1-(2,6-diisopropylphenyl)-2-methyl imidazole | 1448750-42-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-(2,6-diisopropylphenyl)-2-methyl imidazole
• 英文别名: 1-[2,6-Di(propan-2-yl)phenyl]-2-methylimidazole
• CAS: 1448750-42-2
• 化学式: C₁₆H₂₂N₂
• 分子量: 242.364
• InChiKey: BQHHXXDQOSFSOA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-(2,6-diisopropylphenyl)-2-methyl imidazole 在 potassium hydride 作用下， 以 四氢呋喃 、 乙腈 为溶剂， -78.0~40.0 ℃ 、101.33 kPa 条件下， 反应 52.0h， 生成 2-[1-[2,6-Di(propan-2-yl)phenyl]-3-methylimidazol-3-ium-2-yl]acetate
  参考文献：
  名称：

  Fast CO₂ Sequestration, Activation, and Catalytic Transformation Using N-Heterocyclic Olefins

  摘要：

  N-Heterocyclic Olefin (NHO) with high electronegativity at the terminal carbon atom was found to show a strong tendency for CO2 sequestration, affording a CO2 adduct (NHO-CO2). X-ray single crystal analysis revealed the bent geometry of the binding CO2 in the NHO-CO2 adducts with an O-C-O angle of 127.7-129.9 degrees, dependent on the substitute groups of N-heterocyclic ring. The length of the C-carboxylate-C-NHO bond is in the range of 1.55-1.57 angstrom, significantly longer than that of the C-carboxylate-C-NHC bond (1.52-1.53 angstrom) of the previously reported NHC-CO2 adducts. The FTIR study by monitoring the v(CO2) region of transmittance change demonstrated that the decarboxylation of NHO-CO2 adducts is easier than that of the corresponding NHC-CO2 adducts. Notably, the NHO-CO2 adducts were found to be highly active in catalyzing the carboxylative cyclization of CO2 and propargylic alcohols at mild conditions (even at ambient temperature and 0.1 MPa CO2 pressure), selectively giving alpha-alkylidene cyclic carbonates in good yields. The catalytic activity is about 10-200 times that of the corresponding NHC-CO2 adducts at the same conditions. Two reaction paths regarding the hydrogen at the alkenyl position of cyclic carbonates coming from substrate (path A) or both substrate and catalyst (path B) were proposed on the basis of deuterium labeling experiments. The high activity of NHO-CO2 adduct was tentatively ascribed to its low stability for easily releasing the CO2 moiety and/or the desired product, a possible rate-limiting step in the catalytic cycle.

  DOI：

  10.1021/ja405114e
• 作为产物：
  描述：

  1-(2,6-二异丙基苯基)-1H-咪唑 、 碘甲烷 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 1.17h， 生成 1-(2,6-diisopropylphenyl)-2-methyl imidazole
  参考文献：
  名称：

  Fast CO₂ Sequestration, Activation, and Catalytic Transformation Using N-Heterocyclic Olefins

  摘要：

  N-Heterocyclic Olefin (NHO) with high electronegativity at the terminal carbon atom was found to show a strong tendency for CO2 sequestration, affording a CO2 adduct (NHO-CO2). X-ray single crystal analysis revealed the bent geometry of the binding CO2 in the NHO-CO2 adducts with an O-C-O angle of 127.7-129.9 degrees, dependent on the substitute groups of N-heterocyclic ring. The length of the C-carboxylate-C-NHO bond is in the range of 1.55-1.57 angstrom, significantly longer than that of the C-carboxylate-C-NHC bond (1.52-1.53 angstrom) of the previously reported NHC-CO2 adducts. The FTIR study by monitoring the v(CO2) region of transmittance change demonstrated that the decarboxylation of NHO-CO2 adducts is easier than that of the corresponding NHC-CO2 adducts. Notably, the NHO-CO2 adducts were found to be highly active in catalyzing the carboxylative cyclization of CO2 and propargylic alcohols at mild conditions (even at ambient temperature and 0.1 MPa CO2 pressure), selectively giving alpha-alkylidene cyclic carbonates in good yields. The catalytic activity is about 10-200 times that of the corresponding NHC-CO2 adducts at the same conditions. Two reaction paths regarding the hydrogen at the alkenyl position of cyclic carbonates coming from substrate (path A) or both substrate and catalyst (path B) were proposed on the basis of deuterium labeling experiments. The high activity of NHO-CO2 adduct was tentatively ascribed to its low stability for easily releasing the CO2 moiety and/or the desired product, a possible rate-limiting step in the catalytic cycle.

