406946-75-6

Basic information

• Product Name: 3-phenacylidene-3,4-dihydro-1H-pyrido<2,3-b>pyrazin-2-one
• Synonyms: 3-phenacylidene-3,4-dihydro-1H-pyrido<2,3-b>pyrazin-2-one
• CAS NO: 406946-75-6
• Molecular Weight: 265.271
• Mol File: 406946-75-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-phenacylidene-3,4-dihydro-1H-pyrido<2,3-b>pyrazin-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-phenacylidene-3,4-dihydro-1H-pyrido<2,3-b>pyrazin-2-one(406946-75-6)
• EPA Substance Registry System: 3-phenacylidene-3,4-dihydro-1H-pyrido<2,3-b>pyrazin-2-one(406946-75-6)

Safety Data

• Hazardous Substances Data: 406946-75-6(Hazardous Substances Data)

Upstream product

• 103344-70-3 (Z)-2-hydroxy-4-oxo-4-phenylbut-2-enoic acid 
• 98-86-2 acetophenone 
• 452-58-4 2,3-Diaminopyridine 
• 55991-67-8 5-phenylfuran-2,3-dione 

Downstream Products

• 128102-81-8 3-methylpyrido<2,3-b>pyrazin-2(1H)-one 
• 65-85-0 benzoic acid 

Relevant articles and documents

Reactions of acylpyruvic acids and 2,3-dihydrofuran-2,3-diones with 2,3-diaminopyridine

Acylpyruvic acids readily react with 2,3-diaminopyridine to form (Z)-3-acylmethylene-1H-3,4-dihydropyrido[2,3-b]pyrazin-2-ones. 5-Aryl-2,3-dihydrofuran-2,3-diones which can be regarded as lactones derived from γ-enolized aroylpyruvic acids react with 2,3-diaminopyridine under mild conditions, yielding regioisomeric (Z)-2-aroylmethylene-4H-1,2-dihydropyrido[2,3-b]pyrazin-3-ones. The structure of the products and reaction chemoselectivity are discussed.