Benzopyrans. Part 45. Reactions of monobrominated 3-acetyl-2-methyl-1-benzopyran-4-one with some binucleophiles
Chandra Kanta Ghosh; Ghosh C.; Sumit Kumar Karak; Ajit Kumar Chakravarty
Journal of Chemical Research, 2004, 84-86
DOI там нету, что-ли, не понял...
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http://www.ingentaconnect.com/content/stl/jcr/2004/00002004/00000001/art00031