Tetrahedron Letters p. 5899 - 5902 (1994)
Update date:2022-07-30
Topics:
Silva
Pinto
Cavaleiro
A new procedure to synthesise 5-hydroxy derivatives of 2-phenyl- and 2- styrylchromones is reported. The assignments of their C-6 and C-8 atoms, made by proton-coupled 13C and selective INEPT NMR spectroscopy, show that the literature data for such carbon centres must be interchanged.
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Doi:10.1016/0957-4166(94)80084-7
(1994)Doi:10.1021/acsmedchemlett.0c00100
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