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In organic chemistry, acyloins or α-hydroxy ketones [1] are a class of organic compounds of the general form R−C(O)CH(OH)−R', composed of a hydroxy group (−OH) adjacent to a ketone group (>C=O). The name acyloin is derived from the fact that they are formally derived from reductive coupling of carboxylic acyl groups (−C(=O)OH). [1]
Alpha- and beta-hydroxy ketones. In organic chemistry, a hydroxy ketone (often referred to simply as a ketol) is a functional group consisting of a ketone (>C=O) flanked by a hydroxyl group (−OH). Chemicals in this group can be classified by the position of the hydroxyl relative to the ketone.
It is an α-hydroxyketone, also called a ketol, and is the simplest hydroxy ketone structure. It is a colorless, distillable liquid. It is a colorless, distillable liquid. Preparation
The net reaction between an aldehyde (or an alpha-hydroxy-ketone) and the copper(II) ions in Benedict's solution may be written as: RCHO + 2 Cu 2+ + 5 OH − → RCOO − + Cu 2 O + 3 H 2 O. The hydroxide ions in the equation forms when sodium carbonate dissolves in water. With the citrate included, the reaction becomes:
Alpha hydroxy carboxylic acids, or α-hydroxy carboxylic acids (AHAs), are a group of carboxylic acids featuring a hydroxy group located one carbon atom away from the acid group. This structural aspect distinguishes them from beta hydroxy acids , where the functional groups are separated by two carbon atoms. [ 1 ]
In organic chemistry, a ketone / ˈ k iː t oʊ n / is an organic compound with the structure R−C(=O)−R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group −C(=O)− (a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' are methyl), with the formula (CH 3) 2 CO ...
In organic chemistry, keto acids or ketoacids (also called oxo acids or oxoacids) are organic compounds that contain a carboxylic acid group (−COOH) and a ketone group (>C=O). [1] In several cases, the keto group is hydrated. The alpha-keto acids are especially important in biology as they are involved in the Krebs citric acid cycle and in ...
Alpha-hydroxy ketones (1 C, 5 P) B. Beta-hydroxy ketones (2 C, 2 P) H. Hydroxyquinones (5 C, 2 P) T. Tropolones (11 P) Pages in category "Hydroxyketones"