Concept explainers
Interpretation:
The given compounds are to be synthesized from benzene.
Concept introduction:
Electrophilic substitution reaction in
The mechanism of electrophilic aromatic substitution involves the attack of electrophile, followed by the removal of hydrogen ion.
Benzene and substituted benzene undergo electrophilic substitution reactions in the presence of an electrophilic reagent. The electrophilic substitution on the substituted benzene occurs on the basis of the nature of substituents present on the benzene ring. If the substituted group is ortho-para directing, then ortho and para isomers are formed as product, and if the group is meta directing, then meta product is formed.
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Organic Chemistry
- Starting with toluene, outline a synthesis of each of the following: (a) o-nitrobenzoic acid (b) m-nitrobenzoic acid (c) 3-chlorobenzoic acid (d) p-bromobenzoic acidarrow_forwardWrite a structural formula for each of the following compounds: (a) m-Chlorobenzoyl chloride (b) Trifluoroacetic anhydride (c) cis-1,2-Cyclopropanedicarboxylic anhydride (d) Ethyl cycloheptanecarboxylate (e) 1-Phenylethyl acetate (f) 2-Phenylethyl acetate (g) p-Ethylbenzamide (h) N-Ethylbenzamide (i) 2-Methylhexanenitrilearrow_forwardWrite a balanced chemical equation for each of the following reactions: (a) Phenol + sodium hydroxide (b) Product of part (a) + ethyl bromide (c) Product of part (a) + butyl p-toluenesulfonate (d) Product of part (a) + acetic anhydride (e) o-Cresol + benzoyl chloride (f) m-Cresol + ethylene oxide (g) 2,6-Dichlorophenol + bromine (h) p-Cresol + excess aqueous bromine (i) Isopropyl phenyl ether + excess hydrogen bromide + heatarrow_forward
- (b) State the reagents needed to convert benzoic acid into the following compounds. (i) C6H§COCI (ii) C,H$CH2OH (iii) C6H$CONHCH3arrow_forwardProvide reagentsarrow_forwardIn an aqueous solution containing sodium bicarbonate, aniline reacts quickly withbromine to give 2,4,6-tribromoaniline. Nitration of aniline requires very strong conditions,however, and the yields (mostly m-nitroaniline) are poor.(a) What conditions are used for nitration, and what form of aniline is present under theseconditions?arrow_forward
- (a) How will you convert the following :(i) Propanone to Propan-2-ol (ii) Ethanal to 2-hydroxy propanoic acid(iii) Toluene to benzoic acid(b) Give simple chemical test to distinguish between :(i) Pentan-2-one and Pentan-3-one (ii) Ethanal and Propanalarrow_forwardRank the compounds in each group according to their reactivity towardelectrophilic substitution.(a) Chlorobenzene, o-dichlorobenzene, benzene(b) p-Bromonitrobenzene , nitrobenzene, phenol(c) Fluorobenzene, benzaldehyde, a-xylene(d) Benzonitrile, p-methylbenzonitr ile,p-methoxybenzonitrilearrow_forward(a) How will you convert:(i) Benzene to acetophenone (ii) Propanone to 2-Methylpropan-2-ol(b) Give reasons :(i) Electrophilic substitution in benzoic acid takes place at meta position.(ii) Carboxylic acids are higher boiling liquids than aldehydes, ketones and alcohols of comparable molecular masses.(iii) Propanal is more reactive than propanone in nucleophilic addition reactions.arrow_forward
- Starting exactly with any acid chloride with exactly with 5 carbon atoms, and using appropriate reagents outline the synthesis of the following molecules: (a) 2,6-dimethyl-4-heptanone (b) 4-propyl-4-octanolarrow_forwardPredict the major products formed when benzoyl chloride (PhCOCl) reacts with the following reagents.(a) ethanol (b) sodium acetate (c) anilinearrow_forwardPredict the major products of the following reactions: (a) Nitration of bromobenzene (b) Bromination of nitrobenzene (c) Chlorination of phenol (d) Bromination of anilinearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning