1,3-di(p-tolyl)benzene | 19399-68-9

• 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: 1,3-di(p-tolyl)benzene
• 英文别名: 4,4''-dimethyl-1,1':3',1''-terphenyl；1,3-di(4-methylphenyl)benzene；1,3-bis(4-methylphenyl)benzene
• CAS: 19399-68-9
• 化学式: C₂₀H₁₈
• 分子量: 258.363
• InChiKey: IJSRIMSZPSHKCB-UHFFFAOYSA-N

物化性质

• 熔点：
  114 °C
• 沸点：
  402.8±25.0 °C(Predicted)
• 密度：
  1.022±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.7
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1,3-di(p-tolyl)benzene 在 氢氧化钾 、 N-溴代丁二酰亚胺(NBS) 、 过氧化氢苯甲酰 作用下， 以 四氢呋喃 、 四氯化碳 、 乙醇 、 苯 为溶剂， 反应 64.0h， 生成 12,40-Dioxa-18,34-dithianonacyclo[40.2.2.27,10.213,16.220,23.229,32.236,39.12,6.124,28]octapentaconta-1(44),2(58),3,5,7(57),8,10(56),13(55),14,16(54),20(53),21,23(52),24,26,28(51),29,31,36,38,42,45,47,49-tetracosaene
  参考文献：
  名称：

  Synthesis of Cyclophanes with Intra-Annular Functionality and Cage Structure

  摘要：

  Cyclophanes of the type 1 and 2, with large cavity sizes, have been synthesized from the corresponding dichloride 8 or 8a and o-xylene-alpha,alpha'-dithiol (9), p-xylene-alpha,alpha'-dithiol (10), or m-terphenyldithiol (11). Similarly, cyclophanes of the type 3 with intra-annular functionality have been obtained by the coupling of the corresponding dithiol 15 or 19 and m-terphenyl dibromide 5, 5a, 5b, or 5c. With the aim of introducing multifunctionality, cyclophanes of the type 21 and 23 were prepared from 3,5-bis(mercaptomethyl)anisole or 3,5-bis(mercaptomethyl)phenol and the corresponding substituted m-terphenyl dibromide Bb or 5c. Cyclophanes 24, 24a, 24b, and 32, with a new type of cage structure, have been obtained by the coupling of the corresponding tetrathiol as with 2 equiv of the dibromides 5c, 5a, and 5b or 1 equiv of the tetrabromide 31, respectively. Further, the sodium salts of the cyclophanes 3c, 21, and 24b were completely characterized by H-1 NMR spectroscopy. XRD analysis of the cyclophane 21 revealed the presence of an ethanol molecule inside the cavity, indicating the facile formation of a host-guest complex.

  DOI：

  10.1021/jo950957y
• 作为产物：
  描述：

  1,5-di-p-tolylpenta-1,4-diyn-3-ol 、 乙酰丙酮 在 三氟甲磺酸 作用下， 以 氯苯 为溶剂， 以91%的产率得到1,3-di(p-tolyl)benzene
  参考文献：
  名称：

  TfOH催化双炔丙基醇与1,3-二羰基化合物的反应

  摘要：

  摘要 已开发出一种无过渡金属的高效方法，该方法可从双炔丙基醇和1,3-二羰基化合物制备1,2,3-三取代苯。双炔丙醇与1,3-二羰基化合物的反应通过[3,3]重排，6π电环化和意外的Csp 3 -Csp 2区域选择性σ键裂解过程进行。 已开发出一种无过渡金属的高效方法，该方法可从双炔丙基醇和1,3-二羰基化合物制备1,2,3-三取代苯。双炔丙醇与1,3-二羰基化合物的反应通过[3,3]重排，6π电环化和意外的Csp 3 -Csp 2区域选择性σ键裂解过程进行。

  DOI：

  10.1055/s-0035-1560372

文献信息

• Substituent-dependent structures and catalysis of benzimidazole-tethered N-heterocyclic carbene complexes of Ag(i), Ni(ii) and Pd(ii)
  作者：Fuwei Li、Jian Jin Hu、Lip Lin Koh、T. S. Andy Hor

