File:Acetal_general_structure.svg · Wikimedia Commons · See Wikimedia Commons
Research
401,503 papers- Bicyclic acetals: biological relevance, scaffold analysis, and applications in diversity-oriented synthesis.Organic & biomolecular chemistry · 2019
- Cyclic Acetals as Novel Long-Lasting Mosquito Repellents.Journal of agricultural and food chemistry · 2023
- Oxylipin vanillyl acetals from Solanum lyratum.Fitoterapia · 2020
- Regioselective reductive openings of 4,6-benzylidene acetals: synthetic and mechanistic aspects.Carbohydrate research · 2011
- Acetals as pH-sensitive linkages for drug delivery.Bioconjugate chemistry · 2004
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Wikidata facts
Show 2 more facts
- Commons category
- Acetals
- general formula
- (R³)(R⁴)C(OR¹)(OR²), R¹≠H, R²≠H
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Article
10 sectionsContents
- Acetalization and ketalization
- Examples
- Sugars
- Chiral derivatives
- Formaldehyde and acetaldehyde
- Unusual acetals
- Flavors and fragrances
- Related compounds
- See also
- References
thumb|Generic structure of acetals
In organic chemistry, an acetal is a functional group with the connectivity . Here, the R groups can be organic fragments (a carbon atom, with arbitrary other atoms attached to that) or hydrogen, while the R' groups must be organic fragments not hydrogen. The two R' groups can be equivalent to each other (a "symmetric acetal") or not (a "mixed acetal"). An acetal is formed from and convertible to two alcohol molecules and an aldehyde or ketone, but acetals have substantially different chemical stability and reactivity as compared to the analogous carbonyl compounds. The central carbon atom has four bonds to it, and is therefore saturated and has tetrahedral geometry.