bis(2-chloro-2,2-difluoro-1,1-dideuterioethyl)thionocarbamate | 791131-11-8

• 分子结构分类: 有机化合物 - 有机卤素化合物
• 英文名称: bis(2-chloro-2,2-difluoro-1,1-dideuterioethyl)thionocarbamate
• CAS: 791131-11-8
• 化学式: C₅H₄Cl₂F₄O₂S
• 分子量: 279.019
• InChiKey: FBTKBMVIRKMLCT-LNLMKGTHSA-N

反应信息

• 作为反应物：
  描述：

  bis(2-chloro-2,2-difluoro-1,1-dideuterioethyl)thionocarbamate 在 氢氧化钾 、 溴 、 三氟化锑 、 氯 作用下， 以 二氯甲烷 、 二甲基亚砜 、 乙腈 为溶剂， 反应 7.5h， 生成 1-Deuterio-1-[(1-deuterio-2,2-difluoroethenoxy)-difluoromethoxy]-2,2-difluoroethene
  参考文献：
  名称：

  Synthesis and Properties of Partially Fluorinated Amorphous Ring Containing Polymers:  Poly[bis(2,2-difluorovinyl)formal], Poly[bis(2,2-difluorovinyl)difluoroformal], and Poly[bis(1-deuterio-2,2-difluorovinyl)difluoroformal]

  摘要：

  Three novel partially fluorinated monomers, bis(2,2-difluorovinyl)formal (I), bis(2,2-difluorovinyl)difluoroformal (II), and bis(1-deuterio-2,2-difluorovinyl)difluoroformal (III), were prepared. These monomers were polymerized in bulk via free radical mechanism. Monomer I produced a crosslinked polymer, but monomers II and III yielded amorphous polymers (II-P and III-P) having five- and six-membered rings along the backbone. Polymers II-P and III-P were soluble not only in fluorinated solvents but also in nonfluorinated solvents such as THF, 1, 4-dioxane, DMF, and DMSO. They have good thermal stability (onset of decomposition > 400 degreesC), high glass transition temperatures (105 degreesC), and low dielectric constant (1.98-1.82 at frequency ranging from 0.1 to 3 x 10(6) Hz). Furthermore, these polymers are completely amorphous and possess outstanding optical clarity extending from visible to near-IR regions. The refractive indices of both polymers were measured at various wavelengths to evaluate material dispersion. The material dispersions of II-P and III-P were similar and had low values, which are comparable to perfluorinated polymers and much lower than perdeuterioPMMA. The unique optical properties of these polymers make them attractive for use as optical materials.

  DOI：

  10.1021/ma049462d
• 作为产物：
  描述：

  硫光气 、 2-chloro-2,2-difluoro-1,1-dideuterioethanol 在 sodium hydroxide 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 3.0h， 以38%的产率得到bis(2-chloro-2,2-difluoro-1,1-dideuterioethyl)thionocarbamate
  参考文献：
  名称：

  Synthesis and Properties of Partially Fluorinated Amorphous Ring Containing Polymers:  Poly[bis(2,2-difluorovinyl)formal], Poly[bis(2,2-difluorovinyl)difluoroformal], and Poly[bis(1-deuterio-2,2-difluorovinyl)difluoroformal]

  摘要：

  Three novel partially fluorinated monomers, bis(2,2-difluorovinyl)formal (I), bis(2,2-difluorovinyl)difluoroformal (II), and bis(1-deuterio-2,2-difluorovinyl)difluoroformal (III), were prepared. These monomers were polymerized in bulk via free radical mechanism. Monomer I produced a crosslinked polymer, but monomers II and III yielded amorphous polymers (II-P and III-P) having five- and six-membered rings along the backbone. Polymers II-P and III-P were soluble not only in fluorinated solvents but also in nonfluorinated solvents such as THF, 1, 4-dioxane, DMF, and DMSO. They have good thermal stability (onset of decomposition > 400 degreesC), high glass transition temperatures (105 degreesC), and low dielectric constant (1.98-1.82 at frequency ranging from 0.1 to 3 x 10(6) Hz). Furthermore, these polymers are completely amorphous and possess outstanding optical clarity extending from visible to near-IR regions. The refractive indices of both polymers were measured at various wavelengths to evaluate material dispersion. The material dispersions of II-P and III-P were similar and had low values, which are comparable to perfluorinated polymers and much lower than perdeuterioPMMA. The unique optical properties of these polymers make them attractive for use as optical materials.

  DOI：

  10.1021/ma049462d