4. The rearrangement reaction shown below was discovered in 1860. (a) Draw a mechanism for this transformation. Draw in lone pairs, use curved arrows to sl movement of electrons, and indicate the formal charge on all charged atoms. (b) Explain why this rearrangement occurs. (Hint: What type of intermediate forms?) но он H2SO4 (conc.) Heat (c) The same type of reaction was used to accomplish the transformation below. Draw the mechanism for this transformation as well. OH H2SO4, heat но
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.
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