Concept explainers
(a)
Interpretation:
The Claisen condensation product formed from the reaction of ethyl phenylacetate with one equivalent
Concept introduction:
The Claisen condensation reaction in which two esters or one ester and a carbonyl compound react together to form
(b)
Interpretation:
The Claisen condensation product formed from the reaction of ethyl butyrate with one equivalent
Concept introduction:
The Claisen condensation reaction in which two esters or one ester and a carbonyl compound react together to form
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- Write chemical equations expressing each of the following: (a) Preparation of o-nitrophenyl acetate by sulfuric acid catalysis of the reaction between a phenol and an acid anhydride. (b) Esterification of 2-naphthol with acetic anhydride in aqueous sodium hydroxide (c) Reaction of phenol with benzoyl chloridearrow_forward(a) Explain the mechanism of a nucleophilic attack on the carbonyl group of an aldehyde or a ketone.(b) An organic compound (A) (molecular formula CgH16Q2) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid also produced (B). On dehydration (C) gives but-1-ene. Write the equations for the reactions involved.arrow_forwardExplain the following statements. You must use chemical equations to justify your explanation. (ii) (I) Phenol is more acidic than cyclohexanol.arrow_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_forwardThe odor of ripe bananas and many other fruits is due to the presence of esters. For example: Banana oil (isopentyl acetate) (a) Write the name (common or IUPAC) of the ester responsible for the fragrance of the following: pineapple, orange, apple, peach, & lavender (b) Choose one fragrant from (a) and name the alcohol and the carboxylic acid needed to synthesize this ester. (c) Show the detailed mechanism of the Fischer Esterification reaction that will be involved in the synthesis of the fragrant you have chosen in part (a).arrow_forwardPredict the major products formed when benzoyl chloride (PhCOCl) reacts with the following reagents.(a) ethanol (b) sodium acetate (c) anilinearrow_forward
- Arrange each group of compounds in order of increasing acidity.(c) benzoic acid, o-nitrobenzoic acid, m-nitrobenzoic acidarrow_forwardWhen methanitrobenzoic acid is reacted with bromomethane in the presence of Lewis acids, which product occur.arrow_forwardArrange each group of compounds in order of increasing basicity.(a) CH3COO-, ClCH2COO-, and PhO- (b) sodium acetylide, sodium amide, and sodium acetate(c) sodium benzoate, sodium ethoxide, and sodium phenoxide (d) pyridine, sodium ethoxide, and sodium acetatearrow_forward
- Predict the products obtained from the reaction of triolein with the following reagents.(a) NaOH in waterarrow_forwardArrange each group of compounds in order of increasing acidity.(a) phenol, ethanol, acetic acidarrow_forward(b) Suggest a reasonable biosynthesis for the naturally occurring alkaloid coniine (isolated from hemlock), starting from octanoic acid. Coniinearrow_forward
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