204-97-7Relevant academic research and scientific papers
CONDENSATION OF o-PHENYLENEDIAMINE WITH α-DIKETONES. PREPARATION AND PHOSPHORYLATION OF NEW α-DIKETONE MONOANILS
Hafez, Taghrid S.
, p. 341 - 349 (2007/10/02)
Condensation of o-phenylendiamine 5 with N-methylisatine 4b and with benzocoumaranedione 12 under different conditions was studied.Monoanils N-methyl-3-(2-aminophenylimino)-indoline-2-one 6b and benzocoumaran-3-(2-aminophenylimino)-2-one 13 were isolated.Dimethyl phosphite add to anils 6b and/or 13 to give the corresponding quinoxalines 7 and 14 respectively.On the other hand, diethyl phosphite add to carbonyl-oxygen double bond in compounds 6b & 13 to give the respective phosphate adducts 16 & 17a.Structural reasonings are based on chemical and spectroscopic results. Key words: α-Diketones; a-diketone monoanils; schiff base; quinoxaline; dialkyl phosphites; phosphates.