  DOI：10.1039/c000722f

  日期：——

  Homoleptic cationic benzimidazole-imidazolin-2-ylidene N-heterocyclic carbene (NHC = L) complexes of NiII and PdII have been prepared directly from the ligand precursor in salt form [H.L]Cl and from the transmetallation route via AgI. The N-tether of the imidazolinylidene ring imposes a significant influence on the nuclearity of the intermediate Ag(I)-NHC complexes and the geometric isomer outcome of the d8 products. Use of a benzyl-substituted NHC gives [Ag4(LBn)2Cl4], 2a (from [HLBn]Cl, 1a, and Ag2O) (Bn = benzyl), which shows an alignment of four silver atoms bridged by the difunctional C–N ligands and chlorides. Its transmetallation with NiCl2(PPh3)4 and PdCl2(MeCN)2 results in double-metal salts 2[M(LBn)2]2+[Ag4Cl8]4− (M = Ni (3a) and Pd (4a)). The nuclearity of the Ag4 aggregate is maintained in the transmetallation process. Their Ag-free forms [M(LBn)2]Cl2 (M = Ni (5) and Pd (6)) were prepared by direct deprotonation of 1a with M(OAc)2. The two carbenic carbon donor are cis- to each other in both 3a and 4a, thus imposing the weaker σ-benzimidazole nitrogen donor to be trans to them. A sterically demanding mesityl pendant however gives the dinuclear dissymmetic [Ag2(LMes)2Cl2], 2b (Mes = mesityl) that shows a 12-membered metallomacrocyclic ring with a 2-coordinated [AgI(NHC)2] and 4-coordinated [AgI(Imd)2Cl2] (Imd = imidazole). Transmetallation of the latter, or direct metallation from [HLMes]Cl, 1b, gives [M(LMes)2]Cl2 (M = Ni (3b) and Pd (4b)) with the two carbonic carbon trans to each other. The catalytic potential of 3b and 4b, which are more effective than 5 and 6, has been demonstrated by their high activities in Ni-catalyzed Kumada at room temperature and Pd-catalyzed Heck couplings of aryl and/or heteroaryl halides, respectively.

  均配正离子苯并咪唑-咪唑啉亚基N-杂环卡宾（NHC = L）NiII和PdII配合物可以通过盐形式的配体前驱体[H.L]Cl以及通过AgI的转金属路线来直接制备。咪唑啉亚基环的N-连接对中间体Ag(I)-NHC配合物的核数和d8产物的几何异构体结果产生了显著影响。使用苯甲基取代的NHC得到[Ag4(LBn)2Cl4]，2a（由[HLBn]Cl，1a，和Ag2O制备）（Bn = 苯甲基），显示出四个银原子通过双功能的C-N配体和氯化物桥接的对齐。其与NiCl2(PPh3)4和PdCl2(MeCN)2的转金属反应得到了双金属盐2[M(LBn)2]2+[Ag4Cl8]4-（M = Ni (3a) 和 Pd (4a)）。Ag4聚集体的核数在转金属过程中得以保持。它们的Ag-free形式[M(LBn)2]Cl2（M = Ni (5) 和 Pd (6)）是通过1a与M(OAc)2的直接去质子化制备的。两个卡宾碳供体在3a和4a中都是cis相对的，因此使较弱的σ-苯并咪唑氮供体与其相对。然而，空间位阻较大的甲基苯基悬挂物给出了二核不对称的[Ag2(LMes)2Cl2]，2b（Mes = 甲基苯基），显示出具有2配位的[AgI(NHC)2]和4配位的[AgI(Imd)2Cl2]（Imd = 咪唑）的12元金属大环。后者的转金属反应，或直接从[HLMes]Cl，1b，金属化得到了[M(LMes)2]Cl2（M = Ni (3b) 和 Pd (4b)），其中两个碳碳彼此相对。3b和4b的催化潜力，它们比5和6更有效，已经通过它们在室温下Ni催化的Kumada和Pd催化的芳基和/或杂芳基卤化物的Heck偶联反应中的高活性得到了证明。
• Palladium (II)–Salan Complexes as Catalysts for Suzuki–Miyaura C–C Cross-Coupling in Water and Air. Effect of the Various Bridging Units within the Diamine Moieties on the Catalytic Performance
  作者：Szilvia Bunda、Krisztina Voronova、Ágnes Kathó、Antal Udvardy、Ferenc Joó

  DOI：10.3390/molecules25173993

  日期：——

  salan ligands were synthesized by hydrogenation and subsequent sulfonation of salens (N,N’-bis(slicylidene)ethylenediamine and analogues) with various bridging units (linkers) connecting the nitrogen atoms. Pd (II) complexes were obtained in reactions of sulfosalans and [PdCl4]2−. Characterization of the ligands and complexes included extensive X-ray diffraction studies, too. The Pd (II) complexes proved

