Compounds > 2-2--azino-di-(3-ethylbenzothiazoline)-6-sulfonic-acid

2-2--azino-di-(3-ethylbenzothiazoline)-6-sulfonic-acid and tartaric-acid

2-2--azino-di-(3-ethylbenzothiazoline)-6-sulfonic-acid has been researched along with tartaric-acid* in 2 studies

Other Studies

2 other study(ies) available for 2-2--azino-di-(3-ethylbenzothiazoline)-6-sulfonic-acid and tartaric-acid

Article	Year
Synthesis and antioxidant properties of pulvinic acids analogues. Bioorganic & medicinal chemistry, 2010, Nov-15, Volume: 18, Issue:22 The synthesis of three types of pulvinic acid analogues, using a diversity-oriented strategy starting from a single compound, dimethyl l-tartrate, is described. Lacey-Dieckmann condensation, alcohol dehydration and Suzuki-Miyaura cross-couplings were employed in the course of the analogues syntheses. The evaluation of the antioxidant properties of the 28 synthesized analogues was carried out using antioxidant capacity assays (protection of thymidine and β-carotene) and free radical scavenging assays (DPPH radical and ABTS radical cation). This allowed to assess the relative influence of the groups bonded to the tetronic ring and to the exocyclic double bond on the activity, as well as the importance of this exocyclic double bond. It was shown that the presence of an electron-donating group on the 3-position of the tetronic ring had a beneficial effect. It was shown in several assays that the presence of the exocyclic bond was not crucial to the activity. Topics: Benzothiazoles; beta Carotene; Biphenyl Compounds; Carboxylic Acids; Free Radical Scavengers; Lactones; Picrates; Sulfonic Acids; Tartrates; Thymidine	2010
Isolation and characterization of Mn(III) tartrate from Phanerochaete chrysosporium culture broth. FEMS microbiology letters, 2001, Jul-24, Volume: 201, Issue:2 High initial Mn(II) concentration results in accumulation of a Mn(III) tartrate complex in the growth medium of Phanerochaete chrysosporium. Since Mn(III) is the major oxidant in ligninolysis by manganese peroxidase, the role of accumulated complex should not be neglected when degradation experiments by a crude culture filtrate are performed. To study the Mn(III) complex oxidative potential it was isolated by absorption to polyamide followed by desorption with an alkaline methanol solution. High performance liquid chromatography analysis and atomic absorption spectroscopy confirmed that the isolate was Mn(III) tartrate. Oxidation of 2,2'-azino-bis(3-ethylbenz-thiazoline-6-sulfonate) was used for testing the temperature and pH stability of the isolate that also intensively oxidized 2,6-dimethoxyphenol. In comparison with the non-isolated complex in the culture filtrate, the isolate showed increased temperature and pH stability. The oxidative potential of the isolated Mn(III) tartrate was additionally tested by decolorization of the synthetic dye Indigo carmine. Topics: Benzothiazoles; Chromatography, High Pressure Liquid; Culture Media, Conditioned; Hydrogen-Ion Concentration; Molecular Weight; Oxidation-Reduction; Peroxidases; Phanerochaete; Sulfonic Acids; Tartrates; Temperature; Ultrafiltration	2001

Article

Year

Synthesis and antioxidant properties of pulvinic acids analogues.

Bioorganic & medicinal chemistry, 2010, Nov-15, Volume: 18, Issue:22

The synthesis of three types of pulvinic acid analogues, using a diversity-oriented strategy starting from a single compound, dimethyl l-tartrate, is described. Lacey-Dieckmann condensation, alcohol dehydration and Suzuki-Miyaura cross-couplings were employed in the course of the analogues syntheses. The evaluation of the antioxidant properties of the 28 synthesized analogues was carried out using antioxidant capacity assays (protection of thymidine and β-carotene) and free radical scavenging assays (DPPH radical and ABTS radical cation). This allowed to assess the relative influence of the groups bonded to the tetronic ring and to the exocyclic double bond on the activity, as well as the importance of this exocyclic double bond. It was shown that the presence of an electron-donating group on the 3-position of the tetronic ring had a beneficial effect. It was shown in several assays that the presence of the exocyclic bond was not crucial to the activity.

Topics: Benzothiazoles; beta Carotene; Biphenyl Compounds; Carboxylic Acids; Free Radical Scavengers; Lactones; Picrates; Sulfonic Acids; Tartrates; Thymidine

2010

Isolation and characterization of Mn(III) tartrate from Phanerochaete chrysosporium culture broth.

FEMS microbiology letters, 2001, Jul-24, Volume: 201, Issue:2

High initial Mn(II) concentration results in accumulation of a Mn(III) tartrate complex in the growth medium of Phanerochaete chrysosporium. Since Mn(III) is the major oxidant in ligninolysis by manganese peroxidase, the role of accumulated complex should not be neglected when degradation experiments by a crude culture filtrate are performed. To study the Mn(III) complex oxidative potential it was isolated by absorption to polyamide followed by desorption with an alkaline methanol solution. High performance liquid chromatography analysis and atomic absorption spectroscopy confirmed that the isolate was Mn(III) tartrate. Oxidation of 2,2'-azino-bis(3-ethylbenz-thiazoline-6-sulfonate) was used for testing the temperature and pH stability of the isolate that also intensively oxidized 2,6-dimethoxyphenol. In comparison with the non-isolated complex in the culture filtrate, the isolate showed increased temperature and pH stability. The oxidative potential of the isolated Mn(III) tartrate was additionally tested by decolorization of the synthetic dye Indigo carmine.

Topics: Benzothiazoles; Chromatography, High Pressure Liquid; Culture Media, Conditioned; Hydrogen-Ion Concentration; Molecular Weight; Oxidation-Reduction; Peroxidases; Phanerochaete; Sulfonic Acids; Tartrates; Temperature; Ultrafiltration

2001