚合条件下，将乙酸乙烯酯、环己酮缩醛单体和单乙烯基不饱和酸单体或其盐接触，形成共聚物颗粒的水分散液，共聚物颗粒由乙酸乙烯酯、环己酮缩醛和单乙烯基不饱和酸单体或其盐的结构单元组成；其中环己酮缩醛单体的结构特征如下： 其中 n 和 R 基团如本文所定义。本发明的方法提供了一种水性分散体，该分散体基本上不含挥发性有机溶剂，并提供了一种易降解聚合物，可用于制造生物可降解包装产品等。
• AQUEOUS DISPERSION OF COPOLYMER PARTICLES OF VINYL ACETATE AND A CYCLIC KETENE ACETAL MONOMER
  申请人：Rohm and Haas Company

  公开号：EP3722341A1

  公开（公告）日：2020-10-14

  The present invention relates to a composition comprising an aqueous dispersion of copolymer particles comprising structural units of vinyl acetate, a cyclic ketene acetal monomer, and a monoethylenically unsaturated acid monomer, or a salt thereof; wherein the cyclic ketene acetal monomer is characterized by following structure: where n and the R groups are as defined herein. The composition of the present invention provides a water-borne dispersion that is substantially free of volatile organic solvents and that provides a readily degradable polymer that is useful, for example, in the manufacture of biodegradable packaging products.

  本发明涉及一种包含共聚物颗粒水分散液的组合物，共聚物颗粒包含乙酸乙烯酯、环酮缩醛单体和单乙烯基不饱和酸单体或其盐的结构单元；其中环酮缩醛单体的结构特征如下： 其中 n 和 R 基团如本文所定义。本发明的组合物提供了一种基本上不含挥发性有机溶剂的水性分散体，并提供了一种易于降解的聚合物，可用于制造可生物降解的包装产品等。
• Aqueous dispersion of copolymer particles of vinyl acetate and a cyclic ketene acetal monomer
  申请人：Rohm and Haas Company

  公开号：US11111328B2

  公开（公告）日：2021-09-07

  The present invention relates to a composition comprising an aqueous dispersion of copolymer particles comprising structural units of vinyl acetate, a cyclic ketene acetal monomer, and a monoethylenically unsaturated acid monomer, or a salt thereof; wherein the cyclic ketene acetal monomer is characterized by following structure: where n and the R groups are as defined herein. The composition of the present invention provides a water-borne dispersion that is substantially free of volatile organic solvents and that provides a readily degradable polymer that is useful, for example, in the manufacture of biodegradable packaging products.

  本发明涉及一种包含共聚物颗粒水分散液的组合物，共聚物颗粒包含乙酸乙烯酯、环酮缩醛单体和单乙烯基不饱和酸单体或其盐的结构单元；其中环酮缩醛单体的结构特征如下： 其中 n 和 R 基团如本文所定义。本发明的组合物提供了一种基本上不含挥发性有机溶剂的水性分散体，并提供了一种易于降解的聚合物，可用于制造可生物降解的包装产品等。
• Monomers and Polymers with Covalently - Attached Active Ingredients
  申请人：Kemp Lisa Kay

  公开号：US20090208553A1

  公开（公告）日：2009-08-20

  Methods to form an active agent modified monomer comprising a ring opening cyclic monomer linked to an active agent via a degradable covalent linkage. Methods to form a polymer or copolymer comprising an active agent modified monomer. Methods to form an active agent modified monomer comprising combining a ring opening cyclic monomer with a first functional group (X) and an active agent with a second functional group (Y) to form an active agent modified monomer, wherein the first (X) and second (Y) functional groups are complementary functional groups that form a degradable linkage. The active agent modified monomer can also comprise a non-degradable linkage. The method can form a ring opening cyclic monomer that includes a cyclic carbonate, cyclic epoxide, lactam, lactone, lactide anhydride, cyclic carbamate, cyclic phosphoester, or siloxane. Apparatus that includes a medical device that comprises a polymer or copolymer that comprises an active agent modified monomer.
• US5334699A
  申请人：——

  公开号：US5334699A

  公开（公告）日：1994-08-02