Heterocyclic Communications p. 157 - 162 (2010)
Update date:2022-09-26
Topics:
El-Khawaga, Ahmed M.
El-Zohry, Maher F.
Mohamed, Thanaa A.
Hussein, Essam M.
2-Naphthol reacted with 3-dicyanomethylidine-1-ethyl-2-oxoindoline in absolute ethanol to afford 2-Amino-3- cyano-1′-ethylspiro{benzo[f]chromen- 4-3′-indolin}-2′-one, which used as key intermediate to synthesis fused spiropolyheterocyclic derivatives of pyrimido- benzochromen and/or pyridobenzochromen nucleus incorporated indoline moiety.
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