(R)-2-hydroxy-1-(2'-methoxyphenyl)-2-(2''-methoxyphenyl)ethanone

• 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: (R)-2-hydroxy-1-(2'-methoxyphenyl)-2-(2''-methoxyphenyl)ethanone
• 英文别名: (R)-2-hydroxy-1,2-bis(2-methoxyphenyl)ethan-1-one；(R)-2-hydroxy-1,2-bis-(2-methoxy-phenyl)ethanone；(R)-2-hydroxy-1,2-bis(2-methoxyphenyl)ethanone；(R)-2,2'-dimethoxybenzoin；(R)-o-methoxybenzoin；(R)-o-anisoin；(2R)-2-hydroxy-1,2-bis(2-methoxyphenyl)ethanone
• 化学式: C₁₆H₁₆O₄
• mdl: MFCD00600708
• 分子量: 272.301
• InChiKey: CKZXADVHFFKWKQ-OAHLLOKOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2,2'-dimethoxybenzoin 在 乙酸乙烯酯 作用下， 以 四氢呋喃 为溶剂， 反应 96.0h， 以11%的产率得到(R)-2-hydroxy-1-(2'-methoxyphenyl)-2-(2''-methoxyphenyl)ethanone
  参考文献：
  名称：

  Biocatalytic racemization of synthetically important functionalized α-hydroxyketones using microbial cells

  摘要：

  Biocatalytic racemization of straight-chain and cyclic acyloins bearing (halo)alkyl, alkenyl and functionalized (hetero)aryl moieties was accomplished using whole resting cells of bacteria, fungi and yeasts. Mild physiological reaction conditions ensured the suppression of undesired side-reactions, such as elimination or condensation. This biocatalytic protocol represents a useful tool for the clean racemization of unwanted enantiomers of synthetically important alpha-hydroxyketones derived from kinetic resolution. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.06.005

文献信息

• Synthesis of new chiral keto alcohols by baker’s yeast
  作者：Tülay Yıldız、Nurgül Çanta、Ayşe Yusufoğlu

  DOI：10.1016/j.tetasy.2014.01.003

  日期：2014.2

  Fourteen chiral α- and β-keto alcohols 2a–2r were synthesized by the asymmetric reduction of their corresponding diketones 1a–1r via baker’s yeast. In addition, ten corresponding racemic α-keto alcohols were synthesized by the benzoin condensation of their corresponding aldehydes, which were used for the determination of the ee values through their chiral resolution on chiral HPLC. Amongst the 15 diketones

  通过面包酵母通过不对称还原相应的二酮1a - 1r，合成了14种手性α-和β-酮醇2a - 2r。此外，通过苯甲酸的相应醛的苯偶姻缩合反应，合成了十种相应的外消旋α-酮醇，它们通过手性HPLC上的手性拆分用于测定ee值。在这15种二酮中，1j和手性α-酮醇2i，2j和手性β-酮醇2r是新型化合物。六种酮醇2b，2c，2d，2f，面包酵母首次合成了2h和2p。文献中有一些研究，其中在与本文报道的条件不同的各种条件下，将面包酵母应用于二酮1a，1g，1e，1k和1n。这些研究的产量和ee值不如我们的结果高。合成的所有酮醇均通过IR，NMR（1 H和13 C）和MS表征。还讨论了二酮的结构与产率，非对映选择性和对映体过量之间的关系。
• From Mono-Triazolium Salt to Bis-Triazolium Salt: Improvement of the Asymmetric Intermolecular Benzoin Condensation
  作者：Yajun Ma、Siping Wei、Jie Wu、Fei Yang、Bo Liu、Jingbo Lan、Shengyong Yang、Jingsong You

  DOI：10.1002/adsc.200800371

  日期：2008.11.3

  method for the enantioselective intermolecular benzoin condensation of aromatic aldehydes is described. The chiral bis-bicyclic triazolium salt – 1,3-bis(S)-5-benzyl-6,8-dihydro-5H-[1,4]oxazino[2,1-c][1,2,4]triazol-2-ium-2-yl}benzene dichloride [(S)-5a-1] is currently the most efficient precatalyst for the asymmetric variant of the benzoin condensation.

