Anaerobic metabolism of 2-hydroxybenzoic acid (salicylic acid) by a denitrifying bacterium

1996 ◽  
Vol 165 (6) ◽  
pp. 402-408 ◽  
Author(s):  
C. F. C. Bonting ◽  
Georg Fuchs
Keyword(s):  
Salicylic Acid ◽  
Anaerobic Metabolism ◽  
Hydroxybenzoic Acid ◽  
Denitrifying Bacterium

Zur Biosynthese der Benzoesäure in Gaultheria procumbens L. II

1964 ◽  
Vol 19 (9) ◽  
pp. 781-783 ◽  
Author(s):  
Hans Grisebach ◽  
Karl-Otto Vollmer
Keyword(s):  
Salicylic Acid ◽  
Cinnamic Acid ◽  
Protocatechuic Acid ◽  
Total Activity ◽  
Syringic Acid ◽  
The Other ◽  
Carboxyl Group ◽  
Hydroxybenzoic Acid ◽  
Benzoic Acids ◽  
Gaultheria Procumbens

Further investigations on the biosynthesis of benzoic acids in Gaultheria procumbens L. have shown that besides salicylic acid all the other benzoic acids (gentisinic acid, p-hydroxybenzoic acid, protocatechuic acid, o-pyrocatechuic acid(?), syringic acid and vanillinic acid) can be formed from cinnamic acid. In the case of vanillinic acid it was proved that the total activity is located in the carboxyl group when cinnamic acid-[3-14C] is the precursor.Formiat-14C is incorporated into the methylester group of methylsalicylate.

Effects of Salicylic Acid on Mushroom Tyrosinase and B16 Melanoma Cells

2007 ◽  
Vol 62 (3-4) ◽  
pp. 227-233 ◽  
Author(s):  
Sadaaki Tamura ◽  
Teruhiko Nitoda ◽  
Isao Kubo
Keyword(s):  
Salicylic Acid ◽  
Reaction Time ◽  
Initial Rate ◽  
Melanoma Cells ◽  
B16 Melanoma ◽  
Enzymatic Oxidation ◽  
Hydroxybenzoic Acid ◽  
Mushroom Tyrosinase ◽  
B16 Melanoma Cells

Abstract Salicylic acid slightly inhibited the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase noncompetitively without being oxidized. In contrast, 4-hydroxybenzoic acid did not inhibit this enzymatic oxidation if a longer reaction time was observed, although it suppressed the initial rate of the oxidation to a certain extent. Neither acid showed noticeable effects on cultured murine B16-F10 melanoma cells except weak cytotoxicity.

The Effect of Some Monohydroxybenzoic and Dihydroxybenzoic Acids as Auxin Synergists on Rooting Softwood Cuttings of Basswood (Tiliaamericana L.) Under Mist

1975 ◽  
Vol 5 (3) ◽  
pp. 500-502 ◽  
Author(s):  
W. A. G. Morsink ◽  
V. G. Smith
Keyword(s):  
Salicylic Acid ◽  
Phenolic Compounds ◽  
Hydroxybenzoic Acid ◽  
Dihydroxybenzoic Acid ◽  
Promoting Effect ◽  
Indolebutyric Acid ◽  
Single Clone ◽  
Juvenile Population

Softwood cuttings of one clone and one juvenile population of basswood were rooted under intermittent mist, using a 2-min basal dip of indolebutyric acid (IBA) at concentrations of 1000, 5000, and 10 000 parts per million (ppm) in combination with one of salicylic acid, p-hydroxybenzoic acid, 3,5-, 2,5-, and 2,6-dihydroxybenzoic acids at concentrations of 5, 50, and 100 ppm. None of the phenolic compounds showed any root-promoting effect when used singly. In combination with IBA, 2,5-dihydroxybenzoic acid showed a root-promoting effect when applied to cuttings of the population but not for cuttings of the single clone.A root-promoting effect at certain of the higher concentrations of the rest of the phenols when combined with IBA could not clearly be distinguished from sample variation. IBA alone or in combination with any of the phenols had a much smaller root-promoting effect when applied to the cuttings of the single clone.

scholarly journals SYNTHESIS OF FLAVANONE-6-CARBOXYLIC ACID DERIVATIVES FROM SALICYLIC ACID DERIVATIVE

2012 ◽  
Vol 12 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Muhammad Idham Darussalam Mardjan ◽  
Retno Ambarwati ◽  
Sabirin Matsjeh ◽  
Tutik Dwi Wahyuningsih ◽  
Winarto Haryadi
Keyword(s):  
Salicylic Acid ◽  
Carboxylic Acid ◽  
Acid Derivative ◽  
Ring Closure ◽  
Hydroxybenzoic Acid ◽  
Fries Rearrangement ◽  
Acetophenone Derivatives ◽  
Ft Ir ◽  
Benzaldehyde Derivatives ◽  
Derivatives Of

Synthesis of flavanone-6-carboxylic acid derivatives had been conducted via the route of chalcone. The synthesis was carried out from salicylic acid derivative, i.e. 4-hydroxybenzoic acid, via esterification, Fries rearrangement, Claisen-Schmidt condensation and 1,4-nucleophilic addition reactions. Structure elucidation of products was performed using FT-IR, 1H-NMR, GC-MS and UV-Vis spectrometers. Reaction of 4-hydroxybenzoic acid with methanol catalyzed with sulfuric acid produced methyl 4-hydroxybenzoate in 87% yield. The acid-catalyzed-acetylation of the product using acetic anhydride gave methyl 4-acetoxybenzoate in 75% yield. Furthermore, solvent-free Fries rearrangement of methyl 4-acetoxybenzoate in the presence of AlCl3 produced 3-acetyl-4-hydroxybenzoic acid as the acetophenone derivatives in 67% yield. Then, Claisen-Schmidt condensation of the acetophenone and benzaldehyde derivatives of p-anisaldehyde and veratraldehyde in basic condition gave 2'-hydroxychalcone-5'-carboxylic acid derivatives  in 81 and 71 % yield, respectively. Finally, the ring closure reaction of the chalcone yielded the corresponding flavanone-6-carboxylic acids in 67 and 59% yield, respectively.

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