94411-72-0

Basic information

• Product Name: 3,4-Dihydro-1H-pyrano<3,4-b>chinolin
• CAS NO: 94411-72-0
• Molecular Weight: 185.225
• Mol File: 94411-72-0.mol

Chemical Properties

• CAS DataBase Reference: 3,4-Dihydro-1H-pyrano<3,4-b>chinolin(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-Dihydro-1H-pyrano<3,4-b>chinolin(94411-72-0)
• EPA Substance Registry System: 3,4-Dihydro-1H-pyrano<3,4-b>chinolin(94411-72-0)

Safety Data

• Hazardous Substances Data: 94411-72-0(Hazardous Substances Data)

Upstream product

• 82272-05-7 4-(3,4-dihydro-2H-pyran-5-yl)morpholine 
• 529-23-7 o-aminobenzaldehyde 
• 23462-75-1 5,6-dihydro-2H-pyran-3(4H)-one 

Relevant articles and documents

Pyrans, 100. - 5,6-Dihydro-2H-pyran-3(4H)-one as a Building Unit for the Synthesis of Pyran-annulated Heterocyclic Compounds

Only in a few cases 5,6-dihydro-2H-pyran-3(4H)-one (3) reacts regioselectively with ortho-substituted phenylcarbonyl compounds to form pyran-annulated heterocyclic compounds like the pyranoquinoline 7c.Better results are obtained in reactions involving the enamine 15d derived from 3, the silyl enol ether 18 and the lithium enolate 14 derived from 18.These pyran derivatives with 2,3- or 3,4-double bonds are well suited for successful synthesis of 2-or 4-substituted 3-pyranones such as 2, 21a, 21b, 23a - c, 26a - c, 31a - c, 32, and 35a - c.They also allow to synthesize pyrano- or -quinolines, -quinolones, -chromones, and -thiochromones 6a, 30a - c, 38a - d.