(5-bromo-2-methylphenyl)(phenyl)methanone | 439937-52-7

• 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: (5-bromo-2-methylphenyl)(phenyl)methanone
• 英文别名: (5-bromo-2-methylphenyl)-phenylmethanone
• CAS: 439937-52-7
• 化学式: C₁₄H₁₁BrO
• 分子量: 275.145
• InChiKey: ANUVSUAAQDMRJQ-UHFFFAOYSA-N

物化性质

• 熔点：
  40-42 °C
• 沸点：
  135-140 °C(Press: 0.05 Torr)
• 密度：
  1.375±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (5-bromo-2-methylphenyl)(phenyl)methanone 在 N-溴代丁二酰亚胺(NBS) 、 过氧化苯甲酰 作用下， 以 四氯化碳 为溶剂， 反应 5.0h， 生成
  参考文献：
  名称：

  Imidazolylmethylbenzophenones as Highly Potent Aromatase Inhibitors

  摘要：

  Suppression of tumor and plasma estrogen levels by inhibition of aromatase is one of the most effective treatments for postmenopausal breast cancer patients. Starting from an easy, synthetically accessible, benzophenone scaffold, a new class of potent aromatase inhibitors was synthesized, endowed with high selectivity with respect to 17 alpha-hydroxylase/17,20-lyase (CYP17). Compounds 1b and 1d proved to be among the most potent inhibitors described so far.

  DOI：

  10.1021/jm0702938
• 作为产物：
  描述：

  (5-氨基-2-甲基苯基)(苯基)甲酮 在 氢溴酸 、 sodium nitrite 、 copper(I) bromide 作用下， 反应 1.0h， 以38%的产率得到(5-bromo-2-methylphenyl)(phenyl)methanone
  参考文献：
  名称：

  Imidazolylmethylbenzophenones as Highly Potent Aromatase Inhibitors

  摘要：

  Suppression of tumor and plasma estrogen levels by inhibition of aromatase is one of the most effective treatments for postmenopausal breast cancer patients. Starting from an easy, synthetically accessible, benzophenone scaffold, a new class of potent aromatase inhibitors was synthesized, endowed with high selectivity with respect to 17 alpha-hydroxylase/17,20-lyase (CYP17). Compounds 1b and 1d proved to be among the most potent inhibitors described so far.

  DOI：

  10.1021/jm0702938

文献信息

• Microwave-Assisted Facile and Rapid Friedel–Crafts Benzoylation of Arenes Catalyzed by Bismuth Trifluoromethanesulfonate
  作者：Phuong Hoang Tran、Poul Erik Hansen、Thuy Thanh Pham、Vy Thanh Huynh、Vy Hieu Huynh、Thao Du Thi Tran、Thanh Van Huynh、Thach Ngoc Le

  DOI：10.1080/00397911.2014.906042

  日期：2014.10.18

  investigated in Friedel–Crafts benzoylation under microwave irradiation. Friedel–Crafts benzoylation with benzoyl chloride of a variety of arenes containing electron-rich and electron-poor rings using bismuth triflate under microwave irradiation is described. This method allows the preparation of aryl ketones under solventless conditions in good to excellent yields and short reaction time. Bismuth triflate

  摘要 研究了金属三氟甲磺酸盐在微波辐射下的 Friedel-Crafts 苯甲酰化反应中的催化活性。描述了在微波辐射下使用三氟甲磺酸铋与含富电子和缺电子环的各种芳烃的苯甲酰氯的 Friedel-Crafts 苯甲酰化反应。该方法允许在无溶剂条件下以良好至极好的收率和较短的反应时间制备芳基酮。三氟甲磺酸铋很容易回收并重复使用五次，而催化活性没有显着损失。图形概要
• Enantioselective Organocatalytic Diels-Alder Trapping of Photochemically Generated Hydroxy-<i>o</i> -Quinodimethanes
  作者：Luca Dell'Amico、Alberto Vega-Peñaloza、Sara Cuadros、Paolo Melchiorre

  DOI：10.1002/anie.201509472

  日期：2016.3.1

  generated hydroxy‐o‐quinodimethanes with high stereoselectivity. We used a chiral organic catalyst, derived from natural cinchona alkaloids, to activate maleimides toward highly stereoselective Diels–Alder reactions. An unconventional mechanism of stereocontrol is operative, wherein the organocatalyst is actively involved in both the photochemical pathway, by leveraging the formation of the reactive photoenol

  光化/ Diels-Alder策略可直接获得具有合成价值的苯环化碳环产品。这个历史悠久的光触发过程从未屈服于开发对映选择性催化方法的努力。本文中，我们证明了不对称有机催化如何提供简单而有效的催化工具来拦截光化学生成的羟基邻苯二酚。具有高立体选择性的喹啉甲烷。我们使用了衍生自天然金鸡纳生物碱的手性有机催化剂，将马来酰亚胺活化为高度立体选择性的Diels-Alder反应。一种非常规的立体控制机制是有效的，其中有机催化剂通过利用反应性光烯醇的形成和立体选择性定义事件而积极地参与了光化学途径。
• Light-Driven Enantioselective Organocatalytic β-Benzylation of Enals
  作者：Luca Dell'Amico、Victor M. Fernández-Alvarez、Feliu Maseras、Paolo Melchiorre

  DOI：10.1002/anie.201612159

  日期：2017.3.13

  A photochemical organocatalytic strategy for the direct enantioselective β‐benzylation of α,β‐unsaturated aldehydes is reported. The chemistry capitalizes upon the light‐triggered enolization of 2‐alkyl‐benzophenones to afford hydroxy‐o‐quinodinomethanes. These fleeting intermediates are stereoselectively intercepted by chiral iminium ions, transiently formed upon condensation of a secondary amine

  报道了一种用于 α,β-不饱和醛直接对映选择性 β-苄基化的光化学有机催化策略。该化学利用 2-烷基-二苯甲酮的光触发烯醇化来产生羟基-邻-醌二甲烷。这些短暂的中间体被手性亚胺离子立体选择性地拦截，在仲胺催化剂与烯醛缩合时瞬时形成。密度泛函理论（DFT）研究解释了为什么反应通过非常规的迈克尔型加成流形进行，而不是经典的环加成机制和随后的开环。
• Forging Fluorine-Containing Quaternary Stereocenters by a Light-Driven Organocatalytic Aldol Desymmetrization Process
  作者：Sara Cuadros、Luca Dell'Amico、Paolo Melchiorre

  DOI：10.1002/anie.201706763

  日期：2017.9.18

  2-fluoro-substituted cyclopentane-1,3-diketones (1) leads to the stereoselective construction of valuable fluorine-containing quaternary stereocenters. The chemistry exploits the ability of a readily available amido-thiourea catalyst to selectively activate one of the enantiotopic carbonyl groups within 1 and promote an intermolecular aldol reaction of hydroxy-o-quinodimethanes, which are photochemically

  破坏对称！非手性2-氟取代的环戊烷-1,3-二酮（1）的去对称化导致有价值的含氟季立体中心的立体选择性结构。化学利用了容易得到的酰氨基-硫脲催化剂，以选择性地激活内的对映羰基中的一个的能力1和促进的羟基的分子间醇醛缩合反应ø -quinodimethanes，其光化学从生成2。
• Light-Triggered Catalytic Asymmetric Allylic Benzylation with Photogenerated <i>C</i>-Nucleophiles
  作者：Suva Paria、Edoardo Carletti、Michela Marcon、Alessio Cherubini-Celli、Andrea Mazzanti、Marzio Rancan、Luca Dell’Amico、Marcella Bonchio、Xavier Companyó

  DOI：10.1021/acs.joc.0c00175

  日期：2020.3.20

  Herein is reported the asymmetric allylic benzylation of Morita-Baylis-Hillman (MBH) carbonates with 2-methylbenzophenone (MBP) derivatives as nonstabilized photogenerated C-nucleophiles. The dual activation of both reaction partners, chiral Lewis-base activation of the electrophile and light activation of the nucleophile, enables the stereoselective installation of benzyl groups at the allylic position

  本文报道了森田-贝利斯-希尔曼（MBH）碳酸酯与2-甲基二苯甲酮（MBP）衍生物作为不稳定的光生C-亲核试剂的不对称烯丙基苄基化反应。两种反应伙伴的双重激活，亲电试剂的手性路易斯碱激活和亲核试剂的光激活，使得苄基在烯丙基位置立体选择性地安装，从而形成了叔碳和季碳中心。