Aldehyde condensation products of 4-hydr
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Ilia I Manolov
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Article
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1998
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Elsevier Science
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French
β 98 KB
4-Hydroxycoumarin and Schiff bases condense in glacial acetic acid at reflux. Benzylidenephenyliminechroman or 3,3'-(p-substituted-arylmethylidene)-bis-4-hydroxycoumarin are the final products.