80560-75-4

Upstream product

• 94-41-7 benzalacetophenone 
• 100-46-9 benzylamine 
• 85056-65-1 2-(ethoxycarbonyl)-4,6-diphenylpyrylium trifluoromethanesulphonate 
• 80576-13-2 1-benzyl-2,4-diphenyl-6-ethoxycarbonylpyridinium CF₃SO₃(-) 

Downstream Products

• 104659-76-9 (4,6-Diphenyl-pyridin-2-yl)-p-tolyl-methanone 
• 104659-78-1 (4-Chloro-phenyl)-(4,6-diphenyl-pyridin-2-yl)-methanone 
• 104659-77-0 (4,6-Diphenyl-pyridin-2-yl)-(4-nitro-phenyl)-methanone 
• 104659-75-8 (4,6-diphenylpyridin-2-yl)(phenyl)methanone 
• 100-44-7 benzyl chloride 
• 42197-32-0 benzaldehyde-[N-(4-dimethylamino-phenyl)-oxime ] 
• 80561-09-7 2-(3-Chloro-phenyl)-3,5,7-triphenyl-2,3-dihydro-8aH-oxazolo[3,2-a]pyridine 
• 80561-08-6 2-(3-Nitro-phenyl)-3,5,7-triphenyl-2,3-dihydro-8aH-oxazolo[3,2-a]pyridine 

Relevant academic research and scientific papers

The conversion of primary amines into nitrones: an extension of the Kroehnke reaction

Primary amines react with 2-(ethoxycarbonyl)-4,6-diphenylpyryliums to form pyridiniums.These are hydrolysed to 2-carboxylatopyridiniums which react with p-nitroso-N,N-dimethylaniline to give nitrones.

Pyridinium Ylides Derived from Pyryliums and Amines and a Novel Rearrangement of 1-Vinyl-1,2-dihydropyridines

1-Benzyl-2,4-diphenylpyridiniums with benzaldehydes give oxazolopyridines which are dehydrated to 1-styryl derivatives.On pyrolysis the 1-styryl-1,2-dihydropyridine 21a gave 2,4,6-triphenylpyridine and m-chlorostyrene by a ring-enlargement-ring-contraction mechanism: this is a general reaction of 1-vinyl-1,2-dihydropyridines.