On the Reaction of 2,4-Dihydroxy-1,4-benzoxazin-3-one to 2(3)-Benzoxazolinone.
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چکیده
منابع مشابه
1,4-benzoxazin-3-one, 2-benzoxazolinone and gallic acid from Calceolaria thyrsiflora Graham and their antibacterial activity.
Secondary metabolites, DIBOA, HBOA, 7-OH-HBOA, BOA and gallic acid, were isolated and quantified from Calceolaria thyrsiflora Graham, a native medicinal plant of Chile belonging to the Scrophulariaceae family. The highest DIBOA contents were determined in leaves (145 mmol kg(-1) dry wt) and flowers (161 mmol kg(-1) dry wt). Antibacterial activities of DIBOA, HBOA, BOA, gallic acid and infusions...
متن کاملContents of 1,4-benzoxazin-3-ones and 2-benzoxazolinone from Stenandrium dulce (Nees).
Secondary metabolites, DIBOA, HBOA, 7-OH-HBOA and BOA, were isolated and quantified from S. dulce (Nees), a native species in Chile belonging to the Acanthaceae family. The highest DIBOA and HBOA contents were determined in leaves (9.25 mmol kg(-1) fr. wt) and root (6.81 mmol kg(-1) fr. wt), respectively. Aglycones, 7-OH-HBOA and HBOA, were isolated together from root extracts of Acanthaceae sp...
متن کاملNatural variation in maize aphid resistance is associated with 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one glucoside methyltransferase activity.
Plants differ greatly in their susceptibility to insect herbivory, suggesting both local adaptation and resistance tradeoffs. We used maize (Zea mays) recombinant inbred lines to map a quantitative trait locus (QTL) for the maize leaf aphid (Rhopalosiphum maidis) susceptibility to maize Chromosome 1. Phytochemical analysis revealed that the same locus was also associated with high levels of 2-h...
متن کامل7-Chloro-4-phenethyl-2H-1,4-benzoxazin-3(4H)-one
In the crystal structure of title compound, C(16)H(14)ClNO(2), the dihedral angle between the aromatic rings is 4.2 (2)°.
متن کامل6-Chloro-2H-1,4-benzoxazin-3(4H)-one
In the title compound, C(8)H(6)ClNO(2), the conformation of the six-membered heterocyclic ring is close to screw boat and the mol-ecules are linked via inter-molecular N-H⋯O hydrogen bonds along the b axis.
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1961
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.15-0221