926-71-6

Usage

InChI:InChI=1/C3H4O4.K/c4-2(5)1-3(6)7;/h1H2,(H,4,5)(H,6,7);/q;+1/p-1

Upstream product

• 617-48-1 malic acid 
• 105-53-3 diethyl malonate 
• 88-14-2 2-furanoic acid 
• 124-38-9 carbon dioxide 
• 141-82-2 malonic acid 
• 108-59-8 malonic acid dimethyl ester 

Downstream Products

• 127-08-2 potassium acetate 
• 810677-19-1 malonic acid bis(p-methoxybenzyl) ester 
• 33878-10-3 barium malonate 

Relevant academic research and scientific papers

PROCESS FOR THE SYNTHESIS OF AROMATIC DICARBOXYLIC ACIDS

A method is provided for synthesizing an aromatic carboxylic acid compound comprising providing an aromatic compound or an aromatic compound with at least one carboxylic group; providing a metal hydroxide and at least one carboxylate to produce a mixture; and adding carbon dioxide to the mixture under pressures from about atmospheric to 1000 psig and sufficient heat for a time sufficient to produce aromatic carboxylic acid compounds. The aromatic carboxylic acid compounds may include terephthalic acid, naphthalic acid, thiophene dicarboxylic acid, pyridine dicarboxylic acid, carbazole dicarboxylic acid, and dibenzothiophene dicarboxylic acid.

Noncovalent catch and release of carboxylates in water

Association constants of a bis-(acetylguanidinium)ferrocene dication to various (di)carboxylates were determined through UV-vis titrations. Association constant values greater than 104 M-1 were determined for both phthalate and maleate carboxylates to the bis-(acetylguanidinium)ferrocene salt in pure water. Density functional theory computations of the binding enthalpy of the rigid carboxylates for these complexes agree well with the experimentally determined association constants. Catch and release competitive binding experiments were done by NMR for the cation-carboxylate ion-pair complexes with cucurbit[7]uril, and they show dissociation of the ion-pair complex upon addition of cucurbit[7]uril and release of the free (di)carboxylate.

Behavior of Np(V) malonates under hydrothermal conditions

Two new Np(V) malonates, LiNpO2L·2H2O and KNpO2L, where L = CH2(COO)2, were synthesized, and their characteristics were studied. Similar to their chemical analogs with Na+, NH4+, and Cs+ ions in the outer sphere, these compounds transform into well crystallized neptunyl(V) compounds of the MNpO2CO3· nH2O type on heating in sealed ampules beneath the layer of the corresponding alkali metal or ammonium malonate solution at a temperature higher than 140°C. Under hydrothermal conditions (NpO2)2L·4H2O is not converted to lower hydrates, and above 135°C it decomposes to form a dark gray amorphous product.

Tetrasubstituted imidazoles

A compound of the formula STR1 wherein the substituents are defined in the specification useful for the treatment of cardiovascular disorders.

Effect of Trace Impurities on a Bifurcation Structure in the Belousov-Zhabotinski Reaction and Preparation of High-Purity Malonic Acid

We have found that impurities on the ppm level in malonic acid are sufficient to alter dramatically a sequence of bifurcations in the Belousov-Zhabotinskii (BZ) reaction.Samples of malonic acid from 15 vendors were tested, and each was found to contain one or more of the following impurities that effect the reaction dynamics: iron, paraformaldehyde, ethanol, methanol, ethyl ester, and methyl ester.We describe a straightforward procedure for purifying malonic acid.Reproducible bifurcation structures can only be observed with the highly purified malonic acid.Measurements with varying amounts of the above-mentioned impurities added to purified malonic acid show the striking effect of impurities on the dynamics of the BZ reaction.