  描述了解决开发高效率的方法用于芳族醛的对映选择性分子间安息香缩合的长期挑战的解决方案。手性双-双环三唑鎓盐– 1,3-双（S）-5-苄基-6,8-二氢-5 H- [1,4]恶嗪[2,1- c ] [1,2,4 ]三唑-2-鎓-2-基}苯二氯化物[（S）-5a-1 ]目前是用于安息香缩合反应的不对称变体的最有效的预催化剂。
• Enantioselective Synthesis of α-Hydroxy Ketones via Benzaldehyde Lyase-Catalyzed C−C Bond Formation Reaction
  作者：Ayhan S. Demir、Özge Şeşenoglu、Elif Eren、Birsu Hosrik、Martina Pohl、Elena Janzen、Doris Kolter、Ralf Feldmann、Pascal Dünkelmann、Michael Müller

  DOI：10.1002/1615-4169(200201)344:1<96::aid-adsc96>3.0.co;2-z

  日期：2002.1

  (R)-Benzoins and (R)-2-hydroxypropiophenone derivatives are formed on a preparative scale by benzaldehyde lyase (BAL)-catalyzed C−C bond formation from aromatic aldehydes and acetaldehyde in aqueous buffer/DMSO solution with remarkable ease in high chemical yield and high optical purity. The substrate range of this thiamin diphosphate-dependent enzyme was examined with respect to a broad applicability

  （R）-苯甲酸酯和（R）-2-羟基苯乙酮衍生物是由苯甲醛裂解酶（BAL）催化的在水性缓冲液/ DMSO溶液中由芳族醛和乙醛催化的C-C键形成而制备的，在高化学条件下非常容易产率高且光学纯度高。关于该硫胺素二磷酸依赖性酶的底物范围，针对该苯偶姻缩合型反应在立体选择性合成中的广泛适用性进行了研究。
• The enantioselective benzoin condensation promoted by chiral triazolium precatalysts: stereochemical control via hydrogen bonding
  作者：Sarah E. O'Toole、Stephen J. Connon

  DOI：10.1039/b908517c

  日期：——

  The design of a new class of triazolium ion precatalysts incorporating protic substituents is described. These materials promote the enantioselective benzoin condensation of a range of aromatic aldehydes (1–62% ee). Catalyst evaluation studies strongly support the involvement of hydrogen bond donation by the catalyst in the stereocentre-forming step of the catalytic cycle.

  一类新的设计 三唑鎓描述了掺入质子取代基的离子预催化剂。这些材料可促进多种芳香醛（1–62％ee）的对映选择性安息香缩合。催化剂评估研究强烈支持氢 在催化循环的立体中心形成步骤中，催化剂提供的氢键键合。
• Galactose Oxidase Model: Biomimetic Enantiomer-Differentiating Oxidation of Alcohols by a Chiral Copper Complex
  作者：Santosh Kumar Alamsetti、Sreedevi Mannam、Pandi Mutupandi、Govindasamy Sekar

  DOI：10.1002/chem.200802064

  日期：2009.1.19

  GO for it! An enantiopure galactose oxidase (GO) enzyme model has been synthesized from readily available (R)‐binam and Cu(OTf)2 (see scheme; TEMPO=2,2,6,6‐tetramethyl‐piperidin‐1‐oxyl), and has been effectively used as an efficient chiral catalyst for the oxidative kinetic resolution of secondary alcohols. This is the first chiral copper‐catalyzed oxidative kinetic resolution of racemic benzoins and

  大胆试试吧！对映纯半乳糖氧化酶（GO）酶模型已从现成的（R）-比纳姆和Cu（OTf）2（参见方案; TEMPO = 2,2,6,6-四甲基-哌啶-1-氧）合成，并且已有效地用作仲醇的氧化动力学拆分的有效手性催化剂。这是外消旋安息香的第一个手性铜催化的氧化动力学拆分，也是合成高度重要的对映体富集的安息香的最简单方法。