4-methoxy-3',4'-dichlorobiphenyl | 56206-81-6

• 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-methoxy-3',4'-dichlorobiphenyl
• 英文别名: 3,4-dichloro-4'-methoxy-1,1'-biphenyl；3,4-dichloro-4′-methoxy-1,1′-biphenyl；3,4-Dichlor-4'-methoxybiphenyl；3,4-dichloro-4'-methoxybiphenyl；1,2-Dichloro-4-(4-methoxyphenyl)benzene
• CAS: 56206-81-6
• 化学式: C₁₃H₁₀Cl₂O
• 分子量: 253.128
• InChiKey: LWNKDANCLVOYTD-UHFFFAOYSA-N

物化性质

• 沸点：
  359.6±32.0 °C(Predicted)
• 密度：
  1.249±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-methoxy-3',4'-dichlorobiphenyl 在 盐酸 、 sodium chlorate 作用下， 以 溶剂黄146 为溶剂， 反应 0.5h， 生成 1,3-二氯-5-(3,4-二氯苯基)-2-甲氧基苯
  参考文献：
  名称：

  Synthesis and mass spectrometry of some methoxylated PCB

  摘要：

  The syntheses of 46 methoxy-polychlorobiphenyls (MeO-CBs), containing 3 to 7 chlorine atoms, are described. The MeO-CBs were synthesized via the Cadogan diaryl coupling reaction of the appropriate polychloroaniline and polychloroanisole, or via the Ullmann coupling of a polychloroiodobenzene and 4-iodoanisole with subsequent chlorination of the isolated 4-MeO-CB product. The synthesized MeO-CBs were characterized by electron ionization (EI) mass spectrometry (MS) on an ion trap MS instrument and by EI and negative ion chemical ionization (NICI) on a quadrupole mass spectrometer.Both instruments gave similar EI spectra but the fragments were in general more abundant relative to the molecular ion, in the spectra obtained from the ion trap instrument. Characteristic fragmentation patterns were obtained by EI for ortho-, meta- and para-MeO-CBs, respectively, depending on the position of the MeO-group, with the exception of three meta-substituted MeO-heptaCBs, with a 3-MeO-2,4,6-trichloro-substitution pattern, that gave an abundant [M-15](+)-fragment, similar to para-substituted MeO-CBs. MS(NICI) of ortho-, meta- and para-MeO-CBs did not give any characteristic fragmentation patterns depending on the position of the MeO-group, except for ortho-substituted MeO-CBs that showed abundant fragments at [M-36]. The MS(NICI) gave approximately 10-50 times higher response for MeO-tetraCBs - MeO-heptaCBs than the MS(EI). The ion trap instrument (ITS40) has a somewhat lower detection-limit than the quadrupole MS when operated in the EI-mode.

  DOI：

  10.1016/0045-6535(95)00073-h
• 作为产物：
  描述：

  bis(4-methoxyphenyl)iodonium tetrafluoroborate 在 sodium tetrachloroplatinate(II) hydrate 、 sodium 2,2,2-trifluoroacetate 、 四丁基三氟甲磺酸铵 、 溶剂黄146 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 72.0h， 生成 4-methoxy-3',4'-dichlorobiphenyl
  参考文献：
  名称：

  铂催化的简单芳烃的 C–H 芳基化

  摘要：

  本报告描述了 Na2PtCl4 催化芳烃底物与二芳基碘盐的 CH 芳基化。这些反应的位点选择性主要受空间因素控制。值得注意的是，与使用 Na2PdCl4 作为催化剂获得的相比，Na2PtCl4 催化的萘芳基化以相反的位点选择性进行。初步机理研究为涉及限速 CC 键形成还原消除的 Pt(II)/Pt(IV) 催化循环提供了证据。

  DOI：

  10.1021/ja408112j

文献信息

• A base-free, one-pot diazotization/cross-coupling of anilines with arylboronic acids
  作者：Fanyang Mo、Di Qiu、Yubo Jiang、Yan Zhang、Jianbo Wang

  DOI：10.1016/j.tetlet.2010.11.099

  日期：2011.1

  Pd-catalyzed one-pot diazotization/cross-coupling is realized for the synthesis of biaryls directly from anilines and arylboronic acids.

