a) Preparation of aniline from benzene
Interpretation:
How to prepare aniline starting from benzene is to be shown.
Concept introduction:
The steps involved in preparing aniline from benzene are i) Nitration of benzene ii) reduction of nitrobenzene.
b) Preparation of aniline from benzamide
Interpretation:
How to prepare aniline starting from benzamide is to be shown.
Concept introduction:
In Hofmann degradation reaction amides when treated with Br2/NaOH are converted into
c) Preparation of aniline from toluene
Interpretation:
How to prepare aniline starting from toluene is to be shown.
Concept introduction:
The steps involved in preparing aniline from toluene are i)Oxidation of methyl group ii) Conversion to acid chloride iii) Conversion in to an amide iv) Hofmann degradation of the amide.
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Chapter 24 Solutions
Organic Chemistry
- Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.(a) PhMgBr, then H3O+ (b) Tollens reagent (c) semicarbazide and weak acid(d) excess ethanol and acid (e) propane-1,3-diol, H+ (f) zinc amalgam and dilute hydrochloric acidarrow_forwardPredict the products formed when cyclohexanone reacts with the following reagents.(a) CH3NH2, Harrow_forward(a) Draw the structure of the hemiacetal formed from one mole of benzaldehyde and one mole of ethanol. (b) Draw the structure of the acetal formed from one mole of benzaldehyde and two moles of ethanol. (c) Draw the structure of 2-methoxy-2-butanol. What compounds could you prepare this from?arrow_forward
- How could you convert butanoic acid into the following compounds? Write each step showing the reagents needed. (a) 1-Butanol (b) 1-Bromobutane (c) 1-Butenearrow_forwardWrite down the reaction of acetaldehyde with the following.(b) 2,4-dinitrophenylhydrazine (c) I2 / NaOHarrow_forwardWrite down the reaction of acetaldehyde with the following. (a) Tollens' reagent (b) 2,4-dinitrophenylhydrazine (c) I2 / NaOHarrow_forward
- Draw line structures of the following compounds and the product you would obtain from the reduction of each.(a) Isopropyl methyl ketone (b) p-Hydroxybenzaldehyde(c) 2-Methylcyclopentanonearrow_forwardPlease draw the skeletal formula of the following compounds: (A) Isobutyraldehyde (B) α-Ethyl-γ-methoxycaproaldehyde (C) 6-Hydroxyhexanal (D) 2,4-Pentanedione (E)3-Cyano-7-oxoheptanoic acidarrow_forwardDimethyl disulfide, CH,S–SCH3, found in the vaginal secretions of female hamsters, acts as a sexual attractant for the male hamster. Write an equation for its synthesis from methanethiol.arrow_forward
- Predict the major products formed when benzoyl chloride (PhCOCl) reacts with the following reagents.(a) ethanoarrow_forward(a) Draw the structure of the hemiacetal formed from one mole of benzaldehyde and one mole of ethanol. (b) Draw the structure of the acetal formed from one mole of benzaldehyde and two moles of ethanol. (c) Draw the structure of 2-methoxy-2-butanol. What compounds could you prepare this from? (d) Draw the structure of 3-methoxyl-2-butanol. What functional groups are present? Is this an acetal, a hemiacetal, or neither? Explain. (e) Identify the functional groups in the molecules shown below. Circle any acetals or hemiacetal, and identify which they are. 0-arrow_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