916898-75-4

Basic information

• Product Name: Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-[[(diethylamino)[(4-nitrophenyl)amino]methylene]amino]-, ethyl ester
• CAS NO: 916898-75-4
• Molecular Formula: C20H22N6O4S
• Molecular Weight: 442.498
• Mol File: 916898-75-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-[[(diethylamino)[(4-nitrophenyl)amino]methylene]amino]-, ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-[[(diethylamino)[(4-nitrophenyl)amino]methylene]amino]-, ethyl ester(916898-75-4)
• EPA Substance Registry System: Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-[[(diethylamino)[(4-nitrophenyl)amino]methylene]amino]-, ethyl ester(916898-75-4)

Safety Data

• Hazardous Substances Data: 916898-75-4(Hazardous Substances Data)

Upstream product

• 109-89-7 diethylamine 
• 74002-68-9 3-(phenylsulfonyl)pyrazine-2-carbonitrile 
• 100-28-7 4-Nitrophenyl isocyanate 
• 56881-21-1 ethyl 7-aminothieno[2,3-b]-pyrazine-6-carboxylate 
• 916898-69-6 ethyl 7-(triphenylphosphoranylideneamino)-thieno[2,3-b]pyrazine-6-carboxylate 

Relevant articles and documents

A practical one-pot procedure for the synthesis of pyrazino[2′,3′:4,5]thieno[3,2-d]pyrimidinones by a tandem aza-Wittig/heterocumulene-mediated annulation strategy

A simple one-pot and efficient method is described for the synthesis of pyrazino[2′,3′:4,5]thieno[3,2-d]pyrimidinone derivatives 6 via a tandem aza-Wittig/heterocumulene-mediated annulation process. The iminophosphorane 3 reacted with aryl isocyanates, fo