  实现了钯催化的一锅重氮化/交叉偶联，可直接从苯胺和芳基硼酸合成联芳基。
• Iridium-Promoted, Palladium-Catalyzed Direct Arylation of Unactivated Arenes
  作者：Landon J. Durak、Jared C. Lewis

  DOI：10.1021/om401221v

  日期：2014.2.10

  Examining the scope of this reaction led to the discovery that Cp*(PMe3)IrMeCl activates C–H bonds on arene substrates that undergo subsequent Pd-catalyzed cross-coupling with aryl iodides. This Ir-promoted, Pd-catalyzed direct arylation is notable for its distal selectivity on substituted arenes lacking directing groups or a particular electronic bias.

  甲Pd催化*（PME的Cp之间的交叉耦合反应3）IrBn 2和芳基卤化物的开发。检查该反应导致发现的范围内，的Cp *（PME 3上进行随后的Pd催化的与芳基碘化物交叉耦合芳烃底物）IrMeCl激活C-H键。这种Ir促进的，Pd催化的直接芳基化因其对缺少导向基团或特定电子偏压的取代芳烃的远侧选择性而著称。
• Visible-Light-Promoted, Catalyst-Free Gomberg–Bachmann Reaction: Synthesis of Biaryls
  作者：Juyoung Lee、Boseok Hong、Anna Lee

  DOI：10.1021/acs.joc.9b00557

  日期：2019.7.19

  Biaryls were synthesized via a novel visible-light-promoted Gomberg–Bachmann reaction that does not require a photosensitizer or any metal reagents. The formation of an electron donor–acceptor complex between aryl diazonium salts and pyridine allows, under visible-light irradiation, the synthesis of biaryls in moderate-to-high yields.

  联芳基是通过不需要光敏剂或任何金属试剂的新型可见光促进的Gomberg-Bachmann反应合成的。在芳基重氮盐和吡啶之间形成电子供体-受体配合物，可以在可见光照射下以中等至高收率合成联芳基。
• Nickel or Iron Catalysed Carbon-Carbon Coupling Reaction of Arylenes, Alkenes and Alkines
  申请人：knochel Paul

  公开号：US20100184977A1

  公开（公告）日：2010-07-22

  Organozinc compounds of the type R 1 —Ar 1 —ZnY (1) can be reacted with different functionalized aryl halides R 2 —Ar 2 —X (2) in the presence of catalytic amounts of Ni or Fe in a polar solvent or solvent mixture to form polyfunctional biaryles of the type R 1 —Ar 1 —Ar 2 —R 2 (3). Organozinc compounds of the type (1) can be represented by the transmetallation reaction of functionalized aryl magnesium halides or lithium aryl compounds with e.g. ZnBr 2 .

  类型为R1—Ar1—ZnY（1）的有机锌化合物可以在极性溶剂或溶剂混合物中存在催化剂量的Ni或Fe的情况下与不同官能化芳基卤化物R2—Ar2—X（2）反应，形成类型为R1—Ar1—Ar2—R2（3）的多官能团联苯。类型为（1）的有机锌化合物可以通过官能化芳基镁卤化物或锂芳基化合物与例如ZnBr2的转金属化反应来表示。
• 2,3-Dihydro-6-Nitroimidazo (2,1-b) Oxazole Compounds for the Treatment of Tuberculosis
  申请人：Tsubouchi Hidetsugu

  公开号：US20080119478A1

  公开（公告）日：2008-05-22

  The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: (1) in the above formula (1), R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R1 and —(CH2) n R2 may form a spiro ring represented by the formula (30) below, together with the adjacent carbon atom (in the formula below, RRR represents a piperidyl group which may have substituents on the piperidine ring), (30) and R2 represents a benzothiazolyloxy group, quinolyloxy group, pyridyloxy group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis , multi-drug-resistant Mycobacterium tuberculosis , and atypical acid-fast bacteria.

  本发明提供了一种由下述通式（1）表示的2,3-二氢-6-硝基咪唑[2,1-b]噁唑化合物： 在上述式（1）中，R1代表氢原子或C1-C6烷基，n代表0到6的整数，R1和—(CH2)nR2可以与相邻的碳原子形成如下式（30）所示的螺环，其中，在下式中，RRR代表可能在哌啶环上具有取代基的哌啶基： （30）且R2代表苯并噻唑氧基、喹啉氧基、吡啶氧基或类似基团。该化合物对结核分枝杆菌、多重耐药结核分枝杆菌和非典型酸杆菌具有优异的杀菌作用。