37842-67-4

Upstream product

• 501680-77-9 1-biphenyl-2-yl-2-methoxy-ethanone 
• 13139-86-1 4-methoxyphenyl magnesium bromide 
• 53775-11-4 4-(9-phenanthryl)phenol 
• 77-78-1 dimethyl sulfate 
• 31462-49-4 (9-p-Methoxyphenyl-9-fluorenyl)acetaldehyd 
• 874465-76-6 1-bromo-2-(2-(4-methoxyphenyl)-2-phenylethyl)benzene 
• 696-62-8 para-iodoanisole 
• 60252-99-5 4-(9-chloro-fluoren-9-yl)-anisole 
• 85-01-8 phenanthrene 
• 877-68-9 4-trimethylsilylanisole 
• 615-36-1 2-bromoaniline 
• 98-80-6 phenylboronic acid 
• 318-13-8 [1,1'-biphenyl]-2-diazonium tetrafluoroborate 
• 768-60-5 4-methoxyphenylacetylen 

Downstream Products

• 53775-11-4 4-(9-phenanthryl)phenol 

Relevant academic research and scientific papers

Cu(II)-Catalyzed 6π-Photocyclization of Dienynes

The first 6π-photocyclization of dienynes was developed, which provides a new and effective protocol for the synthesis of the phenyl ring in excellent yields with nice functional group tolerance. In this transformation, the Cu(OTf)2 catalyst pl

Neodymium-catalyzed intramolecular alkyne-hydroarylation with arenes

A Nd(OTf)3-catalyzed alkyne-hydroarylation with arenes is reported. This reaction shows a wide range of functional group tolerance. Such a catalytic methodology enriches lanthanide element chemistry and provides a new route for synthesizing phe

Fluorescence of a chiral pentaphene derivative derived from the hexabenzocoronene Motif

A new fluorescent pentaphene derivative is presented that differs from hexabenzocoronene (HBC) by one carbon atom in the basal plane skeleton. A 500% increased fluorescence quantum yield is measured compared to the HBC derivative. The pentaphene compound,

Cobalt?NHC Catalyzed C(sp2)?C(sp3) and C(sp2)?C(sp2) Kumada Cross-Coupling of Aryl Tosylates with Alkyl and Aryl Grignard Reagents

The first cobalt-catalyzed cross-coupling of aryl tosylates with alkyl and aryl Grignard reagents is reported. The catalytic system uses CoF3 and NHCs (NHC=N-heterocyclic carbene) as ancillary ligands. The reaction proceeds via highly selective C?O bond functionalization, leading to the corresponding products in up to 98 % yield. The employment of alkyl Grignard reagents allows to achieve a rare C(sp2)?C(sp3) cross-coupling of C?O electrophiles, circumventing isomerization and β-hydride elimination problems. The use of aryl Grignards leads to the formation of biaryls. The C?O cross-coupling sets the stage for a sequential cross-coupling by exploiting the orthogonal selectivity of the catalytic system.

Nickel(II)/N-Heterocyclic Carbene Catalyzed Desulfinylative Arylation by C?S Cleavage of Aryl Sulfoxides with Phenylboronic Acids

Suzuki-Miyaura coupling of haloarenes is the most widely used protocol for the synthesis of biphenyls. Organosulfur compounds are promising electrophiles since they are abundant in nature and versatile in organic synthesis. We report here the desulfinylative Suzuki-Miyaura coupling of aryl sulfoxides with phenylboronic acids using bench-stable nickel/5-(2,4,6-triisopropylphenyl)imidazolylidene[1,5-a]pyridines as the catalyst. The ligands are readily prepared from common commercial chemicals. The method is applicable to both symmetric and unsymmetric aryl sulfoxides, and a range of biphenyls bearing various functional groups were obtained in up to 94% yield. (Figure presented.).

NOVEL COMPOUND FOR ORGANIC LIGHT EMITTING DIODE AND COATING COMPOSITION FOR ORGANIC LAYER COMPRISING THE SAME

The present invention relates to a compound represented by chemical formula 1 and a coating solution composition including the same. More specifically, the coating solution composition for an organic film material enables a solution process and realizes d

Br?nsted Acid-Catalyzed Carbocyclization of 2-Alkynyl Biaryls

Ortho-alkynyl biaryls react in the presence of catalytic amount of Br?nsted acids to give phenanthrenes in high yields under mild conditions. The activity and selectivity of this transformation are governed by the substitution pattern of the diarylalkyne moiety. Selectivity shifts are observed between the carbophilic Lewis and Br?nsted acid-catalyzed cycloisomerization involving alkyne activation. (Figure presented.).

Br?nsted acid-catalysed hydroarylation of unactivated alkynes in a fluoroalcohol-hydrocarbon biphasic system: Construction of phenanthrene frameworks

Transition metal-free hydroarylation of unactivated alkynes was achieved by combining a Br?nsted acid catalyst and a two-phase solvent system consisting of 1,1,1,3,3,3-hexafluoropropan-2-ol (HFIP) and cyclohexane. This protocol is applicable to a wide variety of 2-alkynylbiaryls which leads to the synthesis of substituted phenanthrenes via 6-endo-selective ring closure. The biphasic system achieves highly efficient ring closure by appropriate separation of cationic intermediates from neutral compounds. The vinyl carbocation intermediates are stabilised in the HFIP phase, while the substrates and products are distributed in the cyclohexane phase to suppress intermolecular side reactions.

HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME

The present invention relates to a novel heterocyclic compound, capable of improving efficiency, low driving voltage and/or lifespan characteristics in an organic light emitting device, and to an organic light emitting device using the same. The novel heterocyclic compound of the present invention is represented by the chemical formula 1. In the chemical formula 1, R_1 and R_2 are each independently a substituted or unsubstituted C_(1-60) alkyl group, or a substituted or unsubstituted C_(6-60) aryl group, or are bound to each other to form a C_(6-60) aromatic ring.COPYRIGHT KIPO 2019

Oxidative, Iodoarene-Catalyzed Intramolecular Alkene Arylation for the Synthesis of Polycyclic Aromatic Hydrocarbons

A catalytic, metal-free and chemoselective oxidative intramolecular coupling of arene and alkene C?H bonds is reported. The active hypervalent iodine (HVI) reagent, generated catalytically in situ from iodotoluene and meta-chloroperoxybenzoic acid (m-CPBA), reacts with o-vinylbiphenyls to generate polyaromatic hydrocarbons in up to 95 % yield. Experimental evidence suggests the reactions proceed though vinyliodonium and, possibly, vinylenephenonium intermediates.