2-Hydroxy-1-(4-methoxyphenyl)-2,2-diphenylethanone | 4338-69-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 2-Hydroxy-1-(4-methoxyphenyl)-2,2-diphenylethanone
• CAS: 4338-69-6
• 化学式: C₂₁H₁₈O₃
• 分子量: 318.372
• InChiKey: UUWGCHJHFDWJPX-UHFFFAOYSA-N

物化性质

• 沸点：
  515.7±45.0 °C(Predicted)
• 密度：
  1.191±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-Hydroxy-1-(4-methoxyphenyl)-2,2-diphenylethanone 在 三乙基硅烷 、 高氯酸 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 0.88h， 以74%的产率得到1-(4-methoxyphenyl)-2,2-diphenylethanone
  参考文献：
  名称：

  α-羟基羰基化合物的无金属，直接和选择性脱氧：获得α，α-二芳基羰基化合物

  摘要：

  使用催化量的HClO 4水溶液（70％）和三乙基硅烷作为氢化物源，对多种α-羟基-α，α-二芳基羰基化合物进行选择性脱氧，得到一类重要的α，α-二芳基羰基化合物。

  DOI：

  10.1002/ejoc.202000142
• 作为产物：
  描述：

  在 四丁基氟化铵 、 水 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 0.17h， 以116 mg的产率得到2-Hydroxy-1-(4-methoxyphenyl)-2,2-diphenylethanone
  参考文献：
  名称：

  Lanthanum Tricyanide-Catalyzed Acyl Silane−Ketone Benzoin Additions and Kinetic Resolution of Resultant α-Silyloxyketones

  摘要：

  We report the full account of our efforts on the lanthanum tricyanide-catalyzed acyl silane ketone benzoin reaction. The reaction exhibits a wide scope in both acyl silane (aryl, alkyl) and ketone (arylalkyl, alkyl-alkyl, aryl-aryl, alkenyl-alkyl, alkynyl-alkyl) coupling partners. The diastereoselectivity of the reaction has been examined in both cyclic and acyclic systems. Cyclohexanones give products arising from equatorial attack by the acyl silane. The diastereoselectivity of acyl silane addition to acyclic alpha-hydroxy ketones can be controlled by varying the protecting group to obtain either Felkin-Ahn or chelation control. The resultant alpha-silyloxyketone products can be resolved with selectivity factors from 10 to 15 by subjecting racemic ketone benzoin products to CBS reduction.

  DOI：

  10.1021/jo100312w

文献信息

• Intramolecular and intermolecular ketone–ester reductive coupling reactions promoted by samarium(II) iodide
  作者：Yunkui Liu、Yongmin Zhang

  DOI：10.1016/s0040-4039(01)01107-8

  日期：2001.8

  Intramolecular and intermolecular ketone–ester reductive coupling reactions promoted by SmI2 have been studied. Substituted 2-hydroxy-5-ethoxycarbonylcyclopentanones, 5-ethoxycarbonylcyclopentenones and α-ketols were prepared in moderate to good yields at room temperature or under reflux under neutral conditions.

  已经研究了由SmI 2促进的分子内和分子间酮-酯还原偶联反应。在室温下或在中性条件下在回流下以中等至良好的产率制备2-羟基-5-乙氧基羰基环戊烯酮，5-乙氧基羰基环戊烯酮和α-酮醇。
• Samarium(II) Iodide-Promoted Intermolecular and Intramolecular Ketone-Nitrile Reductive Coupling Reactions
  作者：Longhu Zhou、Yongmin Zhang、Daqing Shi

  DOI：10.1055/s-2000-6220

  日期：——

  Samarium(II) iodide, a strong one-electron transfer reducing reagent, has been successfully utilized for the intermolecular and intramolecular reductive coupling reactions of ketones with nitriles. α-Hydroxy ketones, monocyclic, fused bicyclic α-hydroxy ketones and monocyclic α-amino alcohols composed of a number of substitution patterns have been prepared in good yields at room temperature or reflux under neutral conditions. The procedure can avoid overreduction of the resulting of α-hydroxy ketones or α-amino alcohols. The crystal structures of monocyclic α-amino alcohols are reported.

  钐（II）碘化物是一种强的一电子转移还原试剂，已成功用于酮类与腈类的分子间和分子内还原偶联反应。在室温或回流的中性条件下，已经制备了多种取代模式的α-羟基酮、单环和融合双环的α-羟基酮以及单环的α-氨基醇，产率良好。该方法能够避免生成的α-羟基酮或α-氨基醇的过度还原。还报告了单环α-氨基醇的晶体结构。
• Rhodium-catalyzed addition of arylstannanes to carbon–heteroatom double bond
  作者：Shuichi Oi、Mitsutoshi Moro、Hiroe Fukuhara、Takanori Kawanishi、Yoshio Inoue

  DOI：10.1016/s0040-4020(03)00586-6

  日期：2003.6

  The addition of arylstannanes to the carbon–heteroatom double bond in the presence of a catalytic amount of a cationic rhodium complex ([Rh(cod)(MeCN)2]BF4) was examined. The reactions of aldehydes, α-dicarbonyl compounds, and N-substituted aldimines with the arylstannanes gave corresponding alcohols, α-hydroxy carbonyl compounds, and amines, respectively. An arylrhodium complex generated by the transmetalation

  研究了在催化量的阳离子铑配合物（[Rh（cod）（MeCN）2 ] BF 4）存在下，向碳-杂原子双键中添加了芳基锡烷。醛，α-二羰基化合物和N-取代的亚胺与芳基锡烷的反应分别得到相应的醇，α-羟基羰基化合物和胺。通过芳基锡烷的重金属化反应生成的芳基铑络合物可能是活性催化物质。
• Friedel-Crafts Arylation of α-Hydroxy Ketones: Synthesis of 1,2,2,2-Tetraarylethanones
  作者：Anil Kumar、Tej V. Singh、Sajesh P. Thomas、Paloth Venugopalan

  DOI：10.1002/ejoc.201403438

  日期：2015.2

  Friedel-Crafts arylation of a-hydroxy ketones such as 2-hydroxy- 1,2,2-triarylethanones has been achieved with a variety of arenes and heteroarenes in the presence of Lewis or Bronsted acids. Both sterically hindered and unhindered 1,2,2,2-tetrarylethanones are formed in good to excellent yields by using a stoichiometric amount of triflic acid. The intermediacy of an a-keto carbenium ion has been proposed

  在路易斯酸或布朗斯台德酸的存在下，已经用多种芳烃和杂芳烃实现了α-羟基酮例如2-羟基-1,2,2-三芳基乙酮的Friedel-Crafts芳基化。通过使用化学计量量的三氟甲磺酸，空间位阻和无位阻的 1,2,2,2-四芳基乙酮均以良好到极好的产率形成。已经提出了a-酮碳鎓离子的中间体。
• Indium(III) bromide catalyzed direct azidation of α-hydroxyketones using TMSN3
  作者：Anil Kumar、Ramesh K. Sharma、Tej V. Singh、Paloth Venugopalan

  DOI：10.1016/j.tet.2013.10.055

  日期：2013.12

  The direct catalytic azidation of 2-hydroxy-1,2,2-triarylethanones occurs at room temperature using 2 mol % of InBr3 as Lewis acid and TMSN3 as soluble azide source. 2-Azido-1,2,2-triarylethanones have been isolated in excellent yields. The role of aryl group and stereoelectronic factors indicate that the mechanism may involve the formation of a stable carbenium ion towards azidation. (C) 2013 Elsevier Ltd. All rights reserved.