Ethers online quiz
Carboxylic acids A carbonyl group in which the carbon is bound to a hydroxyl group OH and another carbon. Nitriles A carbon-nitrogen triple bond. Aziridines A three atom ring containing one atom of nitrogen and two of carbon in which all atoms are sp3-hybridized. Nitro groups A nitrogen atom bound to two oxygen atoms, in which one bond is single and the other is double. Imines A carbon-nitrogen double bond in which the carbon atom is bound to two other carbon atoms. Amides A carbonyl group in which the carbon atom is bound to an amino group.
Sulfur-containing A thiol group SH bound to a sp3-hybridized carbon. Sulfides An sulfur atom between two sp3-hybridized carbons. Thioesters A carbonyl group in which the carbon atom is bound to a sulfide group and another carbon atom. Benzene derivatives One to six substituents on benzene ring.
An example is presented on the right. Which of the following properties makes ether a more preferable solvent than alcohol? Answer: Lower boiling point Ether's low boiling point simplifies evaporation. Alcohols have higher boiling points because of the hydrogen bonding. Can ethers dissolve both polar and non-polar compounds? Answer: Yes Generally, polar solvents dissolve polar compounds while non-polar solvents dissolve non-polar compounds.
Ethers are special because they dissolve both polar and non-polar compounds. The Williamson ether synthesis is one of several ways to synthesize ethers. What type of mechanism is involved in this synthesis? Answer: SN2 Nucleophilic bimolecular substitution The Williamson ether synthesis is the most reliable and versatile methods to synthesize ethers, compared to the less-preferred alkoxymercuration-demercuration and bimolecular dehydration methods.
It involves SN2 nucleophilic bimolecular substitution mechanism, where the ionized alkoxide ion will attack the unhindered primary alkyl halide. An epoxide is a cyclic ether with 3 atoms on its ring 2 carbons and 1 oxygen. What is the alternative name for epoxides? Answer: Oxiranes Epoxides are named based on their parent compound, oxiranes. We can react alkene with acid to produce epoxides. Which of the following acids is suitable for this purpose?
MCPBA will oxidize the alkene's double bond to form epoxides. If we use strong acid, the epoxide's ring will open up and we will get glycols and not epoxides. Epoxides can react under both acidic and basic conditions.
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