alpha-氧代[1,1'-联苯]-4-乙酸乙酯 | 6244-53-7

• 物质功能分类: 化学试剂 - 有机试剂 - 多环化合物
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: alpha-氧代[1,1'-联苯]-4-乙酸乙酯
• 英文名称: ethyl (4-phenylphenyl)glyoxylate
• 英文别名: ethyl 2-(biphenyl-4-yl)-2-oxoacetate；Ethyl 4-phenylbenzoylformate；ethyl 2-oxo-2-(4-phenylphenyl)acetate
• CAS: 6244-53-7
• 化学式: C₁₆H₁₄O₃
• 分子量: 254.285
• InChiKey: JSNHSBCQHIQENB-UHFFFAOYSA-N

物化性质

• 熔点：
  38-39 °C
• 沸点：
  205 °C(Press: 5 Torr)
• 密度：
  1.141±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2918300090

反应信息

• 作为反应物：
  描述：

  alpha-氧代[1,1'-联苯]-4-乙酸乙酯 在 磷化氢 、 乙醇 、 platinum palladium-catalyst 、 碘 、 溶剂黄146 作用下， 生成 4-联苯乙酸
  参考文献：
  名称：

  Antispasmodics. V

  摘要：

  DOI：

  10.1021/ja01249a021
• 作为产物：
  描述：

  草酸二乙酯 在 magnesium 作用下， 以 四氢呋喃 为溶剂， 反应 1.67h， 以55%的产率得到alpha-氧代[1,1'-联苯]-4-乙酸乙酯
  参考文献：
  名称：

  WO2008/13963

  摘要：

  公开号：

文献信息

• Cationic Ir/Me-BIPAM-Catalyzed Asymmetric Intramolecular Direct Hydroarylation of α-Ketoamides
  作者：Tomohiko Shirai、Hajime Ito、Yasunori Yamamoto

  DOI：10.1002/anie.201400147

  日期：2014.3.3

  Asymmetric intramolecular direct hydroarylation of α‐ketoamides gives various types of optically active 3‐substituted 3‐hydroxy‐2‐oxindoles in high yields with complete regioselectivity and high enantioselectivities (84–98 % ee). This is realized by the use of the cationic iridium complex [Ir(cod)2](BArF4) and the chiral O‐linked bidentate phosphoramidite (R,R)‐Me‐BIPAM.

  α-酮酰胺的不对称分子内直接氢芳基化反应可高产率获得各种类型的旋光3-取代3-羟基2-羟吲哚，具有完全的区域选择性和高对映选择性（84–98％ee）。这是通过使用阳离子铱络合物[Ir（cod）2 ]（BAr F 4）和手性O联双齿亚磷酰胺（R，R）-Me-BIPAM来实现的。
• Rhodium(<scp>iii</scp>)-catalyzed C–H allylation of electron-deficient alkenes with allyl acetates
  作者：Chao Feng、Daming Feng、Teck-Peng Loh

  DOI：10.1039/c4cc07597h

  日期：——

  Rhodium-catalyzed C–H allylation of acrylamide derivatives with various allyl acetates was reported. The use of weakly coordinating directing group resulted in high reaction efficiency and excellent γ-selectivity. This reaction displays broad functional group tolerance, which opens a new synthetic pathway for the access of functionalized 1,4-diene skeletons.

  铑催化的C-H烯丙基化反应报道了使用各种烯丙醋酸酯对丙烯酰胺衍生物进行反应。使用弱配位导向基团导致高反应效率和优异的γ-选择性。该反应显示出广泛的官能团容忍性，为获得官能化的1,4-二烯骨架开辟了新的合成途径。
• Electrochemistry-Enabled Ir-Catalyzed Vinylic C–H Functionalization
  作者：Qi-Liang Yang、Yi-Kang Xing、Xiang-Yang Wang、Hong-Xing Ma、Xin-Jun Weng、Xiang Yang、Hai-Ming Guo、Tian-Sheng Mei

  DOI：10.1021/jacs.9b11915

  日期：2019.12.4

  Synergistic use of electrochemistry and organometallic catalysis has emerged as a powerful tool for site-selective C-H functionalization, yet this type of transformation has thus far mainly been limited to arene C-H functionaliza-tion. Herein, we report the development of electrochemi-cal vinylic C-H functionalization of acrylic acids with al-kynes. In this reaction an iridium catalyst enables C-H/O-H

