148759-06-2Relevant academic research and scientific papers
SELECTIVE AND SIMULTANEOUS DEPROTECTION OF AMINE AND LACTAM FUNCTIONS IN THE SYNTHESES OF PYRIDAZINOOXAZINONES AND PYRIDAZINOTHIAZINONES
Zara-Kaczian, Erzsebet,Matyus, Peter
, p. 519 - 528 (2007/10/02)
Benzyloxymethyl (BOM) and benzyl (Bz) groups were employed for protection of the amide- and amino-nitrogens in the title compounds.The BOM protective group could be removed selectively or simultaneously with the Bz group depending on the reaction conditions.By catalytic hydrogenation of the fully protected pyridazinooxazinone (1b), unexpectedly the 4-methyl derivative (1e) could also be prepared.The mechanism for the formation of 1e is also discussed.
