(a)
Interpretation:
The order of relative reactivities of the given compounds in
Concept introduction:
The
(b)
Interpretation:
The order of relative reactivities of the given compounds in
Concept introduction:
The
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Organic Chemistry
- Write the formula of reagents used in the following reactions:(i) Bromination of phenol to 2,4,6-tribromophenol(ii) Hydroboration of propene and then oxidation to propanol.(b) Arrange the following compound groups in the increasing order of their property indicated:(i) p-nitrophenol, ethanol, phenol (acidic character)(ii) Propanol, Propane, Propanal (boiling point)arrow_forward(b) Your task is to prepare styrene by one of the following reactions. Which reaction would you choose to give the better yield of styrene? Explain your answer. Br KOH EtOH, A (ii) KOH EtOH, Aarrow_forward(b) Consider the following reaction scheme and answer the questions that follow. (i) (ii) (iv) 1 EtOH, 40 °C 2 Would compound 2 form under the given reaction conditions? Give reason(s) for your answer to question (i) above. OEt Propose a mechanism that would lead to the expected product for the above reaction scheme.arrow_forward
- 2B Suggest a short synthetic route for the preparation of compound D from compound C OH Br COOH C D Note: Apart from compound C, you can also use organic reagents with up to 1 C atom. The number of arrows in the figure above does not necessarily correspond to the number of steps.arrow_forward(b) Predict the suitable solvent (H2O or CH3COCH3) to increase the reaction of bromopropane (CH3CH2CH2B1) with sodium hydroxide (NaOH). Two reactions are shown below: NaOH, 55 °C CH;CH,CH,Br CH;CH,CH,OH + NaBr H,O (i) NaOH, 55 °C CH;CH,CH,Br CH;CH,CH,OH NaBr H,C CH (ii)arrow_forward(3) (a) Predict the product of the reaction between benzoyl chloride and any one of the following reagents. (i) Li(Et),Cu in ether (ii) BuMgBr in ether, then H3O+arrow_forward
- 3. Outline a synthetic scheme for the preparation of the compounds A from the suggested starting material by the suggested method. Make sure to clearly indicate all reagents needed to perform each step of the synthetic scheme. (a) OH O=S=O Br A (b) H₂N. (c) HO3S. Br Br A A 1 Brarrow_forward(b) Predict the suitable solvent (H2O or CH3COCH:) to increase the reaction of bromopropane (CH3CH2CH2B1) with sodium hydroxide (NaOH). Two reactions are shown below: NaOH, 55 °C CH;CH,CH,Br CH;CH,CH,OH + + NaBr H,O (i) NaOH, 55 °C CH;CH,CH,Br CH;CH,CH,OH + NaBr (ii) H,C- CH3arrow_forward(a) Although phenoxide ion has more number of resonating structures than carboxylate ion, carboxylic acid is a stronger acid than phenol. Give two reasons.(b) How will you bring about the following converstions?(i) Propanone to propane (ii) Benzoyl chloride to benzaldehyde(iii) Ethanal to but-2-enalarrow_forward
- (c) Arrange the following compounds in order of increasing acidity, and explain the reasons for your choice of order: phenol, cyclohexanol, 2-fluorocyclohexanol, 2-fluorophenol.arrow_forward(a) The Friedel-Crafts reaction of benzene with 2-chloro-3-methylbutane in the presence of AlCl3 occurs with a carbocation rearrangement. Give mechanistic explanation and the product formed. (b) Predict the product(s) will be formed from the following reactions: (i) Bromination of p-methylbenzoic acid (ii) Sulphonation of m-bromoanisole (iii) Friedel-craft acylation of o-bromonitrobenzenearrow_forward(a) Give chemical tests to distinguish between the following pairs of compounds :(i) Pentan-2-ol and Pentan-3-ol (ii) Methanol and Phenol(b) o-nitro phenol is more acidic than o-methoxy phenol. Explain why.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning