kw.\*:("COUMARINE(DIMETHOXY-5,7 ETHYL-4)")
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FORMATION OF 4-ETHYLCOUMARINS FROM BETA -DIKETONES-REACTION MECHANISM.AHLUWALIA VK; SUNITA.1977; INDIAN J. CHEM., B; INDIA; DA. 1977; VOL. 15; NO 7; PP. 240-241; BIBL. 3 REF.Article