| 释义 |
aldol Chem.|ˈældɒl|
[f. aldehyde) + (alcohol; see -ol.]
A clear viscid neutral liquid of composition CH3.CH(OH).CH2.CHO, polymerous with acetyl aldehyde; so called because regarded by Wurz as intermediate in constitution and properties between aldehyde and alcohol; previously called acraldehyde.
1874Watts Dict. Chem. 2nd Supp. 38 Aldol possesses the reducing powers of the aldehydes. 1878― 3rd Supp. 54 Aldol..is the aldehyde of butene-glycol.
Add:2. Special Comb. aldol condensation, reaction, a condensation reaction between two carbonyl molecules to yield a single molecule with one hydroxyl and one carbonyl group (exemplified by the conversion of acetaldehyde to aldol).
1901Jrnl. Chem. Soc. LXXX. 450 This reaction takes place so much more slowly than the *aldol condensation that the former is practically entirely concealed. 1936W. J. Hickinbottom Reactions Org. Compounds iv. 139 The simplest type of reaction is that exemplified by the *aldol reaction. 1968A. White et al. Princ. Biochem. (ed. 4) xviii. 397 This enzyme can catalyze an aldol condensation between dihydroxyacetone phosphate and a wide variety of aldehydes. 1988L. Stryer Biochem. (ed. 3) xi. 271 The aldehyde derivatives of two lysine residues undergo an aldol condensation. 1992Organometallics XI. 350 Cerium enolates..undergo aldol reactions with ketones or sterically hindered aldehydes. |