Interpretation:
The equations for the preparation of each of the given compounds from anisole and any necessary organic or inorganic reagents are to be written.
Concept introduction:
All activating substituents attached to an
Halogen substituents are ortho and para-directing but slightly deactivating.
Strongly deactivating substituents are meta directing.
If a benzene ring is attached to two or more substituents, the site of further substitution is decided by the combined effect of its substituents.
The regioselectivity is determined by the more activating substituent.
Friedel Craft alkylation takes place using an alkyl chloride in the presence of aluminum chloride.
Sulfonation of benzene is carried out using sulfur trioxide in the presence of sulfuric acid.
Halogenation of benzene is carried out using a suitable halogen in the presence of a Lewis acid.
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
Organic Chemistry - Standalone book
- Write equations showing how 2-phenylethanol could be prepared from each of the following starting materials:(a) Bromobenzene (c) 2-Phenylethanal (C6H5CH2CHO)(b) Styrene (d) 2-Phenylethanoic acid (C6H5CH2CO2H)arrow_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_forwardProvide reagentsarrow_forward
- (d) How would you prepare any one of the following compounds from benzene? More than one step may be involved in each case. (a) (b) OH Br m-Bromo benzoic acid Phenyl acetic acidarrow_forwardPredict the major products formed when benzoyl chloride (PhCOCl) reacts with the following reagents.(a) ethanol (b) sodium acetate (c) anilinearrow_forward(a) How will you obtain the following :(i) Benzaldehyde from Phenol (ii) Benzoic acid from Aniline(b) Give reasons :(i) Aldehydes are more reactive than ketones towards nucleophilic reagents.(ii) Electrophilic substitution in benzoic acid takes place at meta position.(iii) Carboxylic acids do not give the characteristic reactions of carbonyl group.arrow_forward
- Syntheses of each of the following compounds have been reported in the chemical literature. Using the indicated starting material and any necessary organic or inorganic reagents, describe short sequences of reactions that would be appropriate for each transformation. (a) 1,1,5-Trimethylcyclononane from 5,5-dimethylcyclononanonearrow_forwardApply retrosynthetic analysis to guide the preparation of each of the following compounds from the indicated starting material, then write out the synthesis showing the necessary reagents. (a) 1-Propanol from 2-propanol (b) 1,2-Dibromopropane from 2-bromopropane (c) 1-Bromo-2-propanol from 2-propanol (d) 1-Bromo-2-methyl-2-propanol from tert-butyl bromide (e) 1,2-Epoxypropane from 2-propanol (f) tert-Butyl alcohol from isobutyl alcohol (g) tert-Butyl iodide from isobutyl iodide (h) trans-2-Chlorocyclohexanol from cyclohexyl chloridearrow_forwardThe hydrocarbon fluorene was treated with potassium t-butoxide in an acid-base reaction, giving the fluorenide anion and t-butyl alcohol. (a) Which way does the equilibrium lie, and by how much? b) What is the proportion of the fluorenide anion to fluorene? (c) Why is fluorene so highly acidic, considering the pKa of an average alkane is above 50?arrow_forward
- (a) Propose a reasonable synthesis for the formation of nonane from CH3CH2CH2I and any other organic/inorganic reagent. (b) Suggest three (3) different Grignard reactions leading to 2-phenyl-2-butanol.arrow_forward(a) Account for the following :(i) Propanal is more reactive than propanone towards nucleophilic reagents.(ii) Electrophilic substitution in benzoic acid takes place at meta position.(iii) Carboxylic acids do not give characteristic reactions of carbonyl group.(b) Give simple chemical test to distinguish between the following pairs of compounds:(i) Acetophenone and benzaldehyde(ii) Benzoic acid and ethylbenzoate.arrow_forwardThe following questions concern ethyl (2-oxocyclohexane)carboxylate.(a) Write a chemical equation showing how you could prepare ethyl (2-oxocyclohexane)-carboxylate by a Dieckmann cyclization.(b) Write a chemical equation showing how you could prepare ethyl (2-oxocyclohexane)-carboxylate by acylation of a ketone.(c) Write structural formulas for the two most stable enol forms of ethyl (2-oxocyclohexane)carboxylate.(d) Write the three most stable resonance contributors to the most stable enolate derived from ethyl (2-oxocyclohexane)carboxylate.(e) Show how you could use ethyl (2-oxocyclohexane)carboxylate to prepare 2-methylcyclohexanone.(f) Give the structure of the product formed on treatment of ethyl (2-oxocyclohexane)-carboxylate with acrolein (H2C=CHCH=O) in ethanol in the presence of sodium ethoxidearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning