89730-40-5

Upstream product

• 89730-41-6 C₂₀H₁₉N 
• 768-03-6 Phenyl vinyl ketone 
• 33988-20-4 11-Acetoxy-9,10-dihydro-9,10-ethanoanthracen-11-carbonitril 
• 6372-63-0 9,10-dihydro-9,10-ethanoanthracen-11-one 
• 120-12-7 anthracene 

Downstream Products

• 89730-42-7 5,10-Dihydro-2-phenyl-5,10<1',2'>benzenobenzochinolin 
• 89730-43-8 9-(2-Amino-6-phenyl-3-pyridyl)anthracen 

Relevant academic research and scientific papers

1-Aza- and 1,9-Diazatriptycenes

The polycyclic 1,5-diketone 4 is synthesized via the enamine 2 from ketone 1 and phenyl vinyl ketone (3).On reacting the 1,5-diketone 4 with hydroxylamine the expected ring closure to the 1-azatriptycene 6 competes with a ring cleavage by an anomalous Beckmann rearrangement of the oxime yielding the intermediate nitrile 10 which cyclizes to afford the β-anthracenyl-α-amino-pyridine 7. Cycloaddition of dehydrobenzene, generated by diazotation of anthranilic acid, with the pyridoquinolines 13a, b produces the diazatriptycenes 15a,b.