3-isopropyl-1H-indene | 40237-78-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚和异茚
• 英文名称: 3-isopropyl-1H-indene
• 英文别名: 3-isopropylindene；3-isopropyl-indene；3-Isopropyl-inden；3-Isopropylinden；3-propan-2-yl-1H-indene
• CAS: 40237-78-3
• 化学式: C₁₂H₁₄
• 分子量: 158.243
• InChiKey: AJJLICXCCRYGKN-UHFFFAOYSA-N

物化性质

• 沸点：
  230 °C
• 密度：
  0.977±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  3-isopropyl-1H-indene 在 ruthenium trichloride 、 sodium periodate 、 硫酸 作用下， 以 正己烷 、 水 、 乙腈 为溶剂， 反应 13.0h， 生成 ethyl (2-(2-methylethyl)phenyl)acetate
  参考文献：
  名称：

  一种新型串联[2 + 2]环加成-迪克曼缩合反应，并含有山酸根阴离子。通过正式的[n + 1]环加成反应可高效合成取代的环烯酮和萘。

  摘要：

  描述了一种新颖的串联双[2 + 2]环加成反应-狄克曼经由via酸根阴离子的缩合反应。矢酸根阴离子可通过不涉及相应的β-内酯烯醇化的途径用于反应性β-内酯烯醇酸酯的形成。用δ-或γ-酮酸酯将[2 + 2]环酸酯阴离子进行环加成反应，然后进行Dieckmann缩合反应，生成双环β-内酯，该二环β-内酯易于脱羧生成一个合成有用的2,3-二取代的环戊烯酮和环己烯酮。该串联反应应用于高度取代的萘的新型一锅合成。

  DOI：

  10.1021/jo015929w
• 作为产物：
  描述：

  chroman-2-ol 在 吡啶 、 四(三苯基膦)钯 、 三乙胺 、 lithium chloride 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 34.0h， 生成 3-isopropyl-1H-indene
  参考文献：
  名称：

  钯和乙烯基和芳基三氟甲磺酸酯的分子内环化反应。β-氢化物消除步骤的相关区域选择性。

  摘要：

  已经研究了Pd（0）催化的乙烯基和芳基三氟甲磺酸酯的分子内烯化反应，以便在至少有两种选择的情况下获得对动力学上优选的还原消除的认识。在任一系列中，发现未活化的烯烃参加者最容易转化成非共轭环化产物。尽管在闭环过程中要使用反应性较低的芳基三氟甲磺酸酯所需的条件更强，但仍可看到这种趋势。另一方面，当侧链由α-丙烯酸甲酯单元终止时，在动力学上优选共轭二烯。这两个反应似乎在能量上紧密平衡，因为产品分布并没有很大的不同。不过，

  DOI：

  10.3891/acta.chem.scand.46-0597

文献信息

• EtAlCl₂/2,6-Disubstituted Pyridine-Mediated Carboxylation of Alkenes with Carbon Dioxide
  作者：Shinya Tanaka、Kota Watanabe、Yuuki Tanaka、Tetsutaro Hattori

  DOI：10.1021/acs.orglett.6b00918

  日期：2016.6.3

  and trialkyl-substituted alkenes undergo carboxylation with CO2 in the presence of EtAlCl2 and 2,6-dibromopyridine to afford the corresponding α,β- and/or β,γ-unsaturated carboxylic acids. This reaction is suggested to proceed via the electrophilic substitution of EtAlCl2 with the aid of the base, followed by the carbonation of the resulting ate complex. This reaction can be applied to terminal dialkylalkenes

