kw.\*:("CHROMONE(ETHYL-2 HYDROXY-7 METHYL-5 PROPIONYL-3)")
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FORMATION OF COUMARINS FROM BETA -DIKETONES. II. A REINVESTIGATION OF KOSTANECKI-ROBINSON PROPIONYLATION OF BETA -ORCACETOPHENONE & ITS 4-O-METHYL ETHER.AHLUWALIA VK; SUNITA.1976; INDIAN J. CHEM., B; INDIA; DA. 1976; VOL. 14; NO 9; PP. 682-684; BIBL. 5 REF.Article