4,5-dihydro-furan-2,3-dicarboxylic acid | 100704-39-0

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 4,5-dihydro-furan-2,3-dicarboxylic acid
• 英文别名: 4,5-Dihydro-furan-2,3-dicarbonsaeure；4,5-Dihydro-2,3-furandicarboxylic acid；2,3-dihydrofuran-4,5-dicarboxylic acid
• CAS: 100704-39-0
• 化学式: C₆H₆O₅
• 分子量: 158.111
• InChiKey: XVNUKANXEBCRAC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.2
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  83.8
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-methoxy-tetrahydrofuran-dicarboxylic(2,3)-dimethyl ester 在 氢氧化钾 、 PPA 、 硫酸 作用下， 40.0 ℃ 、6.67 Pa 条件下， 生成 4,5-dihydro-furan-2,3-dicarboxylic acid
  参考文献：
  名称：

  Korte; Machleidt, Chemische Berichte, 1957, vol. 90, p. 2137,2146

  摘要：

  DOI：

文献信息

• Process for production of 4-methyl-1-pentene polymer or copolymer
  申请人：MITSUI PETROCHEMICAL INDUSTRIES, LTD.

  公开号：EP0125910A1

  公开（公告）日：1984-11-21

  Polymerization of 4-methyl-1-pentene or copolymerization of 4-methyl-1-pentene with up to about 20 mole % of an olefin having 2to 20 carbon atoms in the presence of catalyst comprising (A) a solid highly active titanium catalyst component composed of magnesium, titanium, halogen and a diester of a dicarboxylic acid, (B) an organoaluminum compound, and (C) an organosilicon compound represented by the following formula wherein each of R' and R2 represents a hydrocarbon group with 1 to 5 carbon atoms, and the three R' groups may be identical or different, wherein, prior to the polymerization or copolymerization, a methylpentene is pre-polymerized or pre-copolymerized in the presence of a catalyst comprising the catalyst component (A), a part of the catalyst component (B) and a part of the catalyst component (C) to form about 1 to about 1000 grams, per millimole of titanium atom, of a methylpentene polymer or copolymer.

  在催化剂存在下，4-甲基-1-戊烯的聚合或 4-甲基-1-戊烯与具有 2 至 20 个碳原子的烯烃的高达约 20 摩尔%的共聚，催化剂包括 (A) 由镁、钛、卤素和二羧酸二酯组成的固体高活性钛催化剂组分、 (B) 有机铝化合物，和 (C) 下式所代表的有机硅化合物 其中 R'和 R2 各代表 1 至 5 个碳原子的烃基，三个 R'基团可以相同或不同、 其中，在聚合或共聚之前，甲基戊烯在由催化剂组分 (A)、部分催化剂组分 (B) 和部分催化剂组分 (C) 组成的催化剂存在下进行预聚合或预共聚，以形成每毫摩尔钛原子约 1 至约 1000 克的甲基戊烯聚合物或共聚物。
• Novel random 1-butene copolymer
  申请人：MITSUI PETROCHEMICAL INDUSTRIES, LTD.

  公开号：EP0135358A1

  公开（公告）日：1985-03-27

  A random copolymer consisting essentially of more than 60 to 99 mole% of 1-butene and less than 40 to 1 mole% of propylene, and having (A) a boiling methyl acetate-soluble content of not more than 2% by weight based on the weight of the copolymer, (B) an intrinsic viscosity (η), determined in decalin at 135°C, of 0.5 to 6 dl/g, (C) a n-decanelacetone (1:1 by volume) mixture-soluble content in % by weight based on the weight of the copolymer of less than the value calculated by 4x[η]-1.2, (D) a DSC melting point, determined by a differential scanning calorimeter, of 50 to 130°C, (E) a yield strength, measured by JIS K-7113, of 50 to 300 kg/cm2, (F) an elongation at break, measured by JIS K-7113, of 200 to 1000%, and (G) a tensile strength at break, measured by JIS K-7113, of 150 to 800 kg/cm2, can be shaped into articles such as pipes, sheets, films and hollow containers and is suitable as a packaging film.

  一种无规共聚物，主要由 60 至 99 摩尔%以上的 1-丁烯和 40 至 1 摩尔%以下的丙烯组成，并具有以下特性 (A) 沸腾乙酸甲酯可溶物含量不超过共聚物重量的 2%（以重量计）、 (B) 内在粘度 (η)，在 135°C 的癸醛中测定，为 0.5 至 6 分升/克、 (C) 正癸酮丙酮（体积比为 1:1）混合物的可溶性含量（以共聚物重量为基数，按 重量百分比计）小于按 4x[η]-1.2 计算的值、 (D) 用差示扫描量热仪测定的 DSC 熔点为 50 至 130°C、 (E) 用 JIS K-7113 测定的屈服强度为 50 至 300 千克/平方厘米、 (F) 根据 JIS K-7113 测量，断裂伸长率为 200 至 1000%，以及 (G) 根据 JIS K-7113 测量，断裂拉伸强度为 150 至 800 千克/平方厘米，可制成管材、板材、薄膜和中空容器等物品，适合用作包装薄膜。
• 1-Butene polymer and its use
  申请人：MITSUI PETROCHEMICAL INDUSTRIES, LTD.

