4,4-(苯基亚甲基)二苯酚 | 4081-02-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 中文名称: 4,4-(苯基亚甲基)二苯酚
• 英文名称: 4,4'-benzylidene-di-phenol
• 英文别名: 1-phenyl-1,1-bis(4-hydroxyphenyl)methane；Bis(4-hydroxyphenyl)phenylmethane；4-[(4-hydroxyphenyl)-phenylmethyl]phenol
• CAS: 4081-02-1
• 化学式: C₁₉H₁₆O₂
• 分子量: 276.335
• InChiKey: RSSGMIIGVQRGDS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

安全信息

• 海关编码：
  2907299090

反应信息

• 作为反应物：
  描述：

  4,4-(苯基亚甲基)二苯酚 生成 4,4'-苄亚基二苯甲醚
  参考文献：
  名称：

  Feuerstein; Lipp, Chemische Berichte, 1902, vol. 35, p. 3255

  摘要：

  DOI：
• 作为产物：
  描述：

  4-(3,5-dibromo-4-hydroxy-α-phenylbenzylidene)-2,6-dibromo-2,5-cyclohexadien-1-one sodium salt 在 palladium on activated charcoal 氢气 、 sodium acetate 作用下， 以 甲醇 为溶剂， 反应 7.0h， 以69.1%的产率得到4,4-(苯基亚甲基)二苯酚
  参考文献：
  名称：

  The Reaction 2,4,6-Trihalophenols with Tropylium Perchlorate. A New Route for Triphenylmethane-Type Pigments.

  摘要：

  在三乙胺存在下，2,4,6-三溴苯酚和三碘苯酚与高氯酸托品鎓反应，分别生成 4-（3,5-二卤-4-羟基-α-苯基亚苄基）-2,6-二卤-2,5-环己二烯-1-酮。

  DOI：

  10.1246/bcsj.66.337

文献信息

• Catalytic selective bis-arylation of imines with anisole, phenol, thioanisole and analogues
  作者：Cong-Rong Liu、Man-Bo Li、Cui-Feng Yang、Shi-Kai Tian

  DOI：10.1039/b800066b

  日期：——

  The first highly efficient double Friedel–Crafts reaction of N-tosyl imines with anisole, phenol, thioanisole and analogues has been developed to produce the corresponding symmetric diarylmethanes and triarylmethanes with high regioselectivity in the presence of a catalytic amount of Bi2(SO4)3–TMSCl at room temperature.

  首次开发了一种高效的N-甲苯磺酰亚胺与茴香醚、苯酚、硫代茴香醚及其类似物的双弗里德尔-克拉夫茨反应，在室温下，使用催化量的Bi2(SO4)3-TMSCl，以高区域选择性制备相应的对称二芳基甲烷和三芳基甲烷。
• The Effect of Leg Length Discrepancy on Foot Loading Patterns and Contact Times
  作者：G.C. O'Toole、N.K. Makwana、J. Lunn、J. Harty、M.M. Stephens

  DOI：10.1177/107110070302400310

  日期：2003.3

  The effect of a simulated leg length discrepancy on foot loading patterns and gait cycle times in normal individuals was investigated. Thirty feet of 15 normal volunteers were evaluated. Leg length discrepancy was simulated using flexible polyurethane soles. As leg length discrepancy increased, the total loading increased from 35.31 to 37.99 kg/cm ² /sec, forefoot loading increased from 15.58 to 19 kg/cm ² /sec, hindfoot loading remained the same. All subjects, except females with middle loading patterns, demonstrated increased hallux loading. The contact phase of gait decreased from 22% to 13%, the midstance phase remained the same, the propulsion phase increased from 44% to 50%. All findings were statistically significant. Leg length discrepancy has significant effects on the foot. Different adaptive loading patterns amongst subsets of individuals are seen.

  研究了模拟腿部长度差异对正常个体足部负荷模式和步态周期时间的影响。评估了15名正常志愿者的30只脚。使用柔性聚氨酯鞋底模拟腿部长度差异。随着腿部长度差异的增加，总负荷从35.31增加到37.99千克/厘米²/秒，前脚负荷从15.58增加到19千克/厘米²/秒，后脚负荷保持不变。除具有中等负荷模式的女性外，所有受试者均表现出增加的大脚趾负荷。步态的接触阶段从22%减少到13%，中期站姿阶段保持不变，推进阶段从44%增加到50%。所有发现都具有统计学意义。腿部长度差异对足部有显著影响。不同个体亚群中出现了不同的适应性负荷模式。

• [EN] SULFONIUM SULFATES, THEIR PREPARATION AND USE<br/>[FR] SULFATES DE SULFONIUM, LEUR PRÉPARATION ET UTILISATION
  申请人：BASF SE

  公开号：WO2012113829A1

  公开（公告）日：2012-08-30

  The present invention relates to a heat-curable composition comprising (a) at least one compound which is capable of undergoing cationic polymerization; and (b) at least one sulfonium sulfate selected from compounds of the formulae Ia and Ib where Yn- is a monovalent or divalent anion selected from (1) where n, M, R1 to R10 are as defined in claim 1 and in the description. The present invention also relates to novel sulfonium sulfates of the formulae Ia and Ib, to a process for curing cationically polymerizable material and to the cured material obtained by said process.

