(S)-(4-methoxyphenyl)phenylmethanol

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (S)-(4-methoxyphenyl)phenylmethanol
• 英文别名: (4-methoxyphenyl)(phenyl)methanol；4-methoxybenzhydrol；(S)-4-methoxybenzhydrol；(S)-(4-methoxyphenyl)-phenylmethanol
• 化学式: C₁₄H₁₄O₂
• 分子量: 214.264
• InChiKey: BEGZWXVLBIZFKQ-AWEZNQCLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  29.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (S)-(4-methoxyphenyl)phenylmethanol 在 bis(1,5-cyclooctadiene)nickel (0) 、 sodium hydride 、 双(2-二苯基磷苯基)醚 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 生成 (R)-1-methoxy-4-(1-phenylethyl)benzene
  参考文献：
  名称：

  立体定向镍催化的烷基-烷基交叉偶联反应的无痕导向基团

  摘要：

  据报道，苄基2-甲氧基乙基醚的立体特异性镍催化的交叉偶联反应用于制备对映体富集的1，1-二芳基乙烷。2-甲氧基乙基醚用作加速交叉偶联的无痕导向基团。提出镁离子螯合可激活苄基C–O键以进行氧化加成。

  DOI：

  10.1021/ol300891k
• 作为产物：
  描述：

  (R)-3-(4-methoxyphenyl)-1,1-dimethyl-1,3-dihydrobenzo[c][1,2]oxasilole 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 以75%的产率得到(S)-(4-methoxyphenyl)phenylmethanol
  参考文献：
  名称：

  Nickel(0)-Catalyzed Enantio- and Diastereoselective Synthesis of Benzoxasiloles: Ligand-Controlled Switching from Inter- to Intramolecular Aryl-Transfer Process

  摘要：

  A highly enantioselective synthesis of 3-aryl-, vinyl-, and alkynyl-2,1-benzoxasiloles (up to 99.9% ee and 99% yield) was achieved via the sequential activation of an aldehyde and a silane by nickel(0). This strategy was applied to a simultaneous generation of carbon- and silicon-stereogenic centers with excellent selectivity (dr = 99:1) via diastereotopic aryl transfer. Initial mechanistic studies revealed the complete switching of an aryl-transfer process from an intermolecular (racemic synthesis in the presence of IPr) to an intramolecular (enantioselective synthesis using chiral NHC, L5) fashion. A plausible rationale for the switching of the aryl-transfer process is given by a preliminary DFT calculation, which suggests that the coordination of 1 to the nickel(0)/L5 fragment in an eta(2)-arene:eta(2)-aldehyde fashion would be a key to the intramolecular process, while the formation of the corresponding intermediate is not possible in the presence of IPr. Owing to the chemically labile nature of its C-Si and O-Si bonds, enantioenriched benzoxasiloles are utilized for the synthesis of chiral building blocks and antihistaminic and anticholinergic drug molecules such as (R)-orphenadrine and (S)-neobenodine with no erosion of the enantiomeric excess.

  DOI：

  10.1021/jacs.5b07827

文献信息

• Enantioselective Diarylcarbene Insertion into Si–H Bonds Induced by Electronic Properties of the Carbenes
  作者：Liang-Liang Yang、Declan Evans、Bin Xu、Wen-Tao Li、Mao-Lin Li、Shou-Fei Zhu、K. N. Houk、Qi-Lin Zhou

  DOI：10.1021/jacs.0c04725

  日期：2020.7.15

  enantioselection usually depends on differences in steric interactions between prochiral substrates and a chiral catalyst. We have discovered a carbene Si-H insertion in which the enantioselectivity depends primarily on the electronic characteristics of the carbene substrate, and the log(er) values are linearly related to Hammett parameters. A new class of chiral tetraphosphate dirhodium catalysts was developed

  催化对映选择通常取决于前手性底物和手性催化剂之间空间相互作用的差异。我们发现了一种卡宾 Si-H 插入，其中对映选择性主要取决于卡宾底物的电子特性，并且 log(er) 值与哈米特参数线性相关。开发了一类新的手性四磷酸二铑催化剂，该催化剂在二芳基卡宾插入硅烷的 Si-H 键方面表现出优异的活性和对映选择性。计算和机械研究表明卡宾的两个芳基之间的电子差异如何导致非对映过渡态能量的差异。该研究为利用基材的电子特性进行不对称催化提供了一种新策略。
• Resolution of Racemic 2-Aminocyclohexanol Derivatives and Their Application as Ligands in Asymmetric Catalysis
  作者：Ingo Schiffers、Toni Rantanen、Frank Schmidt、Werner Bergmans、Lorenzo Zani、Carsten Bolm

