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NEW PRODUTS FROM THE DECOMPOSITION OF 2-HYDROXY-1,4BENZOXAZIN-3-ONE (HBOA) A NATURAL LACTAM FROM CE- REALS AND THE 7-NITRODERIVATIVE (HNBOA)
(Sociedad Chilena de Química, 2000)
New produis from the decomposition of 2-Hydroxy-1,4benzoxazin-3-one (HBOA) a natural lactam from cereals and the 7-nitroderivative (HNBOA)
The products 3-hydroxy-1,4-benzoxazin-2-one (5) and 5-nitro-2-aminophenol were isolated from the decomposition reaction of the title compounds in aqueous solutions. Two mechanisms are proposed for the formation of these products.
N-acylation of lactams derived from natural 2-benzoxazolinones and 1,4-benzoxazin-3-ones
(Sociedad Chilena de Quimica, 1999)
The N-acylation reaction of a series of lactams of biological interest, derived from 2-benzoxazolinones and 1,4-benzoxazin-3-one, with acetic anhydride has been studied. The reaction yields show the same tendency as that ...
Antimicrobial activity of cereal hydroxamic acids and related compounds
Hydroxamic acids derived from 2,4-dihydroxy-1,4-benzoxazin-3-one or 4-hydroxy-1,4-benzoxazin-3-one inhibited the growth of Staphylococcus aureus, Escherichia coli and Candida albicans. On the basis of structure-activity ...
N-ACYLATION OF LACTAMS DERIVED FROM NATURAL 2- BENZOXAZOLINONES AND 1,4-BENZOXAZIN-3-ONES
(Sociedad Chilena de Química, 1999)
Hydroxamic acids derived from 2-hydroxy-2h-1,4-benzoxazin-3(4h)-one: Key defense chemicals of cereals
Many cereals accumulate hydroxamic acids derived from 2-hydroxy-2H-1,4- benzoxazin-3(4H)-one. These benzoxazinoid hydroxamic acids are involved in defense of maize against various lepidopteran pests, most notably the ...
Reaction of a cyclic hydroxamic acid from gramineae with thiols
An insect inhibitor isolated from maize extracts, 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), reacted with cysteine, mercaptoethanol, ethane. © 1982.
Inhibition of ATPase from chloroplasts by a hydroxamic acid from the gramineae
-DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one), a hydroxamic acid from the Gramineae involved in the resistance of cereals to aphids, inhibits. © 1983.
Analysis of the structure and the FT-IR and Raman spectra of 2-(4-nitrophenyl)-4H-3,1-benzoxazin-4-one. Comparisons with the chlorinated and methylated derivatives
(Elsevier Science, 2017-07)
In this work, the structural, topological and vibrational properties of the monomer and three dimers of the 2-(4-nitrophenyl)-4H-3,1-benzoxazin-4-one (NPB) derivative were studied combining the experimental FTIR and FT-Raman ...
Stimulatory effect of DIMBOA on NADH oxidation catalysed by horseradish peroxidase
2,4-Dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) effectively enhanced the rate of NADH oxidation catalysed by horseradish peroxidase isoenzyme C (HRPC), a reaction that generates H2O2. The effect showed saturation ...