The synthesis of a few new 4H-1-benzopyran-4-ones having substituents containing heterocyclic systems starting from -acetic acid and 2-hydroxy, 2,4-dihydroxy, 2,4,6-trihydroxy acetophenones has been described.
Fernandes, Peter S.,Gawri, Neelam V.
p. 604 - 606
(2007/10/02)
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