  DOI：10.1021/jo052433w

  日期：2006.3.1

  trans-2-(N-benzyl)amino-1-cyclohexanol by hydrogenation and subsequent derivatization give access to a broad variety of diversely substituted derivatives. Furthermore, the corresponding cis isomers are readily available. Applications of these optically active aminocyclohexanols in catalyzed asymmetric phenyl transfer reactions to benzaldehydes and transfer hydrogenations of aryl ketones lead to products with

  描述了用于拆分外消旋2-氨基环己醇衍生物的制备上容易且有效的方案，通过顺序使用（R）-和（S）-扁桃酸递送两种对映体，其对映体过量（ee）均大于99％。简单的水后处理程序可分离出分析纯形式的氨基醇，并几乎定量回收扁桃酸。对映体反式-2-（N的脱苄基作用-苄基）氨基-1-环己醇通过氢化和随后的衍生作用获得了各种各样的不同取代的衍生物。此外，相应的顺式异构体是容易获得的。这些光学活性氨基环己醇在催化的不对称苯基转移反应中转化为苯甲醛和转移芳基酮的氢化反应，可产生ee高达96％的产物。
• Synthesis of the bifunctional BINOL ligands and their applications in the asymmetric additions to carbonyl compounds
  作者：Ying-Chuan Qin、Lan Liu、Michal Sabat、Lin Pu

  DOI：10.1016/j.tet.2006.06.049

  日期：2006.10

  the diphenylzinc addition which often require the addition of a significant amount of diethylzinc with cooling (or heating) the reaction mixture in order to achieve high enantioselectivity, using (S)-8 needs no additive and gives excellent results at room temperature. (S)-8 in combination with diethylzinc and Ti(OiPr)4 can catalyze the highly enantioselective phenylacetylene addition to aromatic aldehydes

  分别从BINOL和H 8 BINOL与吗啉代甲醇的反应中开发了双功能BINOL和H 8 BINOL配体（S）-6和（S）-8的高效一步合成方法。这些化合物的X射线分析表明它们在结构上有相似之处和不同之处。双功能H 8 BINOL（S）-8已发现对二苯基锌与许多脂族和芳族醛的反应具有很高的对映选择性，尤其是对于线性脂族醛而言，对映选择性最强的催化剂。与开发用于添加二苯锌的其他催化剂不同，该催化剂通常需要在冷却（或加热）的同时添加大量的二乙基锌以实现高对映选择性，使用（S）-8无需添加剂，在室温下可获得优异的结果温度。（S）-8与二乙基锌和Ti（O i Pr）4结合可以催化高度对映选择性的苯乙炔加成芳族醛。尽管对映选择性还不是很高，但它在室温下还可以促进苯乙炔向苯乙酮的添加。在不使用Ti（O i Pr）4和路易斯碱添加剂的情况下，（S）-8与二乙基锌结合可以催化丙酸甲酯与醛的反应，形成高官能度
• Catalytic enantioselective arylation of aldehydes: boronic acids as a suitable source of transferable aryl groups
  作者：Antonio L. Braga、Diogo S. Lüdtke、Fabrício Vargas、Marcio W. Paixão

  DOI：10.1039/b501485a

  日期：——

  The catalytic enantioselective arylation of several aldehydes using boronic acids as the source of transferable aryl groups is described; the reaction is found to proceed in excellent yields and high enantioselectivities (up to 97% ee) in the presence of a chiral amino alcohol.

  描述了使用硼酸作为可转移芳基的来源的几种醛的催化对映选择性芳基化；在手性氨基醇的存在下，发现该反应以优异的产率和高的对映选择性（高达97％ee）进行。
• Cobalt-Catalyzed Addition Reaction of Organoboronic Acids with Aldehydes: Highly Enantioselective Synthesis of Diarylmethanols
  作者：Jaganathan Karthikeyan、Masilamani Jeganmohan、Chien-Hong Cheng

  DOI：10.1002/chem.201001160

  日期：——

  Predicted outcomes: The addition reaction of organoboronic acids with aldehydes in the presence of K2CO3 catalyzed by CoI2/(R,R)‐BDPP gives chiral secondary alcohols in excellent yields with 90–99 % enantiomeric excess (see scheme; (R,R)‐BDPP=(2R,4R)‐(+)‐2,4‐bis(diphenylphosphino)pentane). This method provides an alternative to prepare an R and S enantiomeric pair by using the same chiral ligand and

  预期的结果：在CoI 2 /（R，R）-BDPP催化下，在存在K 2 CO 3的情况下，有机硼酸与醛的加成反应可得到出色的手性仲醇，对映体过量90-99％（参见方案；（R，R）-BDPP =（2 R，4 R）-（+）-2,4-双（二苯基膦基）戊烷）。该方法提供了另一种通过使用相同的手性配体制备R和S对映体对的方法，并且可以预测反应的立体化学结果。