4,4'-Diisopropyl-benzophenon | 21192-57-4

• 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: 4,4'-Diisopropyl-benzophenon
• 英文别名: bis(4-isopropylphenyl)methanone；Methanone, bis[4-(1-methylethyl)phenyl]-；bis(4-propan-2-ylphenyl)methanone
• CAS: 21192-57-4
• 化学式: C₁₉H₂₂O
• 分子量: 266.383
• InChiKey: HYMDTLMKYVMHTJ-UHFFFAOYSA-N

物化性质

• 沸点：
  348-349 °C
• 密度：
  1.0177 g/cm3(Temp: 10 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 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：

  4,4'-Diisopropyl-benzophenon 在 lithium aluminium tetrahydride 、 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 2.0h， 生成 (E)-1,1-bis(4-isopropylphenyl)-4,4-bis(4-methoxyphenyl)but-2-ene-1,4-diol
  参考文献：
  名称：

  通过手性离子配对实现的有机催化对映选择性长春新碱重排。

  摘要：

  开发了功能化（E）-2-丁烯-1,4-二醇的对映选择性频哪醇重排。在催化量的手性BINOL衍生的N - triflyl磷酰胺的存在下，这些1,4-二醇以优异的收率和对映选择性重排为β，γ-不饱和酮。假定在中间烯丙基阳离子和手性磷酰胺阴离子之间形成手性离子对是造成高效手性转移的原因。这些手性结构单元进一步转化为对映体富集的多取代的四氢呋喃和四氢萘衍生物。

  DOI：

  10.1002/anie.201609911
• 作为产物：
  描述：

  Methyl-2,2-bis--3-oxo-succinat 在 sodium dichromate 作用下， 生成 4,4'-Diisopropyl-benzophenon
  参考文献：
  名称：

  Nguyen Dinh An; Cerutti,E., Bulletin de la Societe Chimique de France, 1976, p. 589 - 595

  摘要：

  DOI：

文献信息

• Pd/Cu-Cocatalyzed Aerobic Oxidative Carbonylative Homocoupling of Arylboronic Acids and CO: A Highly Selective Approach to Diaryl Ketones
  作者：Long Ren、Ning Jiao

  DOI：10.1002/asia.201402326

  日期：2014.9

  A highly selective Pd/Cu‐cocatalyzed aerobic oxidative carbonylative homocoupling of arylboronic acids has been developed. This method employs a simple catalytic system, readily available boronic acids as the substrates, molecular oxygen as the oxidant, and 1 atm of CO/O2, which makes this method practical for further applications.

  已经开发出高选择性的Pd / Cu催化的芳基硼酸好氧氧化羰基均偶联剂。该方法采用简单的催化系统，以容易获得的硼酸为底物，以分子氧作为氧化剂，并使用1 atm的CO / O 2，这使该方法可用于进一步的应用。
• Synthesis of 1‐Tri(di)fluoromethyl 1,4‐Diketones Enabled by Radical Brook Rearrangement
  作者：Zhihong Zhu、Xiang Chen、Shanshan Liu、Jianjun Zhang、Xiao Shen

  DOI：10.1002/ejoc.202100860

  日期：2021.9.21

  The application of Mn-catalyzed radical Brook rearrangement of fluorinated organosilicon reagents in the synthesis of 1-trifluoromethyl and 1-difluoromethyl 1,4-diktones have been disclosed for the first time. The potential of this advance have been highlighted by the transformation of the products to biologically important fluoroalkylated heterocycles.

  首次公开了Mn催化的氟化有机硅试剂的自由基布鲁克重排在1-三氟甲基和1-二氟甲基1,4-二酮合成中的应用。将产品转化为具有生物学意义的氟烷基化杂环，突显了这一进步的潜力。
• Catalysts
  申请人：Hems Patrick William

  公开号：US20070066850A1

  公开（公告）日：2007-03-22

  Catalysts suitable for asymmetric hydrogenation reactions is described comprising the reaction product of a group (8) transition metal compound a chiral phosphine and a chiral diamine of formula (1) in which R 1 , R 2 R 3 or R 4 are independently hydrogen, a saturated or unsaturated alkyl, or cycloalkyl group, an aryl group, a urethane or sulphonyl group and R 5 , R 6 , R 7 or R 8 are independently hydrogen, a saturated or unsaturated alkyl or cycloalkyl group, or an aryl group, at least one of R 1 , R 2 , R 3 or R 4 is hydrogen and A is a linking group comprising one or two substituted or unsubstituted carbon atoms.