  电化学和有机金属催化的协同使用已成为位点选择性 CH 功能化的有力工具，但迄今为止这种类型的转化主要限于芳烃 CH 功能化。在此，我们报告了用炔烃对丙烯酸进行电化学乙烯基 CH 官能化的发展。在该反应中，铱催化剂能够实现 CH/OH 官能化以进行炔环化，从而在未分割的电池中提供具有良好至优异产率的 α-吡喃酮。初步机理研究表明，阳极氧化对于从二烯-Ir(I) 络合物中释放产物和再生 Ir(III) 中间体至关重要，二烯-Ir(I) 络合物是一种配位饱和的 18 电子络合物。重要的，
• Copper on charcoal: Cu⁰ nanoparticle catalysed aerobic oxidation of α-diazo esters
  作者：Rong Zhao、Jiangge Teng、Zhiwei Wang、Wenwen Dong、Jia Lin、Changhu Chu

  DOI：10.1039/d1ob00811k

  日期：——

  By using a charcoal supported nano Cu0 catalyst (Cu/C), a highly efficient oxidation of α-diazo esters to α-ketoesters with molecular oxygen as the sole oxidant has been developed. In the presence of the Cu/C catalyst, 2-aryl-α-diazo esters with both electron-donating and electron-withdrawing groups can be oxidized to the corresponding α-ketoesters efficiently. Furthermore, this Cu/C catalyst can catalyse

  通过使用木炭负载纳米Cu 0催化剂（Cu / C），已开发出一种以分子氧为唯一氧化剂将α-重氮酯高效氧化为α-酮酯的方法。在Cu/C催化剂存在下，具有给电子基团和吸电子基团的2-芳基-α-重氮酯可以有效地氧化成相应的α-酮酯。此外，该Cu/C催化剂可以催化芳基α-重氮酯与水反应生成芳基酮酯、2-芳基-2-羟基乙酸酯和2-芳基乙酸酯。在这种情况下，水被α-重氮酯分解，重氮基团被水中的氧或氢原子取代。机理研究表明，α-重氮酯与氧的反应通过自由基途径进行。在 2,2,6,6-四甲基哌啶氮氧化物存在下，α-重氮酯与氧的反应被显着抑制。此外，通过同位素示踪法研究了α-重氮酯与水的反应，GCMS检测表明α-重氮酯与水发生了歧化反应。
• Quantitative relations between structure and activation of fibrinolysis in selected series of arylaliphatic acids
  作者：Miroslav Kuchař、Bohumila Brunová、Václav Rejholc、Magda Jelínková、Jiří Holubek、Oldřich Němeček

  DOI：10.1135/cccc19840122

  日期：——

  The paper describes the reaction of arylacetones IX with triethyl phosphonoacetate, producing esters of 4-aryl-3-methyl-2-butenoic acid, X, and 4-aryl-3-methyl-3-butenoic acid, X'. Their hydrolysis gave a mixture of the isomeric acids I and I', whose composition was investigated by ¹H NMR spectra. Also prepared were 3-methyl-3-phenyl-2-propenoic acids, II, 2-aryl-2-hydroxypropanoic acids, IV, and substituted α-benzyloxyphenylacetic acids, V. These acids, along with aryloxoaliphatic acids III, were investigated for efficacy in activation of fibrinolysis. The lipophilicites of the acids studied were determined either through the partition coefficients (acids Ia and IIa), using a system n-octanol-water (pH 3.5) or by partition chromatography. The experimental values of log Pwere compared with those calculated from the fragmental constants f and the parameters π. With the acids V the decrease in lipophilicity was similar to that observed with arylalkoxyaliphatic acids. With the acids, I, I' and II the fibrinolytic capacity was linearly proportional to lipophilicity. Although we evaluated fibrinolytic capacity of mixtures of the acids I and I', the linear relation was in agreement with that derived previously for a group of arylaliphatic acids. The presence of a functional group on the connecting chain in the acids III and IV had a negative effect on the fibrinolytic capacity. The decrease in fibrinolytic capacity might be due the functional groups being capable of forming hydrogen bonds.

  这篇论文描述了芳基醋酮IX与三乙基磷酸乙酯反应，生成4-芳基-3-甲基-2-丁烯酸酯X和4-芳基-3-甲基-3-丁烯酸酯X'。它们的水解产生了异构酸I和I'的混合物，其组成通过¹H NMR谱进行了研究。还制备了3-甲基-3-苯基-2-丙烯酸II，2-芳基-2-羟基丙酸IV和取代的α-苄氧基苯乙酸V。这些酸，连同芳基氧代脂肪酸III，被研究其在激活纤溶作用中的功效。所研究的酸的亲脂性通过分配系数（酸Ia和IIa）或通过分配色谱法在正辛醇-水（pH 3.5）体系中确定。实验值log P与从片段常数f和参数π计算得到的值进行了比较。对于酸V，亲脂性的降低类似于观察到的芳基氧代脂肪酸。对于酸I, I'和II，纤溶能力与亲脂性成正比。尽管我们评估了酸I和I'的混合物的纤溶能力，但线性关系与先前得出的一组芳基脂肪酸的结果一致。酸III和IV中连接链上的功能基团对纤溶能力有负面影响。纤溶能力的降低可能是由于功能基团能够形成氢键。