1,2-bis(3-mercaptopropylthio)ethane | 27431-34-1

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醇
• 英文名称: 1,2-bis(3-mercaptopropylthio)ethane
• 英文别名: 1,2-bis(3-sulfanylpropylthio)ethane；3-[2-(3-Sulfanylpropylsulfanyl)ethylsulfanyl]propane-1-thiol
• CAS: 27431-34-1
• 化学式: C₈H₁₈S₄
• 分子量: 242.495
• InChiKey: UDXBQTHGMFDWIW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  12
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  52.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1,2-bis(3-mercaptopropylthio)ethane 、 二溴甲烷 在 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以54%的产率得到1,3,7,10-Tetrathia-cyclotridecane
  参考文献：
  名称：

  含硫缩醛单元的硫冠醚的功能化

  摘要：

  通过使长链二硫醇的铯盐与二溴二甲基甲烷反应，可以容易地制备含有硫缩醛单元的硫磺冠醚。制备三甲基甲硅烷基衍生物，然后在碱性条件下与醛缩合（彼得森反应），可得到预期的在硫缩醛碳原子上带有环外双键的大环。

  DOI：

  10.1016/s0040-4039(98)01308-2

文献信息

• Internal release agent, composition including internal release agent, and process for producing a plastic lens using same composition
  申请人：MITSUI CHEMICALS, INC.

  公开号：US10239239B2

  公开（公告）日：2019-03-26

  An internal release agent includes at least one phosphodiester represented by the following general formula (1). In the formula, R1 and R2 independently represent a hydrocarbon group having 1 to 30 carbon atoms, which is optionally substituted with at least one hydroxyl group, and R3 represents an alkylene group having 2 to 4 carbon atoms. A plurality of R3's may be the same as or different from each other. M represents a hydrogen atom, an ammonium ion, an alkali metal ion, or a monovalent/divalent alkali earth metal ion, and n is an integer of 1 to 60.

  内部释放剂至少包括一个由以下一般式（1）表示的磷酸二酯。在该式中，R1和R2分别表示具有1至30个碳原子的烃基，该烃基可以选择性地取代至少一个羟基，而R3表示具有2至4个碳原子的烷基基团。多个R3可以相同或者彼此不同。M代表氢原子、铵离子、碱金属离子或者一价/二价碱土金属离子，n为1至60的整数。
• PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER, POLYMERIZABLE COMPOSITION, RESIN, OPTICAL MATERIAL, AND LENS
  申请人：MITSUI CHEMICALS, INC.

  公开号：US20180186733A1

  公开（公告）日：2018-07-05

  A process for producing a pentaerythritol mercaptocarboxylic acid ester of the present invention includes: a step of reacting pentaerythritol with a mercaptocarboxylic acid, in which an absorbance of a 5 wt % aqueous solution of the pentaerythritol at a wavelength of 270 nm, which is measured using a quartz cell having an optical path length of 50 mm, is 0.07 or less.

  本发明的一种生产对羟基羧基巯基脂肪酸酯的工艺包括：将对羟基羧基巯基脂肪酸与对羟基羧基醇反应的步骤，其中在使用光路长度为50毫米的石英池测量的270纳米波长处，对5重量%的对羟基羧基醇水溶液的吸光度为0.07或更低。
• PLASTIC LENS
  申请人：Tokai Optical Co., Ltd.

  公开号：US20180134872A1

  公开（公告）日：2018-05-17

  To provide a plastic lens which can absorb light with a wavelength of 400 to 420 nm with sufficiently high efficiency but is reduced in the absorption of light with a wavelength of around 420 nm or longer, is less affected by harmful light, suppresses yellow coloration and therefore has excellent appearance, suppresses yellowish discoloration over time, and has excellent heat resistance, light resistance, and also optical performance, particularly an excellent Abbe's number. The plastic lens is characterized by containing an ultraviolet absorbing agent represented by the following formula (I): (in the formula, R 1 to R 8 each independently represent a monovalent group such as a hydrogen atom, R 9 represents a monovalent sulfur-containing group represented by the following formula (i): (in the formula, R 10 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R 11 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R 12 represents a monovalent hydrocarbon group with 1 to 20 carbon atoms; the total number of carbon atoms in R 10 , n number of R 11 , and R 12 is 30 or less; m represents an integer of 0 or 1; and n represents an integer of 0 to 3)), and a resin material.

  提供一种塑料镜片，可以高效吸收波长为400至420纳米的光线，但在吸收波长约为420纳米或更长的光线时减少吸收，对有害光线的影响较小，抑制黄色变色，从而具有出色的外观，随着时间的推移抑制黄色变色，并具有出色的耐热性、耐光性以及光学性能，特别是出色的阿贝数。该塑料镜片的特征在于含有以下式(I)所代表的紫外线吸收剂：（在公式中，R1至R8分别表示氢原子等单价基团，R9表示由以下式(i)所代表的含硫单价基团：（在公式中，R10表示含有1至20个碳原子的二价碳氢基团或类似基团；R11表示含有1至20个碳原子的二价碳氢基团或类似基团；R12表示含有1至20个碳原子的单价碳氢基团；R10、R11和R12的碳原子总数不超过30；m表示0或1的整数；n表示0至3的整数）），以及树脂材料。
• Plastic lenses having high-refractive index and process for the preparation thereof
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0329388A2

  公开（公告）日：1989-08-23

  The present invention relates to a process for preparing plastic lenses having a high-refractive index comprising forming a mixture containing one or more of polyisocyanate compounds; one or more active hydrogen compounds selected from the group consisting of a polyol compound having no sulfur atom, a polyol compound having at least one sulfur atom, and a polythiol compound having at least one sulfur atom in addition to the sulfur atom contained in mercapto group and at least one internal releasing agent and then casting and polymerizing the mixture.

  本发明涉及一种制备具有高折射率的塑料镜片的工艺，该工艺包括形成一种混合物，该混合物含有一种或多种多异氰酸酯化合物；一种或多种活性氢化合物，该活性氢化合物选自以下组别：不含硫原子的多元醇化合物、至少含一个硫原子的多元醇化合物、除巯基所含的硫原子外至少含一个硫原子的聚硫醇化合物；以及至少一种内部释放剂，然后浇铸和聚合该混合物。
• Resin for urethane lenses, lenses comprising the resin, and a process for preparation of the resin and the lenses
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0422836A2

  公开（公告）日：1991-04-17

  A resin for urethane lenses is here disclosed which is obtained by reacting an alicyclic isocyanate compound represented by the formula (I) and/or an alicyclic isocyanate compound represented by the formula (II) with at least one active hydrogen compound selected from polyol compounds, polythiol compounds except 1,2-bis[(2-mercaptoethyl)thio]-3-­mercaptopropane, and thiol compounds having a hydroxyl group. In addition, lenses comprising this resin and processes for the preparation of the resin and the lenses are also disclosed herein.

  本发明公开了一种用于聚氨酯镜片的树脂，它是由式 (I) 所代表的脂环族异氰酸酯化合物和/或式 (II) 所代表的脂环族异氰酸酯化合物反应而得 和/或式（II）所代表的脂环族异氰酸酯化合物 与至少一种选自多元醇化合物、除 1，2-双[（2-巯基乙基）硫代]-3-巯基丙烷之外的多元硫醇化合物和具有羟基的硫醇化合物的活性氢化合物反应。此外，本文还公开了包含这种树脂的镜片以及制备这种树脂和镜片的工艺。