title: Chemical constituents from the flowering buds of Bauhinia tomentosa Linn (FBBT).
abstract: Isolation and characterisation of compounds, 1-(2'-hydroxy-4'-methoxyphenyl)-3-(4″-methoxyphenyl)-2-hydroxypropane-1,3-dione (1), 5-hydroxyflavone (2), 3,5,7,3',4'-pentahydroxyflavone (3), 3,5,7,2',4'-pentahydroxyflavone (4) and 5,7,3',4'-tetrahydroxyflavone-3-O-rhamnoside (5) are reported from the air dried flowering buds of Bauhinia tomentosa Linn. Their structures are determined on the basis of extensive chemical and spectral evidences. Compound (1) is reported for the first time from the plant source. While compounds (2) and (4) are reported for the first time from this genus, compound (2) is reported for the second time from the natural source.
authors.affiliation: a Department of Natural Products Chemistry, School of Chemistry , Madurai Kamaraj University , Madurai , India.
authors.forename: Raja
authors.initials: R
authors.lastname: Radha
authors.affiliation: a Department of Natural Products Chemistry, School of Chemistry , Madurai Kamaraj University , Madurai , India.
authors.forename: Vairathevar Sivasamy
authors.initials: VS
authors.lastname: Vasantha
authors.affiliation: a Department of Natural Products Chemistry, School of Chemistry , Madurai Kamaraj University , Madurai , India.
authors.forename: Kasi
authors.initials: K
authors.lastname: Pitchumani
mesh_terms: D036481:Bauhinia / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010936:Plant Extracts / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet
chemical_list: D005419:Flavonoids; D010936:Plant Extracts
keywords: Bauhinia tomentosa; Fabaceae; flavonoids; hydroxy flavones; propanedione