4,4'-diisopropyldibenzoylmethane | 63250-26-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: 4,4'-diisopropyldibenzoylmethane
• 英文别名: 1,3-bis(4-isopropylphenyl)-1,3-propanedione；bis(4-isopropylbenzoyl)methane；4,4'-diisopropyl-dibenzoylmethane；4,4'-Diisopropyl-dibenzoylmethan；1,3-Propanedione, 1,3-bis[4-(1-methylethyl)phenyl]-；1,3-bis(4-propan-2-ylphenyl)propane-1,3-dione
• CAS: 63250-26-0
• 化学式: C₂₁H₂₄O₂
• 分子量: 308.42
• InChiKey: PLBSLFFRCJLXIF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  23
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,4'-diisopropyldibenzoylmethane 在 三氟化硼乙醚 作用下， 以 苯 为溶剂， 反应 16.0h， 以94%的产率得到bis(4-isopropylbenzoyl)methanatoboron difluoride
  参考文献：
  名称：

  White light emission from a single component system: remarkable concentration effects on the fluorescence of 1,3-diaroylmethanatoboron difluoride

  摘要：

  Concentration effects on the fluorescence (FL) emission of 1,3-dibenzoylmethanatoboron difluoride (1aBF(2)) and its diisopropyl derivative (1bBF(2)) in KBr and CH2Cl2 were investigated. Powder samples of 1aBF(2) and 1bBF(2) in KBr exhibit yellow and white FL emissions, respectively, whose intensities and wavelengths are not significantly affected by concentration. In contrast, remarkable concentration effects on FL properties of these compounds in CH2Cl2 solutions were observed. Increases in the concentrations of 1aBF(2) and 1bBF(2) from 1 x 10(-7) to ca. 2 x 10(-1) M lead to dramatic changes in the FL colors from blue (398 and 411 nm, respectively) to yellow (548 and 558 nm) via white. Careful analysis of the FL spectra, involving lifetime determinations and wave deconvolutions, reveals that emissions from 1BF(2) involve two FL domains, corresponding to an excited monomer and an excimer, and that concentration increases promote a continuous change from the former to the latter major FL domain. Thus, white FL of 1aBF(2) and 1bBF(2) is achieved by modulation of the dual FL of the excited monomer (blue) and excimer (yellow). These findings indicate that 1,3-diaroylmethanatoboron difluoride (1BF(2)) represents a new white emitting material that has advantageous features which arise from the fact that it is an easily prepared, low molecular weight, single component system not containing a heavy metal atom. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.05.122
• 作为产物：
  描述：

  4'-异丙基苯乙酮 生成 4-异丙基苯甲酸甲酯 、 4,4'-diisopropyldibenzoylmethane
  参考文献：
  名称：

  U.V. Absorbing cosmetic compositions

  摘要：

  含有二苯甲酮化合物的化妆品组合物，其化学式为##STR1## 其中R和R.sup.1是1-8个碳原子的直链或支链烷基，n是0-3的整数，n'是1-3的整数，溶解在该组合物的脂肪成分中，具有卓越的防晒效果。

  公开号：

  US04489057A1

文献信息

• PHOTOPROTECTIVE COMPOSITIONS COMPRISING PHOTOSENSITIVE 1,3,5-TRIAZINE COMPOUNDS, DIBENZOYLMETHANE COMPOUNDS AND SILICEOUS S-TRIAZINES SUBSTITUTED WITH TWO AMINOBENZOATE OR AMINOBENZAMIDE GROUPS
  申请人：L'OREAL

  公开号：US20170135933A1

  公开（公告）日：2017-05-18

  UV-photoprotective, topically applicable cosmetic/dermatological compositions contain: (a) at least one dibenzoylmethane compound, (b) at least one 1,3,5-triazine compound that is photosensitive in the presence of a dibenzoylmethane compound, and (c) at least one siliceous s-triazine compound substituted with two aminobenzoate or aminobenzamide groups, or a tautomeric form thereof, the 1,3,5-triazine compounds being improvedly photostable in such compositions.

