69751-56-0

Upstream product

• 33777-97-8 2-phenyl-5H-indeno[1,2-b]pyridine 
• 132600-05-6 3-Phenyl-9-benzylidene-4-azafluorene 
• 118067-08-6 2,6-dichloropyridin-3-yl phenyl ketone 
• 98-80-6 phenylboronic acid 
• 33831-72-0 ethyl 3-amino-3-phenylprop-2-enoate 
• 93-55-0 1-phenyl-propan-1-one 
• 1201-93-0 1-phenyl-3-dimethylaminoprop-2-enone 
• 606-23-5 1H-indene-1,3(2H)-dione 

Relevant academic research and scientific papers

Synthesis of substituted azafluorenones from dihalogeno diaryl ketones by palladium-catalyzed auto-tandem processes

Substituted azafluorenones were synthesized from different dihalogeno diaryl ketones under palladium catalysis by combining either Suzuki or Heck coupling with direct cyclizing arylation. Conditions were identified to allow both auto-tandem processes to p

4-Azafluorenone and α-Carboline fluorophores with green and violet/blue emission

The emission properties of three 4-azafluorenone and five new α-carboline fluorophores in both solution and thin solid films were investigated. Fluorescence of the azafluorenone is clearly enhanced in thin solid films due to the presence of phenyl/biphenyl rotors, and these derivatives can be classified as green Aggregation-Induced Emission luminogens (AIEgens) with a non-emissive heteroaromatic core structure. Compared to azafluorenones, emission of α-carbolines is hypsochromically shifted to the blue region of the electromagnetic spectrum, and most of these derivatives exhibit strong violet-blue fluorescence in both solution and thin solid film layers. Further, the effective mobility and electroluminescence of new α-carbolines were investigated in prepared organic field-effect transistors and organic light-emitting diodes, respectively.

Synthesis of Functionalized Pyridines via Cu(II)-Catalyzed One-Pot Cascade Reactions of Inactivated Saturated Ketones with Electron-Deficient Enamines

In this paper, a novel and efficient synthesis of 3-acylpyridines and pyridine-3-carboxylates through the oxidative one-pot sequential reactions of inactivated saturated ketones with electron-deficient enamines is presented. Mechanistically, the formation of the title compounds involves the in situ formation of an enone intermediate through an oxidative dehydrogenation of the saturated ketone substrate, followed by its [3+3] annulation with β-enaminone or β-enaminoester via a cascade process, including Michael addition, aldol type condensation, and oxidative aromatization.

On the Reaction of N-Vinyliminophosphoranes. Part 16. A New Synthesis of 5H-Indenopyridines and 5H-Indenopyridin-5-ones

Thermal reaction of tributyl(inden-3-ylimino)phosphorane with α,β-unsaturated ketones and aldehydes led to a Michael-type C-C bond formation and subsequent aza-Wittig reaction to give 5H-indeno(1,2-b)pyridines in good to modest yield.The products were oxidized conveniently by chromium trioxide and t-butyl hydroperoxide to give 5H-indenopyridin-5-ones, including the 4-azafluorenone alkaloid onychine.

SYNTHESIS AND SOME PROPERTIES OF SUBSTITUTED 4-AZAFLUORENES

Some chemical properties - the oxidation, condensation with aromatic aldehydes, bromination, dimerization, and amination - of 4-azafluorenes derived from α-methylene-1,5-diketones are studied.