Q: (a) State and illustrate the following :(i) Wolff-Kishner reduction (ii) Aldol condensation(b) An…
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Q: aldol condensation reaction of formation of DBA
A: Synthesis of DBA takes place by condensation of two molecules of benzaldehyde and one molecule of…
Q: The reaction that occurs when benzaldehyde is reacted in a basic environment Cannizzaro reaction is…
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Q: When phenylacetaldehyde (C6H5CH2CHO) is dissolved in D2O with added DCl, the hydrogen atoms α to the…
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What is meant by the following terms? Give an example of the reaction in each case.
(i) Aldol (ii) Semicarbazone
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- 1. What is the difference between the catalyzed and uncatalyzed preparation of acetanilide (acetic acid is used instead of acetic anhydride in the presence of Zn as a catalyst)?The reaction that occurs when benzaldehyde is reacted in a basic environment Cannizzaro reaction is called benzoin recovery when reacted with cyanide. Explain the reason by writing the reaction mechanisms of the reactions.(a) State and illustrate the following :(i) Wolff-Kishner reduction (ii) Aldol condensation(b) An organic compound (A) which has characteristic odour, on treatment with NaOH forms two compounds (B) and (C). Compound (B) has the molecular formula C7H8O which on oxidation with CrO3 gives back compound (A). Compound (C) is the sodium salt of the acid. Compound (C) when heated with soda lime yields an aromatic hydrocarbon (D). Deduce the structures of (A), (B), (C) and (D). Write chemical equations for all reactions taking place.
- Briefly explain why, under aqueous acidic conditions, furan readily undergoes a reversible ring opening reaction to give succinaldehyde.The reaction that occurs when the benzaldehyde you have is reacted in a basic environment is called the Cannizzaro reaction, and when it is reacted with cyanide, it is called benzoin. It Explain the reason by writing the reaction mechanisms of the reactions.he reaction that occurs when the benzaldehyde in your hand is reacted in a basic environment. Cannizzaro reaction is called benzoin recovery when reacted with cyanide. It Explain the reason by writing the reaction mechanisms of the reactions.
- Provide the structure of the intramolecular aldol condensation dehydration products that result when diketone (A), below is heated and sodium hydroxide (A= heptane-2,6-dione)When phenylacetaldehyde (C6H5CH2CHO) is dissolved in D2O with added DCl, the hydrogen atoms a to the carbonyl are gradually replaced by deuterium atoms. Write a mechanism for this process that involves enols as intermediates.Describe the following giving the relevant chemical equation in each case :(i) Carbylamine reaction(ii) Hofmann’s bromamide reaction
- What products would you would expect to obtain when the following compounds react with ozone and then with dimethylsulfide?Identify ONE of the several ways by which the formation of a diacetone (mesityl oxide) side product is prevented during the synthesis.2-Ethyl-1-hexanol was needed for the synthesis of the sunscreen octyl p-methylcinnamate. Show how this alcohol could be synthesized (a) by an aldol condensation of butanal and (b) by a malonic ester synthesis starting with diethyl malonate.