68063-24-1

Upstream product

• 21924-94-7 11-phenyl-5,11-dihydro-diindeno[1,2-b:2′,1′-e]pyridine-10,12-dione 
• 98935-16-1 (2,4-Dibenzoyl-3-phenyl-pent-4-enyl)-trimethyl-ammonium; iodide 
• 68253-35-0 indan-1-one oxime 
• 352336-01-7 2,3-dihydro-1H-inden-1-one O-acetyloxime 
• 100-52-7 benzaldehyde 
• 83-33-0 inden-1-one 
• 17598-66-2 2-benzylidene-indan-1-one 
• 43226-37-5 2,4-dibenzoyl-3-phenyl-1,4-pentadiene 

Relevant academic research and scientific papers

The synthesis of polysubstituted pyridines using nano Fe3O4 supported hydrogensulfate ionic liquid

Reaction of 1-methylimidazole with 3-(trimethoxysilyl)propyl chloride resulted in formation of 1-methyl-3-(trimethoxysilyl)propyl imidazolium chloride ([pmim]Cl). Anchoring of the ionic liquid on to silica-coated magnetic Fe3O4 particles afforded the corresponding supported ionic liquid MNP-[pmim]Cl. Exchanging the Cl- anion by treatment with H2SO4 gave the Bronsted ionic liquid MNP-[pmim]HSO4. FT-IR, XRD, SEM, TEM, TG/DTG, VSM, and CHN analysis were used to characterize the supported ionic liquid. The results indicated the catalyst was a nanostructure. The catalytic activity of the supported ionic liquid was examined in the synthesis of the polysubstituted pyridines by reaction of aromatic aldehydes, and acetophenones or indan-1-one with ammonium acetate under solvent-free conditions. The catalyst could be easily recovered, by applying an external magnetic field, and reused at least six runs without deterioration of its catalytic activity.

Copper-Catalyzed coupling of oxime acetates with aldehydes: A new strategy for synthesis of pyridines

Copper-catalyzed coupling of oxime acetates with aldehydes offers a new strategy for the synthesis of highly substituted pyridines. This novel method tolerates a wide range of functionality and allows for rapid elaboration of the oxime acetates into a variety of substituted pyridines.

An efficient improve for the kroehnke reaction: One-pot synthesis of 2,4,6-triarylpyridines using raw materials under microwave irradiation

A series of 2,4,6-triarylpyridines have been prepared by the one-pot reaction of aldehydes with aromatic ketones in the presence of ammonium acetate under microwave irradiation without catalyst. This method has the advantage of easier workup, shorter reaction time, higher yield, and environment-friendly. Copyright

Reaction of 3,5-carbonyl-substituted 1,4-dihydropyridines with hydrazine hydrate

The interaction of 3,5-carbonyl-substituted derivatives of 1,4-dihydropyridine and some analogs of it with hydrazine hydrate occurs with fission of the heterocycle. In the case of alkoxycarbonyl-substituted compounds a reverse Michael reaction predominate

A versatile domino synthesis affording novel S- and U-shaped terpyridines. Synthesis, properties and crystal structure

The development of a simple and general method for the preparation of multifunctional terpyridines is described. The treatment of the ketones 1a-g with ternary iminium salts results in the formation of the isomeric terpyridines 6 and 8 (according to a domino reaction). A possible reaction mechanism is discussed. In some cases the isolation of the postulated dihydropyridine intermediates was successful. The isolation of the 1,4-dihydropyridines 5e, 5j, and 5r (donor-substituted) is surprising, because most of the stable dihydropyridines are acceptor-substituted. In several cases the yields of such domino reactions are very high (>80%). Whether S-or U-shaped terpyridines are formed is immediately recognized by NMR spectroscopy. Some special cases (8c, 8e, 6h) were investigated by means of single-crystal X-ray analysis. VCH Verlagsgesellschaft mbH, 1996.

REACTIONS OF 1,5-DIKETONES. XLV. 1,5-DIKETONES OF THE INDANE SERIES AND THEIR CONVERSION INTO INDANOPYRIDINES

The intramolecular cyclization of aryl aliphatic α-methylene and α,α'-dimethylene-1,5-diketones by the action of sulfuric acid, leading to the formation of 1,5-diketones of the indane series, was studied.When treated with hydroxylamine hydrochloride, the

Kinetics and Mechanisms of Nucleophilic Displacements with Heterocycles as Leaving Groups. Part 6. Reactions of N-(Substituted Benzyl)-azaheterocyclonium Compounds with Piperidine

The preparation is described of series of N-(p-substituted)benzyl and N-(2-furfuryl) compounds with different heterocyclic leaving groups.First- and second-order rate constants for their reactions with piperidine in chlorobenzene are measured and discusse