- 5, 10-dihydroindolo [3, 2-b] indole derivative and synthesis method and application thereof
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The invention discloses a synthesis method of a 5, 10-dihydroindolo [3, 2-b] indole derivative, the method comprises the following steps: mixing a 2-((2-halogen phenyl) ethynyl)-N, N-dimethylaniline derivative (II), N, N-di-tert-butyl diazacycloketone (III), a palladium catalyst, a monophosphine ligand, alkali and a first organic solvent, and carrying out a diamidation reaction under the protection of inert gas to realize the synthesis of the 5, 10-dihydroindolo [3, 2-b] indole derivative(I). The method is easy to operate, mild in reaction condition and high in reaction yield, and the synthesized 5, 10-dihydroindolo [3, 2-b] indole derivative can be used for preparing an organic light-emitting device.
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Paragraph 0081; 0083-0084
(2021/07/17)
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- Facile Synthesis, Triplet-State Properties, and Electrochemistry of Hexaiodo-Subphthalocyanine
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In view of the ever-growing demand for efficient triplet photosensitizers and photoactive components of various optoelectronic devices, we herein report the synthesis and properties of hexaiodo-subphthalocyanines (I6SubPcs). The improved five-s
- Ob?oza, Magdalena,?apok, ?ukasz,Solarski, J?drzej,P?dziński, Tomasz,Nowakowska, Maria
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p. 17080 - 17090
(2018/11/01)
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- CO extrusion in homogeneous gold catalysis: Reactivity of gold acyl species generated through water addition to gold vinylidenes
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Herein, we describe a new gold-catalyzed decarbonylative indene synthesis. Synergistic σ,π-activation of diyne substrates leads to gold vinylidene intermediates, which upon addition of water are transformed into gold acyl species, a type of organogold compound hitherto only scarcely reported. The latter are shown to undergo extrusion of CO, an elementary step completely unknown for homogeneous gold catalysis. By tuning the electronic and steric properties of the starting diyne systems, this new reactivity could be exploited for the synthesis of indene derivatives in high yields.
- Bucher, Janina,St?sser, Tim,Rudolph, Matthias,Rominger, Frank,Hashmi, A. Stephen K.
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supporting information
p. 1666 - 1670
(2015/01/30)
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- 1,1-carboboration route to substituted naphthalenes
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1,2-Bis(alkynyl)benzene derivatives react with strongly electrophilic boranes to yield in boryl-functionalized bulky naphthalene derivatives by means of a sequence of 1,1-carboboration reactions. These substrates can be functionalized by transition metal
- Liedtke, Rene,Harhausen, Marcel,Froehlich, Roland,Kehr, Gerald,Erker, Gerhard
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supporting information; experimental part
p. 1448 - 1451
(2012/06/01)
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- SYSTEM AND METHOD FOR FLUOROALKYLATED FLUOROPHTHALOCYANINES WITH AGGREGATING PROPERTIES AND CATALYTIC DRIVEN PATHWAY FOR OXIDIZING THIOLS
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Organo-metallic materials with reduced steric hindrance and the ability to aggregate are disclosed. The metal remains capable of binding additional molecules. As an example, Zn complexes that prove aggregation are provided. Such aggregation may help impro
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Page/Page column 9
(2012/05/20)
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- Synthesis of hexadehydrotribenzo[a,e,i][12]annulenes by acetylene insertion into an open-chain precursor
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A simple synthesis of a hexadehydrotribenzo[a,e,i][12]annulene by insertion of acetylene into an open-chain diiodo precursor under Sonogashira coupling conditions has been developed and used to prepare a rigid three-armed star connector for testing as a b
- Dudic, Miroslav,Cisarova, Ivana,Michl, Josef
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scheme or table
p. 68 - 74
(2012/03/10)
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- Synthesis of polycyclic aromatics from a diiodosultine by Suzuki-miyaura cross-coupling and Diels-Alder reaction
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A convergent synthesis of polycyclic aromatic compounds by the application of Suzuki-Miyaura cross-coupling and Diels-Alder reaction as key steps is described. The Japan Institute of Heterocyclic Chemistry.
- Kotha, Sambasivarao,Meshram, Milind
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scheme or table
p. 1663 - 1668
(2011/05/05)
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- 5-Exo-dig radical cyclization of enediynes: The first synthesis of tin-substituted benzofulvenes
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(Equation Presented) Bu3Sn-mediated 5-exo-dig radical cyclization of diaryl enediynes provides a mild and efficient approach to tin-substituted fulvenes. Further synthetic opportunities opened by this process and general factors responsible for
- Kovalenko, Serguei V.,Peabody, Scott,Manoharan, Mariappan,Clark, Ronald J.,Alabugin, Igor V.
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p. 2457 - 2460
(2007/10/03)
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- Improved, Acid-catalyzed Iodinating Procedures for Activated Aromatics with (Diacetoxyiodo)benzene as the Oxidant
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Improved procedures for the oxidative, acid-catalyzed iodination of benzene, iodobenzene and several activated aromatics are presented to give mono-, di-, or triiodinated products in 40-82 percent yields. The reactions proceeded at room temperature in the anhydrous systems: arene or hetarene/diiodine/(diacetoxyiodo)benzene (2)/glacial acetic acid/acetic anhydride, acidified with catalytic amounts of concd. (98 percent) H2SO4. Within at most 15 minutes the iodine coloration faded; the following workups are explained. A similar treatment with dibromine gave tribromomesitylene (65 percent), dibromodurene (62 percent), and 2,7-dibromofluoren-9-one (73 percent). A review on the aromatic halogenation reactions with organic trivalent iodine reagents as the oxidants is presented below.
- Kryska, Anna,Skulski, Lech
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p. 2501 - 2517
(2007/10/03)
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- Selective Oxidative Iodination of Aromatic Compounds
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Optimal conditions have been found for oxidative iodination of aromatic compounds in the system KI-H2SO4-HNO3-H2O in the presence of O2, and the kinetics and mechanism of the reaction have been studied. The process involves oxidation of I- to I+ with NO+2 ion, arene iodination with I+, and oxidation of HNO2 to HNO3 with oxygen.
- Dorfman,Aleshkova
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p. 1585 - 1597
(2007/10/03)
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- A SIMPLE METHOD FOR THE IODINATION OF AROMATIC COMPOUNDS
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The iodine - (trifluoroacetoxyiodo)benzene system is effective for the iodination of aromatic compounds, alkylbenzenes, various polynuclear aromatic hydrocarbons, halogenobenzenes, and some heterocyclic compounds.Trifluoroacetyl hypoiodite, which is a source of electrophilic iodine, is probably formed initially.Trifluoroacetyl hypoiodite can be generated in situ from (diacetoxyiodo)benzene and trifluoroacetic acid.
- Merkushev, E. B.,Yudina, N. D.
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p. 2320 - 2322
(2007/10/02)
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