124160-41-4Relevant academic research and scientific papers
Efficient access to alkynylated quinalizinones: Via the gold(i)-catalyzed aminoalkynylation of alkynes
Shinde, Popat S.,Shaikh, Aslam C.,Patil, Nitin T.
, p. 8152 - 8155 (2016)
The gold-catalyzed aminoalkynylation of alkynes for the synthesis of quinalizinones is reported. For instance, the reaction of pyridinoalkynes with 1-[(triisopropylsilyl)-ethynyl]-1,2-benziodoxol-3(1H)-one (TIPS-EBX) in the presence of a catalytic amount
Metal-Free Aminoiodination of Alkynes Under Visible Light Irradiation for the Construction of a Nitrogen-Containing Eight-Membered Ring System
Kanyiva, Kyalo Stephen,Marina, Tane,Nishibe, Shun,Shibata, Takanori
supporting information, p. 2746 - 2751 (2021/04/05)
A method for the synthesis of dihydrodibenzo[c,e]azocine derivatives via a regioselective intramolecular aminoiodination of alkynes under visible light irradiation has been developed. This protocol uses a combination of iodine and hypervalent iodine to re
Enantioselective Synthesis of 1,12-Disubstituted [4]Helicenes
Alcarazo, Manuel,Golz, Christopher,Hartung, Thierry,Machleid, Rafael,Simon, Martin
supporting information, p. 5660 - 5664 (2020/02/28)
A highly enantioselective synthesis of 1,12-disubstituted [4]carbohelicenes is reported. The key step for the developed synthetic route is a Au-catalyzed intramolecular alkyne hydroarylation, which is achieved with good to excellent regio- and enantioselectivity by employing TADDOL-derived (TADDOL=α,α,α,α-tetraaryl-1,3-dioxolane-4,5-dimethanol) α-cationic phosphonites as ancillary ligands. Moreover, an appropriate design of the substrate makes the assembly of [4]helicenes of different substitution patterns possible, thus demonstrating the synthetic utility of the method. The absolute stereochemistry of the newly prepared structures was determined by X-ray crystallography and characterization of their photophysical properties is also reported.
Pyrene derivatives having substituted groups and organic light-emitting diode including the same
-
, (2020/04/21)
The present invention relates to a novel compound and an organic electroluminescent device comprising the same as luminous substances, and more specifically, to a novel compound represented by formula A or formula B and an organic electroluminescent device comprising the same.
Substituted benzimidazoles as modulators of Ras signaling
-
Page/Page column 191-192, (2019/12/25)
Benzimidazole compounds that increase the rate of SOS-mediated nucleotide exchange on Ras by binding to a functionally relevant, chemically tractable pocket on the SOS protein, as part of the Ras:SOS:Ras complex.
Gold-catalyzed cycloisomerization of pyridine-bridged 1,8-diynes: An expedient access to luminescent cycl[3.2.2]azines
Chintawar, Chetan C.,Mane, Manoj V.,Tathe, Akash G.,Biswas, Suprakash,Patil, Nitin T.
supporting information, p. 7109 - 7113 (2019/09/30)
Gold-catalyzed diyne cycloisomerizations involving carbene/alkyne metathesis have been the focal point of attention for the past few years as it offers great potential to build complex polycyclic architectures. However, the design of novel cycloisomerizations has been mostly limited to 1,5/1,6-diynes and has remained very challenging to apply for higher 1,n-diynes. Herein, we disclose an unprecedented cycloisomerization of pyridine-bridged 1,8-diynes involving carbene/alkyne metathesis to access luminescent cycl[3.2.2]azines.
Controlling the Selectivity Patterns of Au-Catalyzed Cyclization-Migration Reactions
Chen, Mo,Su, Naijing,Deng, Tianning,Wink, Donald J.,Zhao, Yingwei,Driver, Tom G.
supporting information, p. 1555 - 1558 (2019/03/20)
As little as 2 mol % of (XPhos)AuNTf2 catalyzes the transformation of a broad range of o-acetylene-substituted styrenes into 1,2-dihydronaphthalenes. Our data suggests that this transformation occurs via a gold-stabilized cyclopropyl carbinyl cation, which triggers either a [1,2] carboxylate shift or a less favorable [1,2] aryl shift. The relative rates of these migrations can be controlled by the identity of the ligand or by stabilizing the mesomeric cation.
New compounds and organic light-emitting diode including the same
-
, (2019/05/25)
PURPOSE: A compound is provided to improve driving voltage and luminous efficiency of an organic electroluminescence device by having excellent light-emitting performance. CONSTITUTION: A compound is represented by chemical formula 1. An organic electroluminescence device comprises an anode, a cathode, and an electroluminescent layer comprising the compound and inserted between the anode and the cathode. The organic electroluminescence device additionally comprises one or more layers selected form a hole injection layer, a hole transport layer, an electro block layer, a hole block layer, an electron transport layer and an electron injection layer. The one or more layers are formed by a monomer deposition method or solution process.
Pyrene derivatives having substituted groups and organic light-emitting diode including the same
-
, (2019/07/25)
The present invention relates to a novel compound and an organic electroluminescent device including the same as luminous substances, and more specifically, to a novel compound represented by formula A or formula B and an organic electroluminescent device
Pyrene derivative compounds and organic light-emitting diode including the same
-
, (2019/08/30)
PURPOSE: A pyrene derivative compound is provided to provide an organic electroluminescence device operable at low voltage and having improved luminous efficiency by having stable and excellent luminous properties. CONSTITUTION: A pyrene derivative compound is represented by chemical formula 1-5. An organic electroluminescence device comprises an anode, a cathode, an electroluminescent layer comprising the compound and inserted between the anode and the cathode. Between the anode and the cathode, one or more layers selected from a hole injection layer, a hole transport layer, an electron block layer, a hole block layer, an electron transport layer and an electron injection layer. The one or more layers are formed by a monomer evaporation method of a solution process.