  UV-光保护，可局部应用的化妆品/皮肤科组合物包含： (a) 至少一种二苯甲酮化合物， (b) 至少一种1,3,5-三嗪化合物，在二苯甲酮化合物存在时对光敏感，以及 (c) 至少一种含有两个氨基苯甲酸酯或氨基苯酰胺基团的硅质s-三嗪化合物，或其互变异构体，这些1,3,5-三嗪化合物在这种组合物中具有改进的光稳定性。
• SUNSCREEN COMPOSITIONS
  申请人：L'OREAL

  公开号：US20040126336A1

  公开（公告）日：2004-07-01

  The present invention relates to improved sunscreen compositions, more preferably to improved sunscreen compositions containing at least one sunscreening agent (sunscreen) and a silicone-polyamide copolymer.

  本发明涉及改进的防晒霜组合物，更具体地涉及至少含有一种防晒剂（防晒剂）和一种硅-聚酰胺共聚物的改进防晒霜组合物。
• Cosmetic compositions comprising photostabilized dibenzoylmethane compounds and 2-pyrrolidinone-4- carboxy esters
  申请人：Richard Hervé

  公开号：US20100183529A1

  公开（公告）日：2010-07-22

  Photostable cosmetic compositions contain, formulated into a cosmetically acceptable vehicle, at least one UV-screening system that includes: (a) at least one dibenzoylmethane compound, and (b) at least one 2-pyrrolidinone-4-carboxy ester compound having the following formula (I): in which: R 1 is a linear or branched C 1 -C 20 alkyl radical, and R 2 is a linear or branched C 1 -C 20 alkyl radical which optionally includes a C 5 -C 6 ring member, the phenyl radical, the benzyl radical or the phenethyl radical.

  光稳定的化妆品组合物包含至少一种紫外线屏障系统，配制成化妆上可接受的载体，其中包括： (a) 至少一种二苯甲酮化合物，以及 (b) 具有以下式(I)的至少一种2-吡咯烷酮-4-羧酯化合物： 其中： R1是线性或支链的C1-C20烷基基团，以及 R2是线性或支链的C1-C20烷基基团，可选地包括一个C5-C6环成员，苯基基团，苄基基团或苯乙基基团。
• Photoprotective cosmetic compositions comprising photostabilized dibenzoylmethane compounds and siloxane-containing arylalkyl benzoate amide compounds
  申请人：Candau Didier

  公开号：US20080317685A1

  公开（公告）日：2008-12-25

  Photostable, topically applicable cosmetic/dermatological compositions contain at least one dibenzoylmethane sunscreen compound and at least one photostabilizing siloxane-containing arylalkyl amide compound of formula (I) below:

  光稳定的、可局部应用的化妆/皮肤科学组合物至少包含一种二苯甲酮类防晒化合物和至少一种具有以下式(I)的光稳定的含硅氧烷的芳基烷基酰胺化合物：
• COMPOSITIONS, APPARATUS, SYSTEMS, AND METHODS FOR RESOLVING ELECTRONIC EXCITED STATES
  申请人：HALLSTAR INNOVATIONS CORP.

  公开号：US20140044654A1

  公开（公告）日：2014-02-13

  The present disclosure relates, according to some embodiments, to molecules, including conjugated fused polycyclic molecules, that may receive excited state energy from other molecules (e.g., light-absorbing molecules) or directly from the irradiation sources. According to some embodiments, the disclosure relates to molecules, including conjugated fused polycyclic molecules, that may resolve (e.g., quench, dissipate) excited state energy, normally by way of releasing it as heat. (e.g., as heat). Conjugated fused polycyclic molecules of various structures are disclosed including Formula III: The disclosure further relates to methods of use and/or therapy using molecules of Formulas I, II, and/or III.

  本公开涉及一些实施例，涉及分子，包括共轭融合多环分子，这些分子可以从其他分子（例如吸收光的分子）或直接从辐射源接收激发态能量。根据一些实施例，本公开涉及分子，包括共轭融合多环分子，这些分子可以通过释放为热量的方式解决（例如，熄灭，耗散）激发态能量。披露了具有各种结构的共轭融合多环分子，包括式III。本公开还涉及使用式I、II和/或III的分子进行治疗和/或疗法的方法。