TY - JOUR ID - 31374 TI - REACTION OF QUINONEIMINES WITH KETENES JO - Journal of Sciences, Islamic Republic of Iran JA - JSCIENCES LA - en SN - 1016-1104 Y1 - 1994 PY - 1994 VL - 5 IS - 1 SP - EP - DO - N2 - The reactivity of quinoneimines towards ketene and diphenylketene was examined. N-Phenylbenzoquinoneirnines (I), (2) and also N-phenylnaphthoquinoneimine react with ketene to give the spiro-adducts (5), (7) and (1 1) respectively. These adducts were stable even after prolonged heating in high boiling solvent. Reaction of the above imines with diphenylketene also afforded 13- lactam spiro-adducts (6), (8) and (12), but they rearranged to oxindole derivatives (9), (10) and (13) by heating in boiling ethanol. N-Phenyl-9, 10- anthraquinoneirnine, however, was inert towards ketene or diphenylketene under the same reaction conditions UR - https://jsciences.ut.ac.ir/article_31374.html L1 - https://jsciences.ut.ac.ir/article_31374_9b7c2123c5aa44d537aa422d7096ade8.pdf ER -