I. Synthesize the corresponding alkyne from the given alkene. Show the steps (no need for the mechanism like transfer of electrons- just the arrowed steps) and the reagents needed in the steps CH3 -CH-CH=CH, CH3 II. Subject the resulting alkyne above to the following reactions (show also the steps and the reagents needed in the steps): a. hydration with mercury as catalyst b. oxidation with potassium permanganate c. hydrohalogenation with HCI (only one HCI is given) d. hydration with borane e. halogenation with bromine (2 molecules of bromine are given) f. hydrogenation with Lindlar catalyst g. hydrogenation with Li/NH3 h. hydrogenation with Pt/C III. If the above alkyne product in I. is subjected to acetylide formation followed by nucleophilic substitution by a primary alkyl halide, show how the following product is formed. CH3 CH3 CH3 -CH-C C-CH2 CH3- -CH-CH
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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