Ad
related to: organic ketonic decarboxylation formula
Search results
Results from the WOW.Com Content Network
Ketonic decarboxylation (also known as decarboxylative ketonization) is a type of organic reaction and a decarboxylation converting two equivalents of a carboxylic acid (R−C(=O)OH) to a symmetric ketone (R 2 C=O) by the application of heat.
The presence of the keto group at the beta position allows them to easily undergo thermal decarboxylation. [7] Gamma-keto acids, Gamma-ketoacids, or 4-oxoacids have the ketone group at the third carbon from the carboxylic acid. Levulinic acid is an example. Keto acids appear in a wide variety of anabolic pathways in metabolism.
Decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon dioxide (CO 2). Usually, decarboxylation refers to a reaction of carboxylic acids , removing a carbon atom from a carbon chain.
Phenylacetic acid undergoes ketonic decarboxylation to form ketones. [7] It can be condensed with itself to form dibenzyl ketone , or with a large excess of another carboxylic acid (in the form of an acid anhydride ), such as with acetic anhydride to form phenylacetone .
It can also be prepared by combining ethylene, CO, and H 2. [4] When the reaction is catalyzed by dicobalt octacarbonyl, water can be used as a source of hydrogen.A proposed intermediate is the ethylene-propionyl species [CH 3 C(O)Co(CO) 3 (ethylene)] which undergoes a migratory insertion to form [CH 3 COCH 2 CH 2 Co(CO) 3].
Dibenzyl ketone is prepared by ketonic decarboxylation of phenylacetic acid. One method is where phenylacetic acid is reacted with acetic anhydride and anhydrous potassium acetate and refluxed for two hours at 140−150 °C. The mixture is distilled slowly so that the distillate is mostly acetic acid. Carbon dioxide is released in this reaction ...
Cyclopentanone is the organic compound with the formula (CH 2) 4 CO. ... Preparation. Ketonic decarboxylation of adipic acid gives cyclopentanone.
Cyclododecanone is an organic compound with the formula (CH 2) 11 CO. ... It was first obtained by Ružička et al. in 1926 by ketonic decarboxylation. [2]
Ad
related to: organic ketonic decarboxylation formula