Tetrahedron Letters p. 5375 - 5378 (1991)
Update date:2022-08-11
Topics:
Victory, Pedro
Borrell, Jose I.
Vidal-Ferran, Anton
Seoane, Carlos
Soto, Jose L.
Given the significant discrepancies in the several reported results on the reaction of chalcone (1,3-diphenyl-2-propne-1-one) (1) with malononitrile (2), a careful reinvestigation was carried out. Depending upon the reaction conditions either the open-chain Michael adduct (4), an alkoxypyridine (5), an aminoisophthalonitrile (6) or a cyclohexanol (7) is obtained. However, no 4H-pyran could be isolated from this reaction.
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