(4-(tert-butyl)phenyl)(phenyl)methyl acetate | 1334474-85-9

• 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: (4-(tert-butyl)phenyl)(phenyl)methyl acetate
• 英文别名: [(4-tert-butylphenyl)-phenylmethyl] acetate
• CAS: 1334474-85-9
• 化学式: C₁₉H₂₂O₂
• 分子量: 282.382
• InChiKey: JIBIFDRGWRTZJE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.64
• 重原子数：
  21.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  (4-(tert-butyl)phenyl)(phenyl)methyl acetate 在 Burkholderica cepacia amano lipase 作用下， 以 丙酮 为溶剂， 生成 (R)-(4-tert-butylphenyl)(phenyl)methanol
  参考文献：
  名称：

  Synthesis of new (R)-secondary carbinols with different structures via enzymatic resolution

  摘要：

  The present study deals with the biocatalytic enantioselective synthesis of 19 new chiral alcohols with alkyl (C-11-C-19) and phenyl, substituted phenyl, heteroaromatic, and naphthyl groups 4a-4z with an (R)-configuration and high enantiomeric excess (similar to 100%). The corresponding ketones 1a-1z were synthesized and then reduced with NaBH4 to their racemic alcohols 2a-2z, which were converted into their racemic acetyl derivatives 3a-3z. Enzymes of four different types were used for the enantioselective hydrolysis of these acetyl compounds 3a-3z. The optimal reaction conditions for these four enzymes were established by investigating the enantiomeric excesses by chiral HPLC. Amano lipase from Burkholderica cepacia (Pseudomonas cepacia) AL-PS was determined as the best enzyme in this work This study presents an environmentally friendly and green chemistry method for the synthesis of these new (R)-chiral carbinols 4a-4z. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2011.07.017
• 作为产物：
  描述：

  4-叔丁基苯甲酮 在 sodium tetrahydroborate 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 0.5h， 生成 (4-(tert-butyl)phenyl)(phenyl)methyl acetate
  参考文献：
  名称：

  Synthesis of new (R)-secondary carbinols with different structures via enzymatic resolution

  摘要：

  The present study deals with the biocatalytic enantioselective synthesis of 19 new chiral alcohols with alkyl (C-11-C-19) and phenyl, substituted phenyl, heteroaromatic, and naphthyl groups 4a-4z with an (R)-configuration and high enantiomeric excess (similar to 100%). The corresponding ketones 1a-1z were synthesized and then reduced with NaBH4 to their racemic alcohols 2a-2z, which were converted into their racemic acetyl derivatives 3a-3z. Enzymes of four different types were used for the enantioselective hydrolysis of these acetyl compounds 3a-3z. The optimal reaction conditions for these four enzymes were established by investigating the enantiomeric excesses by chiral HPLC. Amano lipase from Burkholderica cepacia (Pseudomonas cepacia) AL-PS was determined as the best enzyme in this work This study presents an environmentally friendly and green chemistry method for the synthesis of these new (R)-chiral carbinols 4a-4z. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2011.07.017

文献信息

• Metal-Free Aerobic Oxidative C-O Coupling of C(<i>sp</i> ³ )-H with Carboxylic Acids Catalyzed by DDQ and <i>tert</i> -Butyl Nitrite
  作者：Decheng Pan、Zilong Pan、Zhiming Hu、Meichao Li、Xinquan Hu、Liqun Jin、Nan Sun、Baoxiang Hu、Zhenlu Shen

  DOI：10.1002/ejoc.201900773

  日期：2019.9.8

  metal‐free aerobic oxidative cross‐coupling reaction between a benzylic C(sp3)–H bond and a carboxylic acid catalyzed by 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone and tert‐butyl nitrite has been developed. This protocol provides a mild and efficient route to obtain diarylmethanol esters and phthalides. It can be regarded as a typical example of green chemistry in oxidative C–O coupling.

  苄基C（sp 3）-H键与2,3-二氯-5,6-二氰基-1,4-苯醌和亚硝酸叔丁酯催化的羧酸之间的无金属好氧氧化交叉偶联反应具有已开发。该方案为获得二芳基甲醇酯和邻苯二甲酸酯提供了温和而有效的途径。可以将其视为氧化C–O耦合中绿色化学的典型示例。
• Kinetic and Dynamic Kinetic Resolution of Secondary Alcohols with Ionic-Surfactant-Coated <i>Burkholderia cepacia</i> Lipase: Substrate Scope and Enantioselectivity
  作者：Cheolwoo Kim、Jusuk Lee、Jeonghun Cho、Yeonock Oh、Yoon Kyung Choi、Eunjeong Choi、Jaiwook Park、Mahn-Joo Kim

  DOI：10.1021/jo3027627

  日期：2013.3.15

  Forty-four different secondary alcohols, which can be classified into several types (II-IX), were tested as the substrates of ionic surfactant-coated Burkholderia cepacia lipase (ISCBCL) to see its substrate scope and enantioselectivity in kinetic and dynamic kinetic resolution (KR and DKR). They include 6 boron-containing alcohols, 24 chiral propargyl alcohols, and 14 diarylmethanols. The results

  测试了可以分为几种类型（II-IX）的44种不同的仲醇作为离子表面活性剂涂层洋葱伯克霍尔德菌的底物脂肪酶（ISCBCL），以了解其底物范围和动力学和动态动力学分辨率（KR和DKR）中的对映选择性。它们包括6种含硼醇，24种手性炔丙基醇和14种二芳基甲醇。有关KR的研究结果表明，ISCBCL在环境温度下对映体选择性高，并且对升高温度下对映体选择性高有用。尤其是，ISCBCL对对空间要求高的仲醇（VIII和IX型）显示出高对映选择性，所述仲醇在羟基次甲基中心有两个庞大的取代基。DKR反应是通过在25–60°C下将ISCBCL与钌基外消旋催化剂结合使用来进行的。测试了41种仲醇的DKR。其中约有一半被转化为高对映体纯度的乙酸盐（> 90％ee），且收率良好（> 80％）。结论是，ISCBCL对于仲醇的KR和DKR似乎是一种极好的酶。