Recall that the Friedel-Crafts alkylation reaction forms a new C-C bond between an aromatic ring and an alkyl halide, in the presence of an appropriate Lewis Acid. Which of the following (one or more than one) DO work well in Friedel-Crafts alkylation reactions? ப n D NO2 CI as the alkyl halide for the reaction OH CI CI ta
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- Which reagent is the nucleophile in the esterification reaction shown below? O || С-ОН Benzoic Acid methanol methyl benzoate benzoic acid sulfuric acid + CH₂-OH Methanol H₂SO - H₂O O || C-O-CH3 Methyl benzoateProvide a complete step-by-step mechanism for the following reaction. ОН Conc. H2SO4 heatThis reaction is an example of conjugate addition of a nucleophile to an a,ß-unsaturated carbonyl. CНз CHз Нао ОН Draw the two resonance structures of the enolate anion intermediate for this reaction.
- Which of the following is a weak nucleophile? OH- H2O CH3O-U U U CI Recall that the Friedel-Crafts alkylation reaction forms a new C-C bond between an aromatic ring and an alkyl halide, in the presence of an appropriate Lewis Acid. Which of the following (one or more than one) DO work well in Friedel-Crafts alkylation reactions? OH CI +a NO2 CI as the alkyl halide for the reactionDraw the major product(s) when the following molecule is reacted with excess NaOEt in EtOH, followed by aqueous acidic work-up. CH;CH,OĊCH(CH,)¿COCH,CH3 CHa
- Which atom in the following molecule is considered the electrophilic site, i.e. where would a nucleophile attack? O The O atom in the carbonyl (C=O) group O the Catom in the carbonly (C=O) group O Any H atom O AC atom not in the carbonyl (C=O) groupWhich of the following statements best describes the general reactivity of alkynes? O An alkyne reacts as an electrophile and is therefore electron poor. O An alkyne reacts as an electrophile and is therefore electron rich. O An alkyne reacts as a nucleophile and is therefore electron poor. O An alkyne reacts as a nucleophile and is therefore electron rich. O Alkynes fail to undergo electrophilic addition reactions, unlike alkenes.Draw the ALL of the E2 organic product formed when the structure shown below undergoes dehydrohalogenation in alcoholic KOH with heat. Which of the products is formed the most?