Recently we required a quantity of 9-decenoic acid as the starting material for a multistep synthesis. This acid, unavailable commercially, has been prepared from the C11 and C9 precursors via the Barbier-Wieland1,2 and Arndt-Eistert3 reactions, respectively.doi:10.1080/00397917908064130...
Carboxylic acid - Hydroxy, Keto, Acids: The 2-, 3-, 4-, and 5-hydroxycarboxylic acids all lose water upon heating, although the products are not the same. The 2-hydroxy acids form cyclic dimeric esters (formed by the esterification of two molecules of th
Carboxylic acid - Organic, Synthetic, Derivatives: Formic acid, HCOOH, is found not only in ants but also in the droplets on the tiny hairs of the stinging nettle plant (in the family Urticaceae), and the acidity of this compound causes the stinging sens
Aswithaldehydes,thecarboxylgroupmustbelocatedattheendofacarbonchain.IntheIUPACsystemofnomenclaturethecarboxylcarbonisdesignated#1,andothersubstituentsarelocatedandnamedaccordingly.ThecharacteristicIUPACsuffixforacarboxylgroupis"oicacid",andcaremustbetakennottoconfusethissystematicnomenclaturewiththesimilarcommonsystem....
Gaseous phytohormone ethylene levels are directly influenced by the production of its immediate non-volatile precursor 1-aminocyclopropane-1-carboxylic acid (ACC). Owing to the strongly acidic character of the ACC molecule, its quantification has been difficult to perform. Here, we present a simple ...
The above mechanism explains how the hydrolysis reaction can be catalyzed by either hydrogen or hydroxyl ions (specific acid–base catalysis), as well as by other nucleophiles (general acid–base catalysis). Insights into the relative hydrolytic stability of carboxylic acid derivatives can ...
6-Quinolinecarboxylic acid, with the chemical formula C10H7NO2, has the CAS number 10349-57-2. It appears as a solid with a yellow color and has no distinct odor. The basic structure of 6-Quinolinecarboxylic acid consists of a quinoline ring attached to a carboxylic acid group. This compo...
The aim of this study was to evaluate an effect of short and medium chain carboxylic acids (CAs) rich stream derived from acidogenic mixed culture fermentation of acid whey on polyhydroxyalkanoates (PHAs) synthesis by Paracoccus homiensis and compare it with the impact of individual synthetic CA...
The acid-catalysed addition of β-hydroxy carboxylic acidsto aldehydes or acetals <86S649,87HCA448> provides 4-oxo-1,3-dioxane derivatives (Equation (136)). The substrates are heated with an acid catalyst such as toluene-p-sulfonic acid <87HCA448,89HCA690>, acetic acid or sulfuric acid ...
(R)-hydroxybutyric acid is most effective in ester formation, followed by 2-ketobutyric acid and 3-hydroxybutyric acid. Hexanoic acid is less effective and veratric acid produces no esters at all. At lower temperatures, 2-ketobutyric acid is the most reactive compound. One conclusion is that ...