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 (ăl′dôl′, -dōl′, -dŏl′)
1. A thick, colorless to pale yellow liquid, C4H8O2, obtained from acetaldehyde and used in perfumery and as a solvent.
2. An organic compound containing an alcohol and a carbonyl group, especially a beta-hydroxy aldehyde.
3. A chemical reaction that produces a beta-hydroxy carbonyl compound as an intermediate or final product.


1. (Elements & Compounds) a colourless or yellowish oily liquid, miscible with water, used in the manufacture of rubber accelerators, as an organic solvent, in perfume, and as a hypnotic and sedative. Formula: CH3CHOHCH2CHO. Systematic name: 3-hydroxybutanal
2. (Elements & Compounds) any organic compound containing the functional group -CHOHCH2CHO
3. (Chemistry) (modifier) consisting of, containing, or concerned with the group -CHOHCH2CHO: aldol group or radical; aldol reaction.
[C19: from ald(ehyde) + -ol1]


(ˈæl dɔl, -dɒl)

a colorless, syrupy, water-soluble liquid, C4H8O2, used chiefly in the manufacture of rubber vulcanizers and accelerators, and in perfumery.
[1870–75; ald(ehyde) + -ol1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.aldol - an oily colorless liquid obtained by the condensation of two molecules of acetaldehydealdol - an oily colorless liquid obtained by the condensation of two molecules of acetaldehyde; contains an alcohol group (-OH) and an aldehyde group (-CHO)
acetaldol - unsaturated aldol
organic compound - any compound of carbon and another element or a radical
References in periodicals archive ?
Demirel, Synthesis of Novel Chiral Schiff-Base Ligands and Their Application in Asymmetric Nitro Aldol (Henry) Reaction, Tetrahedron Asymmetry., 18, 1129 (2007).
The grinding mode for the solidstate reactions has earlier been employed for Grignard reaction, [15], Reformatsky reaction [16], aldol condensation [17], Dieckmann condensation [18], Knoevenagel condensation [19], reduction [20] and other reactions [21].
Following this, the hydroxyl-aldehyde undergoes a cross aldol reaction with Ph* ketone.
It can also be synthesized by aldol condensation of benzaldehyde and acetaldehyde or from cinnamyl alcohol.
Ketone aldehyde resins are manufactured by an aldol condensation of a ketone with an aldehyde (3) (Figure 3).
The aldol condensation reaction of n-saturated aldehyde in the presence of phosphatidyl ethanolamine.
Initially, midazolam (Dormicum ampoules, Roche, Istanbul, Turkey) was given at a dose of 0.05 mg/kg and meperidine (Aldol bulbs, Liba, Istanbul, Turkey) was given at a dose of 0.3 mg/kg.
These shared reactions include aldol additions, which bring new source molecules into the cycles, as well as beta and oxidative decarboxylations, which release the molecules as carbon dioxide (CO2) which is an integral gas to early atmosphere formation.
"BF3.Et2O-induced stereo selective aldol reaction with benzaldehyde, and steroid sapogenins and its application to a convenient synthesis of dinorcholanic lactones".
Hu, "Nanoparticle based on poly(ionic liquid) as an efficient solid immobilization catalyst for aldol reaction and multicomponent reaction in water," ACS Applied Materials & Interfaces, vol.
Several precursors and pathways have been proposed for the occurrence of sotolon in wines: by peroxidation of acetaldehyde [28], thermally produced from intermediates generated from the Maillard reaction such as pyruvic and ketoglutaric (via glutamic acid) acids [29], by enzymatic or chemical deamination of threonine followed by the aldol condensation between [alpha]-ketobutyric acid and acetaldehyde [30, 31], and by oxidative degradation of ascorbic acid in the presence of ethanol [32].