445296-17-3

Basic information

• Product Name: C₁₉H₁₅N₃O₃
• CAS NO: 445296-17-3
• Molecular Weight: 333.346
• Mol File: 445296-17-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₉H₁₅N₃O₃(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₉H₁₅N₃O₃(445296-17-3)
• EPA Substance Registry System: C₁₉H₁₅N₃O₃(445296-17-3)

Safety Data

• Hazardous Substances Data: 445296-17-3(Hazardous Substances Data)

Upstream product

• 90-47-1 xanth-9-one 
• 1452-63-7 picolinic acid hydrazide 
• 835-11-0 2,2'-dihydroxybenzophenone 

Relevant articles and documents

Xanthones in heterocyclic synthesis. An efficient and general route for the synthesis of regioselectively substituted phthalazines

Xanthone undergoes regioselective substitution and nucleophically - triggered ring opening to the corresponding ketone. Hydrazone of the latter oxidatively rearranges to ortho-diacylarenes, which, then, with hydrazine gives regioselectively substituted phthalazines. Molecular modeling analysis and 1HNMR spectra indicate an intramolecular H-bonding engaging phenol OH and phthalazine N-3 atom.