  在EtAlCl 2和2,6-二溴吡啶的存在下，α-芳基烯烃和三烷基取代的烯烃与CO 2进行羧化反应，得到相应的α，β-和/或β，γ-不饱和羧酸。建议该反应通过在碱的辅助下对EtAlCl 2进行亲电取代，然后将所得的盐配合物碳酸化来进行。通过使用2，6-二叔丁基吡啶和2，6-二溴吡啶的混合物，该反应可用于末端二烷基烯烃。
• Remote, Diastereoselective Cobalt-Catalyzed Alkene Isomerization–Hydroboration: Access to Stereodefined 1,3-Difunctionalized Indanes
  作者：Nadia G. Léonard、W. Neil Palmer、Max R. Friedfeld、Máté J. Bezdek、Paul J. Chirik

  DOI：10.1021/acscatal.9b03444

  日期：2019.10.4

  The remote, diastereoselective hydroboration of 2- and 3-substituted indenes with a 2,2′:6′,2″-terpyridine cobalt alkyl precatalyst is described that maintains high regio- and stereoselectivity independent of the starting position of the alkene. Several 1,2- and 1,3-disubstituted indanyl boronate esters were obtained with exclusive (>20:1 dr) selectivity for the trans diastereomer including synthetically

  描述了用2,2'：6'，2''-叔吡啶钴烷基烷基催化剂对2-和3-取代的茚进行远程，非对映选择性的硼氢化反应，该反应可保持较高的区域选择性和立体选择性，而与烯烃的起始位置无关。获得了几种1,2-和1,3-二取代的茚满基硼酸酯，对反式非对映异构体具有独特的选择性（> 20：1 dr），包括合成上通用的立体定义的二硼衍生物。假定的氢化钴中间体进行的烯烃异构化先于碳-硼键形成，从而导致观察到的在未取代的C处掺入硼的区域选择性（sp 3）–H苄基位点。如通过甲基取代的茚的三种异构体的氢硼化所证明的，保持了转化的区域选择性和非对映选择性，而与烯烃的起始位置无关。氘标记实验支持快速且可逆的插入和消除β-氢化物以异构化3-甲基茚和1- exo-亚甲基-茚满，说明在产物中观察到的同位素分布。包括化学计量实验，密度泛函理论计算和动力学分析在内的机理研究支持了一种机制，其中2,3-烯烃插入氢化钴中间体中可决定
• Environmental Actinide Science
  作者：Robert J. Silva、Heino Nitsche

  DOI：10.1557/mrs2001.181

  日期：2001.9

  Considerable progress has been made in the study of environmental plutonium science in the last 30-plus years, driven to a large extent by concerns about the release and migration of large amounts of plutonium into the accessible geosphere. Plutonium has been introduced into the environment through several pathways. Environmental contamination has been caused by nuclear-weapons production and testing, nuclear-reactor accidents, and accidents during the transport of nuclear weapons. Above-ground testing of more than 420 nuclear weapons has produced large amounts of radionuclides through fission and neutron activation products. More than three metric tons of plutonium have been distributed on the earth's surface by global fallout. For example, the MAYAK plutonium production complex in the former Soviet Union is located in the southern Urals, about 70 km north of Chelyabinsk and 15 km east of Kyshtym. Between 1949 and 1951, about 76 million m3 of liquid radioactive waste with a total activity of 100 PBq (2.7 MCi) were discharged into the Techa River.

  在过去30多年里，在环境钚科学研究方面取得了相当大的进展，这在很大程度上是由于对大量钚释放和迁移进入可接近的地球圈的担忧驱动的。钚是通过几种途径引入环境的。核武器生产和测试、核反应堆事故以及核武器运输事故导致了环境污染。超过420枚核武器的地面试验产生了大量的放射性核素，包括裂变和中子激活产物。全球超过3吨的钚通过全球性沉降分布在地球表面。例如，前苏联的MAYAK钚生产基地位于乌拉尔山脉南部，距切尔雅宾斯克市北约70公里，东约15公里处的克什蒂姆。1949年至1951年间，约7600万立方米的液体放射性废物，总活度为100 PBq（2.7 MCi），被排放到特恰河中。
• Ethylene-bridged C1-symmetric ansa-(3-R-indenyl)(fluorenyl) zirconocene complexes for propylene dimerization or polymerization: The effect of R group
  作者：Yan Wang、Wenzhong Huang、Haiyan Ma、Jiling Huang