  本文描述了用于不对称氢化反应的催化剂，包括式（1）中的手性膦和手性二胺与8族过渡金属化合物的反应产物，其中R1、R2、R3或R4独立地为氢、饱和或不饱和烷基、环烷基、芳基、脲基或磺酰基，R5、R6、R7或R8独立地为氢、饱和或不饱和烷基或环烷基、或芳基，其中至少有一个为氢，A为含有一个或两个取代或未取代碳原子的连接基。
• Chiral Compound Suitable as a Catalyst for Asymmetric Transfer Hydrogenation
  申请人：Vries De Johannes Gerardus (Hans)

  公开号：US20080269529A1

  公开（公告）日：2008-10-30

  The invention relates to an enantiomerically enriched chiral compound comprising a transition metal M, which comprises four, five or six coordinating groups of which at least one pair is linked together to form a bidentate ligand, in which M is directly bound via one single σ-bond to a carbon atom of an optionally substituted and/or optionally fused (hetero)aromatic ring of said bidentate ligand and in which M is directly bound to a nitrogen atom of a primary or secondary amino group of said bidentate ligand, thereby forming a metallacycle between said bidentate ligand and the metal M, said metal M being selected from the metals of groups 8 and 9 of the Periodic Table of the Elements, in particular iron, ruthenium, osmium, cobalt, rhodium, or iridium. The chiral compound can be used as a catalyst, preferably in an asymmetric transfer hydrogenation process. The invention further relates to a process for an asymmetric transfer hydrogenation of a prochiral compound in the presence of a hydrogen donor and the chiral compound of the invention comprising a transition metal chosen from the metals of groups 8, 9 and 10 of the Periodic Table, in particular iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium or platinum as the catalyst.

  本发明涉及一种手性化合物，其中包含过渡金属M，该金属包含四个、五个或六个配位基团，其中至少一对基团连接在一起形成双齿配体。在该双齿配体的一个可选取代和/或可选融合的(杂)芳香环的碳原子上，M通过一个单一的σ键直接结合，并且M直接与双齿配体的一级或二级氨基团的氮原子结合，从而在双齿配体和金属M之间形成一个金属环。所述金属M选自元素周期表第8和第9组的金属，特别是铁、钌、锇、钴、铑或铱。该手性化合物可用作催化剂，优选在不对称转移氢化过程中使用。本发明还涉及一种在氢供体和来自元素周期表第8、9和10组的金属中选择的过渡金属，特别是铁、钌、锇、钴、铑、铱、镍、钯或铂作为催化剂的不对称转移氢化的过程。
• CATALYSTS
  申请人：Hems William Patrick

  公开号：US20100197976A1

  公开（公告）日：2010-08-05

  Catalysts suitable for asymmetric hydrogenation reactions is described comprising the reaction product of a group 8 transition metal compound a chiral phosphine and a chiral diamine of formula (I) in which R 1 , R 2 , R 3 and R 4 are independently hydrogen, a saturated or unsaturated alkyl or cycloalkyl group, an aryl group or a urethane or sulphonyl group and R 5 , R 6 , R 7 and R 8 are independently hydrogen, a saturated or unsaturated alkyl or cycloalkyl group, or an aryl group, at least one of R 1 , R 2 , R 3 and R 4 is hydrogen and A is a linking group comprising one or two substituted or unsubstituted carbon atoms.

  本文描述了适用于不对称氢化反应的催化剂，其包括由8族过渡金属化合物、手性膦和手性式(I)的二胺的反应产物。其中，R1、R2、R3和R4独立地为氢、饱和或不饱和的烷基或环烷基、芳基或脲或磺酰基；R5、R6、R7和R8独立地为氢、饱和或不饱和的烷基或环烷基或芳基；R1、R2、R3和R4中至少一个为氢；A为一个包含一个或两个取代或未取代碳原子的连接基团。