91168-58-0

Basic information

• Product Name: 1,2-dihydro-2-(4-ethoxybenzoylcyanomethylidene)-1-methylpyridine
• CAS NO: 91168-58-0
• Molecular Weight: 280.326
• Mol File: 91168-58-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,2-dihydro-2-(4-ethoxybenzoylcyanomethylidene)-1-methylpyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-dihydro-2-(4-ethoxybenzoylcyanomethylidene)-1-methylpyridine(91168-58-0)
• EPA Substance Registry System: 1,2-dihydro-2-(4-ethoxybenzoylcyanomethylidene)-1-methylpyridine(91168-58-0)

Safety Data

• Hazardous Substances Data: 91168-58-0(Hazardous Substances Data)

Upstream product

• 694-85-9 1-methyl-2-pyridone 
• 86213-26-5 3-(4-ethoxyphenyl)propiolonitrile 

Relevant articles and documents

Cycloaddition Reaction of 1-Methyl-2(1H)-pyridinone with 3-(4-Ethoxyphenyl)propynenitrile - Intermediate Formation of a Spiro-oxete Ring Compound

1-Methyl-2(1H)-pyridinone (1) reacts with 3-(4-ethoxyphenyl)propynenitrile (2) to give 1,2-dihydro-2-(4-ethoxybenzoylcyanomethylidene-1-methylpyridine (5) the structure of which is assigned based on spectral data and confirmed by X-ray.The formation of a Diels-Alder adduct is not observed.Cycloaddition at lactam carbonyl leading to the formation of a 3'-cyano-4'-(4-ethoxyphenyl)-1-methyl-1,2-dihydropyridine-2-spiro-2'-oxete (4) as an intermediate followed by valence isomerisation to give a pyridone methide derivative has been proposed.