N-(p-toluenylaminocarbonyl)-methionine | 55021-30-2

• 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: N-(p-toluenylaminocarbonyl)-methionine
• 英文别名: 2-[(4-Methylphenyl)carbamoylamino]-4-methylsulfanylbutanoic acid
• CAS: 55021-30-2
• 化学式: C₁₃H₁₈N₂O₃S
• mdl: MFCD12464529
• 分子量: 282.364
• InChiKey: ODNNHJCIUBWQHO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.384
• 拓扑面积：
  104
• 氢给体数：
  3
• 氢受体数：
  4

文献信息

• REVERSIBLE THERMOCHROMIC COMPOSITION, REVERSIBLE THERMOCHROMIC MICROCAPSULE PIGMENT COMPRISING SAME, AND WRITING INSTRUMENT USING SAME
  申请人：THE PILOT INK CO., LTD.

  公开号：EP3950068A1

  公开（公告）日：2022-02-09

  [Problems] Provided are a highly marketable reversibly thermochromic composition that provides a black color during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in contrast between a colored state and a decolored state and a microcapsule pigment encapsulating the same. [Solution] Disclosed are a reversibly thermochromic composition including: (a) a fluoran derivative having a specific structure as an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the same.

  [问题]提供了一种极具市场前景的可逆热致变色组合物，该组合物通过使用具有特定结构的芴衍生物作为电子捐赠显色有机化合物，在显色过程中提供黑色，在脱色过程中变成无色，并且在有色状态和脱色状态之间具有极佳的对比度，同时还提供了封装该组合物的微胶囊颜料。 [解决方案]本发明公开了一种可逆热变色组合物，包括：（a）具有特定结构的氟烷衍生物，作为电子捐赠显色有机化合物；（b）电子接受化合物；以及（c）反应介质，该介质可在特定温度范围内可逆地诱导组分（a）和组分（b）之间的电子转移反应，以及封装该组合物的可逆热变色微胶囊颜料。
• REVERSIBLY THERMOCHROMIC AQUEOUS INK COMPOSITION FOR WRITING UTENSILS, AND REFILL AND WATER-BASED BALLPOINT PEN EACH INTERNALLY CONTAINING SAME
  申请人：Kabushiki Kaisha Pilot Corporation (also trading as Pilot Corporation)

  公开号：EP3954745A1

  公开（公告）日：2022-02-16

  Provided are a reversibly thermochromic aqueous ink composition having excellent writability and few problems such as aggregation of a colorant, an increase in viscosity of the composition, or a decrease in handwriting density, and a refill or an aqueous ballpoint pen using the reversibly thermochromic aqueous ink composition. A reversibly thermochromic composition is a reversibly thermochromic aqueous ink composition containing a reversibly thermochromic microcapsule pigment encapsulated in a microcapsule formed from an organic resin, an N-vinyl-2-pyrrolidone polymer, glycerin, and water, in which when contents (% by mass) of the reversibly thermochromic microcapsule pigment, the N-vinyl-2-pyrrolidone polymer, and the glycerin with respect to a total mass of the ink composition are PMC, PPVP, and PG, respectively, 0.3 ≤ PMC/(PPVP + PG) ≤ 4, and 0.2 ≤ PPVP/PG ^ 5, and a refill or an aqueous ballpoint pen incorporating the reversibly thermochromic aqueous ink composition.

  本发明提供了一种可逆热致变色水性墨水组合物，该组合物具有极佳的书写性，且很少出现着色剂聚集、组合物粘度增加或书写密度降低等问题，还提供了使用该可逆热致变色水性墨水组合物的笔芯或水性圆珠笔。 可逆热致变色组合物是一种可逆热致变色水性墨水组合物，它包含封装在由有机树脂、N-乙烯基-2-吡咯烷酮聚合物形成的微胶囊中的可逆热致变色微胶囊颜料、甘油和水，其中当可逆热致变色微胶囊颜料、N-乙烯基-2-吡咯烷酮聚合物和甘油相对于油墨组合物总质量的含量（质量百分比）分别为 PMC、PPVP 和 PG 时，0.3 ≤ PMC/(PPVP + PG) ≤ 4，和 0.2 ≤ PPVP/PG ^ 5，以及包含可逆热致变色水性墨水组合物的笔芯或水性圆珠笔。
• DEVELOPER AND THERMOSENSITIVE RECORDING MATERIAL
  申请人：Mitsubishi Chemical Corporation

  公开号：EP4067340A1

  公开（公告）日：2022-10-05

  An object of the present invention is to provide: a developer that can provide a thermosensitive recording material excellent in color development sensitivity and storage stability; and a thermosensitive recording material obtained using the developer. The object is achieved by a developer including a compound represented by the following Formula (1). (In Formula (1), a, A, and L are as follows: a is an integer selected from 1 to 5, A is each independently a fluoro group or a perfluoroalkyl group, and L is any of functional groups represented by the following Formula (2) : wherein in Formula (2), R is a C1-C4 alkyl group, and * represents a binding site to a sulfur atom in Formula (1)).

  本发明的目的是提供：一种能提供显色灵敏度和储存稳定性均优异的热敏记录材料的显影剂；以及一种使用该显影剂获得的热敏记录材料。本发明的目的是通过一种显影剂来实现的，该显影剂包括由下式（1）表示的化合物。 (在式 (1) 中，a、A 和 L 如下：a 是选自 1 至 5 的整数，A 独立地分别是氟基或全氟烷基，L 是下式 (2) 所代表的任何官能团： 其中，在式 (2) 中，R 是 C1-C4 烷基，* 代表与式 (1) 中硫原子的结合位点）。
• Heat-sensitive recording material
  申请人：SANKO CO., LTD.

  公开号：US10086634B2

  公开（公告）日：2018-10-02

  A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m . . . (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR″ group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.)

  一种热敏记录材料包括含有碱性染料和显影剂的热敏记录层，并设置在支撑体上，其中显影剂是至少一种由以下通式表示的N-取代氨基酸衍生物：(R-X)m-Y-(Z)m......。(1) （在式（1）中，R 代表烷基或芳基，可带有取代基。X 是与 Y 的 N 末端键合的基团，代表-OCO-、-SO2NHCO-、-NHCO-、-NHCS- 或-SO2-。Y 代表氨基酸残基或肽残基。Z 代表与 Y 的 C 端结合的基团，代表 OH 基团或 OR″ 基团。当 Y 是胱氨酸残基以外的氨基酸残基或 Y 是不含胱氨酸残基的肽残基时，m=1；当 Y 是含 n 个胱氨酸残基的肽残基时，m=n+1，n 为 1 或 2。）
• HEAT-SENSITIVE RECORDING MATERIAL
  申请人：Sanko Co., Ltd.

  公开号：EP3342599B1

  公开（公告）日：2021-06-16