83990-08-3

Upstream product

• 81386-54-1 9-Isopropoxy-4-phenylamino-anthracene-1,10-dione 
• 83990-06-1 2-Methyl-6-phenylamino-2H-3-oxa-1-aza-benzo[de]anthracen-7-one 
• 83990-01-6 10-[(E)-Ethylimino]-4-hydroxy-1-phenylamino-10H-anthracen-9-one 

Downstream Products

• 83990-10-7 1-hydroxy-4-phenylamino-9,10-anthraquinone 9-imine 
• 83990-09-4 1-hydroxy-4-phenylamino-9,10-anthraquinone 9-acetylimine 

Relevant academic research and scientific papers

1-HYDROXY-9,10-ANTHRAQUINONE 9-ALKYLIMINES AND THEIR CONVERSION INTO 1,3-OXAZINOANTHRONES

A series of previously uninvestigated N-alkyl-substituted 1-hydroxyanthraquinone 9-imines were obtained.In an acidic medium they decompose to hydroxyanthraquinone, but the 4-amino derivatives are stable to acid hydrolysis.In polar solvents in the presence of bases the 1-hydroxy-9,10-anthraquinone 9-alkylimines undergo intramolecular cyclization to derivatives of anthra-1,3-oxazinoanthrones.