  本发明涉及一种热固化组合物，包括（a）至少一种能够进行阳离子聚合的化合物；和（b）选择自式Ia和Ib的至少一种砜酸盐，其中Yn-是从（1）中选择的一价或二价阴离子，其中n、M、R1至R10如权利要求1和描述中所定义。本发明还涉及式Ia和Ib的新型砜酸盐，以及用于固化阳离子聚合材料的工艺和通过该工艺获得的固化材料。
• Metal cation-exchanged montmorillonite (Mn+-mont)-catalysed aromatic alkylation with aldehydes and ketones
  作者：Jun-ichi Tateiwa、Ei Hayama、Takahiro Nishimura、Sakae Uemura

  DOI：10.1039/a701744h

  日期：——

  The alkylation of aromatic compounds with aldehydes and ketones in the presence of a variety of metal cation-exchanged montmorillonites (Mn+-mont; Mn+ = Zr4+, Al3+, Fe3+, Zn2+, H+, Na+) has been investigated. Al3+- and Zr4+-Monts are revealed to be effective as catalysts, while no reaction takes place with Na+-mont. Al3+-Mont-catalysed alkylation of phenol with several aldehydes produces mainly or almost solely the corresponding gem-bis(hydroxyphenyl)alkanes (bisphenols) in good yields, while that with several ketones affords selectively the corresponding alkylphenols in moderate to good yields. The alkylation always occurs at the carbonyl carbon without any skeletal rearrangement and the kind of products depends much on the steric hindrance of an electrophilic intermediary carbocation. The alkylation of anisole, veratrole and p-cresol proceeds well, while that of toluene, benzene, chlorobenzene and nitrobenzene scarcely occurs.

  在各种金属阳离子交换的蒙脱石（Mn+-mont；Mn+ = Zr4+、Al3+、Fe3+、Zn2+、H+、Na+）存在下，研究了芳香化合物与醛和酮的烷基化反应。发现Al3+和Zr4+蒙脱石是有效的催化剂，而Na+蒙脱石则不发生反应。由Al3+蒙脱石催化的苯酚与几种醛的烷基化反应主要或几乎只生成了相应的双（羟苯基）烷烃（双酚），产率良好；而与几种酮的烷基化反应则选择性地生成了相应的烷基苯酚，产率适中至良好。烷基化总是发生在羰基碳上，没有骨架重排，产物的类型很大程度上取决于亲电中间体的碳正离子的空间位阻。茴香醚、邻苯二甲醚和对甲酚的烷基化反应良好进行，而甲苯、苯、氯苯和硝基苯的烷基化反应几乎不发生。
• Metal- and solvent-free synthesis of aniline- and phenol-based triarylmethanes<i>via</i>Brönsted acidic ionic liquid catalyzed Friedel-Crafts reaction
  作者：Nipaphorn Ponpao、Warapong Senapak、Rungnapha Saeeng、Jaray Jaratjaroonphong、Uthaiwan Sirion

  DOI：10.1039/d1ra03724b

  日期：——

  A beneficial, scalable and efficient methodology for the synthesis of aniline-based triarylmethanes has been established through the double Friedel-Crafts reaction of commercial aldehydes and primary, secondary or tertiary anilines using Brönsted acidic ionic liquid as a powerful catalyst, namely [bsmim][NTf2]. This protocol was successfully performed under metal- and solvent-free conditions with a

  通过商业醛与伯、仲或叔苯胺的双重弗里德尔-克来福特反应，使用布朗斯台德酸性离子液体作为强大的催化剂，即[bsmim][，建立了一种有益的、可扩展的和高效的合成苯胺基三芳基甲烷的方法。 NTf 2 ]。该方案在无金属和无溶剂的条件下使用多种底物成功进行，得到了相应的基于苯胺的三芳基甲烷产品，产率良好至优异（高达 99%）。此外，还使用这种有用的方法研究了苯酚和富电子芳烃等替代芳香族亲核试剂，以高至优异的产率获得了多种三芳基甲烷衍生物。