  水溶性的 salan 配体是通过对具有连接氮原子的各种桥接单元（接头）的 salens（N，N'-双（亚硅基）乙二胺和类似物）进行氢化和随后的磺化来合成的。Pd (II) 配合物是在硫柳胺和 [PdCl4]2- 的反应中获得的。配体和配合物的表征也包括广泛的 X 射线衍射研究。Pd (II) 配合物被证明是芳基卤化物和芳基硼​​酸衍生物在 80°C 下在水和空气中的 Suzuki-Miyaura 反应的高活性催化剂。对 Pd (II)-磺胺嘧啶催化剂的比较研究表明，催化活性随着接头长度的增加和配体 N 供体原子周围空间拥挤度的增加而大大增加；最高比活为40,000（mol底物）（mol催化剂×h）-1。
• Room-Temperature Kumada Cross-Coupling of Unactivated Aryl Chlorides Catalyzed by <i>N</i>-Heterocylic Carbene-Based Nickel(II) Complexes
  作者：Zhenxing Xi、Bin Liu、Wanzhi Chen

  DOI：10.1021/jo800197u

  日期：2008.5.1

  The Kumada cross-coupling reaction of a variety of unactivated aryl chlorides, vinyl chlorides, and heteroaryl chlorides catalyzed by nickel(II) complexes containing pyridine-functionalized NHC ligands is described. The catalysts are so active that the reactions proceed at room temperature in excellent yields.

  描述了由含有吡啶官能化的NHC配体的镍（II）配合物催化的各种未活化的芳基氯，氯乙烯和杂芳基氯的熊田交叉偶联反应。催化剂是如此活泼，以至于反应在室温下以优异的产率进行。
• Trinuclear copper(I) complex of 1,3-bis(2-pyridinylmethyl)imidazolylidene as a carbene-transfer reagent for the preparation of catalytically active nickel(II) and palladium(II) complexes
  作者：Chao Chen、Huayu Qiu、Wanzhi Chen

  DOI：10.1016/j.jorganchem.2011.09.008

  日期：2012.1

  each Cu–Cu bond capped by an imidazolylidene group. Each imidazolylidene acts as a bridging ligand in a μ2 mode and is bonded equally to two Cu(I) ions. The pincer nickel and palladium complexes are square-planar and contain a tridentate NCN ligand. Complexes 3 and 4 are efficient catalyst precursors for Kumada–Corriu and Suzuki–Miyaura coupling reactions of aryl halides with organometallic reagents

  1,3-双（吡啶-2-基甲基）-1H-咪唑-3-六氟磷酸盐（[HL1]（PF 6），L1 = 1,3-双（吡啶-2-基甲基）咪唑基亚烷基）的反应1,3-双（吡啶-2-基甲基）-1H-苯并咪唑-3-六氟磷酸盐（[HL2]（PF 6），L2 = 1,3-双（吡啶-2-基甲基）苯并咪唑基亚苄基）乙腈容易产生三核络合物[Cu 3（L1）3（PF 6）3 ]（1）和[Cu 3（L2）3（PF 6）3 ]（2）。Ni（PPh 3）2 Cl 2处理1由于过金属化作用，Pd（cod）Cl 2和[Pd（cod）Cl 2分别得到[Ni（L1）Cl]（PF 6）（3）和[Pd（L1）Cl]（PF 6）（4）。从[Cu 3（L1）3（PF 6）3 ]和阮内镍在乙腈中的反应获得[Ni（L1）2 ]（PF 6）2（5）。所有这些复合物已被充分表征。既1和2组成的三角形的Cu 3芯与由imidazolylidene基团
• Cobalt(iii) complexes bearing bidentate, tridentate, and tetradentate N-heterocyclic carbenes: synthesis, X-ray structures and catalytic activities
  作者：Zhenxing Xi、Bin Liu、Chunxin Lu、Wanzhi Chen

  DOI：10.1039/b906242d

  日期：——

  [H(2)L3](PF(6))(2)via in situ generated silver carbene complexes under mild conditions. These cobalt complexes were characterized by (1)H and (13)C NMR spectroscopy and X-ray diffraction analysis. The cobalt complexes have been found to be good catalyst precursors for Kumada-Corriu cross-coupling reactions of aryl halides and Grignard reagents at room temperature. Complex 1 is more active under the mild

  钴（iii）配合物，[CoCl（2）（L1）（2）] [PF（6））（1，L1 = N-甲基-N-（2-嘧啶基）咪唑基亚烷基），[CoCl（L2）（2 ）]（PF（6））（2）（，L2 = N-吡啶甲基-（2-嘧啶基）咪唑基亚烷基），[Co（L3）（2）]（PF（6））（3）（3，L3 =从相应的嘧啶官能化的咪唑鎓盐[HL1]（PF（6）），[ HL2]（PF（6））和[H（2）L3]（PF（6））（2）通过在温和条件下原位生成卡宾银配合物。这些钴配合物通过（1）H和（13）C NMR光谱和X射线衍射分析来表征。已经发现钴配合物是室温下芳基卤化物和格氏试剂的Kumada-Corriu交叉偶联反应的良好催化剂前体。复合物1在温和条件下更具活性。