  DOI：

  10.1021/ja405114e

文献信息

• ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
  申请人：Universal Display Corporation

  公开号：US20210300956A1

  公开（公告）日：2021-09-30

  Provided are organoiridium compounds that are useful as emitters in OLEDs. The compounds have Formula I L 1 L 2 Ir-L-IrL 3 L 4 where: L is a bis-bidentate ligand including two or more aromatic rings; one of the two or more aromatic rings is bonded to the two Ir atoms at the same time; and each of L 1 , L 2 , L 3 , and L 4 is independently a bidentate N-heterocyclic carbene ligand or a substituted or unsubstituted acetylacetonate ligand with L 1 , L 2 , L 3 , and L 4 each being the same or different. Also provided are formulations including these organoiridium compounds. Further provided are OLEDs and related consumer products that utilize these organoiridium compounds.

  提供了作为OLED中发射体有用的有机铱化合物。这些化合物具有Formula I L1L2Ir-L-IrL3L4，其中：L是一个包括两个或更多芳香环的双双齿配体；两个或更多芳香环中的一个同时与两个铱原子结合；而且L1、L2、L3和L4中的每一个都是独立的双齿N-杂环卡宾配体或取代或未取代的乙酰丙酮酸盐配体，其中L1、L2、L3和L4中的每一个可以相同也可以不同。还提供了包括这些有机铱化合物的配方。此外还提供了利用这些有机铱化合物的OLED和相关消费品。
• HOST MATERIALS FOR ELECTROLUMINESCENT DEVICES
  申请人：Universal Display Corporation

  公开号：US20200190103A1

  公开（公告）日：2020-06-18

  A compound of Formula I wherein X 1 and X 2 are independently CR X or N, and at least one of X 1 or X 2 is CR X ; Y is selected from the group consisting of O, S, Se, NR′, BR′, CR′R″, and SiR′R″; R′, and R″ are each independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof; R is selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; R A , and R C each independently represent mono to the maximum allowable substitution, or no substitution; and each R X , R A , and R C is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof, and wherein any two substituents R X , R A , and R C may be optionally joined to form a ring, with the proviso that R does not join with R A to form a ring.

  公式I的化合物，其中X1和X2分别独立地为CRX或N，且X1或X2中至少有一个为CRX；Y选自O、S、Se、NR′、BR′、CR′R″和SiR′R″组成的群；R′和R″各自独立地选自烷基、环烷基、杂原子烷基、杂原子环烷基、芳基、杂芳基及其组合物的群；R选自氘、卤素、烷基、环烷基、杂原子烷基、杂原子环烷基、芳基烷基、烷氧基、芳氧基、氨基、硅基、烯基、环烯基、杂原子烯基、炔基、芳基、杂芳基、酰基、羧酸基、醚、酯、腈、异腈、硫基、亚硫基、砜基、膦基及其组合物的群；RA和RC各自独立地表示单取代至最大允许取代，或无取代；每个RX、RA和RC独立地为氢或选自氘、卤素、烷基、环烷基、杂原子烷基、杂原子环烷基、芳基烷基、烷氧基、芳氧基、氨基、硅基、烯基、环烯基、杂原子烯基、炔基、芳基、杂芳基、酰基、羧酸基、醚、酯、腈、异腈、硫基、亚硫基、砜基、膦基及其组合物的取代基，且任意两个取代基RX、RA和RC可选择性地结合形成环，但R不与RA结合形成环。
• US9972793B2
  申请人：——

  公开号：US9972793B2

  公开（公告）日：2018-05-15