Browsing by Author "3e4810c0-0b03-4e20-8316-4cd2dcc60f54"
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Bravo, Hector R.; Ernesto Clavijo, Hector R.; Weiss López, Boris (Sociedad Chilena de Quimica, 2001)HOMO and LUMO energies from a 6-31G** full geometry optimization of a series of 7 cyclic hydroxamic acid derivatives were calculated. According to the LUMO energy, the molecules can be classified as hard electrophiles ...
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Zúñiga, Gustavo E.; Copaja, Sylvia V.; Bravo, Hector R.; Argandoña, Victor H. (1990)Hydroxamic acids were quantified by HPLC in leaves of one-week-old seedlings and in 30 day-old callus tissues of four wheat cultivars. Leaves accumulated preferentially 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA). ...
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Bravo, Hector R. (2000)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.