  DOI：10.1016/j.poly.2014.03.019

  日期：2014.7

  A series of ethylene-bridged C-1-symmetric ansa-(3-R-indenyl)(fluorenyl) zirconocene complexes 3a-i (R = 2[2-(4-methylphenyl)propyl], 3a; R = 2-[2-(3,5-dimethylphenyl)propyl], 3h; R = 2-(2-benzylpropyl), 3c; R = 2-methylbenzyl, 3d; R = 2-(2-cyclohexylpropyl), 3e; R = 2-[2-(1-cyclohexenyl)propyl], 3f; R = 2-(2-n-butylpropyl), 3g; R = cyclohexyl, 3h; R = Pr-i, 3i) were synthesized by a salt metathesis method and characterized by NMR spectroscopy, elemental analysis (or HRMS) and X-ray diffraction (3e and 3h). Upon activation with methylaluminoxane, most of these zirconocene complexes exhibited sufficient catalytic activities up to 2.5 x 10(5) g C-6/(mol-Zr.h) and high selectivities up to 99% toward propylene dimerization, affording 2-methyl-1-pentene as the major isomer which was confirmed by gas chromatography. Remarkably, the selectivity and activity of complexes 3a-i were significantly influenced by the structural features of the substituent on the 3-position of indenyl ring: a pendant aryl or alkyl group linked by a quaternary carbon bridge provided the complex with high selectivities in the range of 89.9-99.0% for 2-methyl-1-pentene and low to moderate catalytic activities; the lack of a quaternary carbon bridge within the substituent would lead to mainly polypropylenes of low molecular weight. The steric hindrance around the active metal center induced by the pendant group might be responsible for the catalytic dimerization behavior, and the presumed mechanism was discussed. In addition, for complexes 3h and 3i, the selectivity for propylene dimerization could also be enhanced with the increase of reaction temperature. Noticeably, most of these ansa-zirconocene complexes exhibit excellent thermal stability at 100 degrees C, which is important with regard to industrial application. (C) 2014 Elsevier Ltd. All rights reserved.
• Design of a Versatile and Improved Precatalyst Scaffold for Palladium-Catalyzed Cross-Coupling: (η³-1-^tBu-indenyl)₂(μ-Cl)₂Pd₂
  作者：Patrick R. Melvin、Ainara Nova、David Balcells、Wei Dai、Nilay Hazari、Damian P. Hruszkewycz、Hemali P. Shah、Matthew T. Tudge

  DOI：10.1021/acscatal.5b00878

  日期：2015.6.5

  We describe the development of (eta(3)-1-Bu-t-indenyl)(2)(mu-Cl)(2)Pd-2, a versatile precatalyst scaffold for Pd-catalyzed cross-coupling. Our new system is more active than commercially available (eta(3)-cinnamyl)(2)(mu-Cl)(2)Pd-2 and is compatible with a range of NHC and phosphine ligands. Precatalysts of the type (eta(3)-1-Bu-t-indenyl)Pd(Cl)(L) can either be isolated through the reaction of (eta(3)-1-Bu-t-indenyl)(2)(mu-Cl)(2)Pd-2 with the appropriate ligand or generated in situ, which offers advantages for ligand screening. We show that the (eta(3)-1-Bu-t-indenyl)(2)(mu-Cl)(2)Pd-2 scaffold generates highly active systems for a number of challenging cross-coupling reactions. The reason for the improved catalytic activity of systems generated from the (eta(3)-1-Bu-t-indenyl)(2)(mu-Cl)(2)Pd-2 scaffold compared to (eta(3)-cinnamyl)(2)(mu-Cl)(2)Pd-2 is that inactive Pd-I dimers are not formed during catalysis.