(a)
Interpretation: The dicarbonyl compound which is needed to prepare given compound by an intramolecular aldol reaction is to be predicted.
Concept introduction: The Aldol condensation reaction that takes place in the different molecules in presence of strong base is known as intermolecular aldol reactions.
The Aldol condensation reaction that takes place within the same molecule in presence of strong base is known as intramolecular aldol reactions. This reaction takes place within the dicarbonyl compounds in which one carbonyl group forms the enolate that acts as a nucleophile and reacts with second carbonyl group which acts as electrophile.
(b)
Interpretation: The dicarbonyl compound which is needed to prepare given compound by an intramolecular aldol reaction is to be predicted.
Concept introduction: The Aldol condensation reaction that takes place in the different molecules in presence of strong base is known as intermolecular aldol reactions.
The Aldol condensation reaction that takes place within the same molecule in presence of strong base is known as intramolecular aldol reactions. This reaction takes place within the dicarbonyl compounds in which one carbonyl group forms the enolate that acts as a nucleophile and reacts with second carbonyl group which acts as electrophile.
(c)
Interpretation: The dicarbonyl compound which is needed to prepare given compound by an intramolecular aldol reaction is to be predicted.
Concept introduction: The Aldol condensation reaction that takes place in the different molecules in presence of strong base is known as intermolecular aldol reactions.
The Aldol condensation reaction that takes place within the same molecule in presence of strong base is known as intramolecular aldol reactions. This reaction takes place within the dicarbonyl compounds in which one carbonyl group forms the enolate that acts as a nucleophile and reacts with second carbonyl group which acts as electrophile.
(d)
Interpretation: The dicarbonyl compound which is needed to prepare given compound by an intramolecular aldol reaction is to be predicted.
Concept introduction: The Aldol condensation reaction that takes place in the different molecules in presence of strong base is known as intermolecular aldol reactions.
The Aldol condensation reaction that takes place within the same molecule in presence of strong base is known as intramolecular aldol reactions. This reaction takes place within the dicarbonyl compounds in which one carbonyl group forms the enolate that acts as a nucleophile and reacts with second carbonyl group which acts as electrophile.
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Chapter 24 Solutions
Organic Chemistry
- Devise a synthesis of each compound from acetylene and any other required reagents.arrow_forwardDraw the product formed from a Michael reaction with the given starting materials using OEt and EtOH. &. i CO₂Et NaOEt EtOH draw structure ...arrow_forwardWhat starting materials are needed to synthesize each attached compound by a Robinson annulation?arrow_forward
- Devise a synthesis of attached compound from benzene, any organic alcohols having four or fewer carbons, and any required reagentsarrow_forwardWhich carbonyl compounds do not undergo an aldol reaction when treated with OH in H2O?arrow_forwardDraw the products formed in each crossed aldol reaction.arrow_forward
- Problem 24.25 Draw the products when each pair of compounds is treated with "OH, H,O in a Robinson annulation reaction. EI0,C b. cOOEt d.arrow_forwardWhat crossed Claisen product is formed from each pair of compounds?arrow_forwardB. Problem 16.74 Provide the missing reagents for each step of this synthesis: a d Br b Br تھ e Br C Br from henzene?arrow_forward
- Problem 17.21: Show how you could carry out the synthesis below beginning with benzaldehyde, and usmg eny other reagents necessary.arrow_forwardWhat cyclic product is formed from each dihalide using the malonic ester synthesis?arrow_forwardWhat carbonyl starting materials are needed to prepare each compound using a directed aldol reaction?arrow_forward
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