The following substances can be prepared by a nucleophilic addition reaction between an aldehyde or ketone and a nucleophile. Identify the reactants from which they were prepared. If the substance is an acetal, identify the carbonyl compound and the alcohol; if it is an imine or enamine, identify the carbonyl compound and the amine. You do not have to consider stereochemistry. In cases where there is more than one answer, just give one. Use Grignard reagents when an organometallic reagent is required. Draw the Grignard reagent as a covalent magnesium bromide.
Reactions of Ethers
Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.
Epoxides
Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.
Williamson Ether Synthesis
An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.
The following substances can be prepared by a nucleophilic addition reaction between an
and a nucleophile. Identify the reactants from which they were prepared. If the substance is an acetal, identify
the carbonyl compound and the alcohol; if it is an imine or enamine, identify the carbonyl compound and the
amine. You do not have to consider stereochemistry. In cases where there is more than one answer, just give
one. Use Grignard reagents when an organometallic reagent is required. Draw the Grignard reagent as a
covalent magnesium bromide.
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