What is the major product of dehydration of cyclohexanol and that for 2-butanol and 3-methyl-2- pentanol? Draw the structure of the corresponding alkenes. Hint: follow Zaitsev's rule, carbon adjacent to C-OH poorer in H loses H, and the product is the most substituted alkene; that is the alkene with higher number of carbons attached directly to the Carbon-carbon double bond... HO CH₂ CH₂ X= CH₂ H₂ 2,3-dimethyl-3-hexanol H₂C. CH₂ OH CHCH₂CH₂CH₂ CH₂ Dehydration> OH CH3 Dehydration Lose water strong acid catalyst 3 and heat
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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