maleoylacetic-acid and butenolide

maleoylacetic-acid has been researched along with butenolide* in 1 studies

Other Studies

1 other study(ies) available for maleoylacetic-acid and butenolide

Article	Year
Biosynthesis of a cyclic tautomer of (3-methylmaleyl)acetone from 4-hydroxy-3,5-dimethylbenzoate by Pseudomonas sp. HH35 but not by Rhodococcus rhodochrous N75. Biochemical and biophysical research communications, 1997, Sep-08, Volume: 238, Issue:1 Here we report that the bacterial catabolism of 4-hydroxy-3,5-dimethylbenzoic acid 1 takes a different course in Rhodococcus rhodochrous N75 and Pseudomonas sp. strain HH35. The former organism accumulates a degradation metabolite of the acid which we isolated and identified as 2,6-dimethylhydroquinone 2. The latter bacterial strain converts the acid and the hydroquinone into a dead-end metabolite. This novel compound was characterised unequivocally by mass spectrometry and 1H and 18C NMR and UV spectroscopy as 4-acetonyl-4-hydroxy-2-methylbut-2-en-1,4-olide 4, a cyclic tautomer of (3-methylmaleyl)acetone, which exists as the enol carboxylate form 8 in aqueous solution. Topics: 4-Butyrolactone; Benzoates; Biotransformation; Furans; Isomerism; Magnetic Resonance Spectroscopy; Maleates; Oxygen Consumption; Pseudomonas; Rhodococcus	1997

Article

Year

Biosynthesis of a cyclic tautomer of (3-methylmaleyl)acetone from 4-hydroxy-3,5-dimethylbenzoate by Pseudomonas sp. HH35 but not by Rhodococcus rhodochrous N75.

Biochemical and biophysical research communications, 1997, Sep-08, Volume: 238, Issue:1

Here we report that the bacterial catabolism of 4-hydroxy-3,5-dimethylbenzoic acid 1 takes a different course in Rhodococcus rhodochrous N75 and Pseudomonas sp. strain HH35. The former organism accumulates a degradation metabolite of the acid which we isolated and identified as 2,6-dimethylhydroquinone 2. The latter bacterial strain converts the acid and the hydroquinone into a dead-end metabolite. This novel compound was characterised unequivocally by mass spectrometry and 1H and 18C NMR and UV spectroscopy as 4-acetonyl-4-hydroxy-2-methylbut-2-en-1,4-olide 4, a cyclic tautomer of (3-methylmaleyl)acetone, which exists as the enol carboxylate form 8 in aqueous solution.

Topics: 4-Butyrolactone; Benzoates; Biotransformation; Furans; Isomerism; Magnetic Resonance Spectroscopy; Maleates; Oxygen Consumption; Pseudomonas; Rhodococcus

1997