Abstract
The multicomponent condensation of aldehydes, malononitrile derivatives, 1,3-dicarbonyl compounds of the carbo- and heterocyclic series, and alkyl halides has been studied. The transformation is initiated by the Knoevenagel reaction and leads to the formation of functionally substituted condensed 2-amino- 4 H-pyrans. The structure of a number of products was studied by X-ray diffraction.
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