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. (1373). REACTION OF QUINONEIMINES WITH KETENES. , 5(1), -.
. "REACTION OF QUINONEIMINES WITH KETENES". , 5, 1, 1373, -.
. (1373). 'REACTION OF QUINONEIMINES WITH KETENES', , 5(1), pp. -.
. REACTION OF QUINONEIMINES WITH KETENES. , 1373; 5(1): -.

REACTION OF QUINONEIMINES WITH KETENES

Journal of Sciences, Islamic Republic of Iran
مقاله 6، دوره 5، شماره 1، شهریور 1994    اصل مقاله (230.56 K)
چکیده
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
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