  公开号：EP0172961A1

  公开（公告）日：1986-03-05

  A butene-1 polymer containing 0 to 1 mole% of an olefin with 2 to 20 carbon atoms other than 1-butene and having (1) an intrinsic viscosity [η] of from 1.5 to 4.0 dl/g, (2) a molecular weight distribution, expressed by the ratio of its weight average molecular weight (Mw) to its number average molecular weight (Mn), of not more than 6, and (3) an isotacticity value of at least 95%.

  一种丁烯-1 聚合物，含有 0 至 1 摩尔%的碳原子数为 2 至 20 的烯烃（1-丁烯除外），且具有以下特性 (1) 固有粘度[η]为 1.5 至 4.0 dl/g、 (2) 以重量平均分子量（Mw）与数均分子量（Mn）之比表示的分子量分布不超过 6，以及 (3) 等活度值至少为 95%。
• Propylene copolymer composition for heat-sealable plastics laminate
  申请人：MITSUI PETROCHEMICAL INDUSTRIES, LTD.

  公开号：EP0184324A2

  公开（公告）日：1986-06-11

  A crystalline random propylene copolymer composition which may be provided on at least one surface of a crystalline polypropylene substrate layer to form a heat- sealable laminate, comprises (i) a crystalline random propylene copolymer comprising 99 to 85 mole % of propylene and 1 to 15 mole% of an alpha-olefin other than propylene and (ii) a random 1-butene copolymer comprising ethylene and 1-butene, the weight ratio of the copolymer (i) to the copolymer (ii) being from 5:95 to 90:10 and said random 1-butene copolymer (ii) satisfying the following conditions: (A) it comprises from 1 to 50 mole % of the ethylene component and from 99 to 50 mole % of the 1-butene component, (B) it has an intrinsic viscosity [η], measured in decalin at 135°C, of from 0.5 to 6 dl/g, (C) it has a melting point [Tm], measured by a differential scanning colorimeter, of from 30 to 130°C, (D) it has a crystallinity, measured by X-ray diffractometry, of from 1 to 60%, (E) the amount [W, in % by weight] of that portion of it which is soluble in boiling methyl acetate is not more than 2%, and (F) the amount [W2 in % by weight] of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10°C is 5 x [η]-12 or less.

  一种结晶无规丙烯共聚物组合物，可提供在结晶聚丙烯基材层的至少一个表面上，以形成可热密封的层压板，该组合物包括(i)结晶无规丙烯共聚物，该共聚物由99至85摩尔％的丙烯和1至15摩尔％的丙烯以外的α-烯烃组成；(ii)无规1-丁烯共聚物，该共聚物由乙烯和1-丁烯组成，共聚物(i)与共聚物(ii)的重量比为5：95至90:10，所述无规 1-丁烯共聚物(ii)满足以下条件： (A) 由 1 至 50 摩尔%的乙烯组分和 99 至 50 摩尔%的 1-丁烯组分组成、 (B) 在 135°C 的癸醛中测量，其固有粘度[η]为 0.5 至 6 dl/g、 (C) 用差示扫描比色计测量，其熔点[Tm]为 30 至 130°C、 (D) 用 X 射线衍射仪测量，结晶度为 1%至 60%、 (E) 可溶于沸腾的醋酸甲酯的部分[W，重量百分比]不超过 2%，及 (F) 可溶于 10°C 丙酮和正癸烷体积比为 1:1 的混合物中的部分[W2，重量百分比]为 5 x [η]-12或更少。
• Random 1-butene copolymer
  申请人：MITSUI PETROCHEMICAL INDUSTRIES, LTD.

  公开号：EP0186287A2

  公开（公告）日：1986-07-02

  A random 1-butene copolymer, for use in the production of molded articles has the following characteristics (A) to (F): (A) it comprises from 50 to 99 mole% of the 1-butene component and from 50 to 1 mole% of an alpha-olefin component, (B) it has an intrinsic viscosity [η], measured in decalin at 135°C, of from 0.5 to 6 dl/g, (C) it has a melting point [Tm], measured by a differential scanning calorimeter, of from 30 to 120°C, (D) it has a crystallinity, measure by X-ray diffractometry, of from 5 to 60%, (E) the amount [W, in % by weight] of that portion of it which is soluble in boiling methyl acetate is not more than 2%, and (F) the amount [W2 in % by weight] of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10°C is 5 x [η] 1.2 or less.

  一种用于生产模塑制品的无规 1-丁烯共聚物具有以下特性（A）至（F）： (A) 由 50 至 99 摩尔%的 1-丁烯组分和 50 至 1 摩尔%的 α-烯烃组分组成、 (B) 以癸醛为介质，在 135°C 时测得的固有粘度[η]为 0.5 至 6 dl/g、 (C) 用差示扫描量热计测量，其熔点[Tm]为 30 至 120°C、 (D) 用 X 射线衍射仪测量，结晶度为 5%至 60%、 (E) 可溶于沸腾的醋酸甲酯的量[W，重量百分比]不超过 2%，及 (F) 在 10°C 下，可溶于丙酮和正癸烷按体积比为 1:1 的混合物的部分的量[W2，重量百分比]为 5 x [η] 1.2 或更少。