(a)
Interpretation: The Given compounds can be prepared using a Reformatsky reaction has to be described.
Concept introduction: An
On acidic hydrolysis of ester, the
(b)
Interpretation: The Given compounds can be prepared using a Reformatsky reaction has to be described.
Concept introduction: An aldehyde or ketone is reacted with an organozinc reagent. The organozinc reagent is added to the carbonyl of aldehyde. The final product on hydrolysis is required
On acidic hydrolysis of ester, the carboxylic acid can be obtained. To remove a molecule of water, the
(c)
Interpretation: The Given compounds can be prepared using a Reformatsky reaction has to be described.
Concept introduction: An aldehyde or ketone is reacted with an organozinc reagent. The organozinc reagent is added to the carbonyl of aldehyde. The final product on hydrolysis is required
On acidic hydrolysis of ester, the carboxylic acid can be obtained. To remove a molecule of water, the
(d)
Interpretation: The Given compounds can be prepared using a Reformatsky reaction has to be described.
Concept introduction: An aldehyde or ketone is reacted with an organozinc reagent. The organozinc reagent is added to the carbonyl of aldehyde. The final product on hydrolysis is required
On acidic hydrolysis of ester, the carboxylic acid can be obtained. To remove a molecule of water, the
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Organic Chemistry (8th Edition)
- The following molecule can be formed via an intramolecular aldol addition reaction. Draw the organic starting material needed to form the given B-hydroxycarbonyl compound. organic starting material B-hydroxycarbonyl NaOH OHarrow_forwardbase 2 H3C H H3C OH heat H H3C + H₂O H The aldol reaction is a carbonyl condensation reaction between two carbonyl partners and involves a combination of nucleophilic addition and a-substitution steps. One partner is converted into an enolate ion nucleophile and adds to the electrophilic carbonyl group of the second partner. In the classic aldol reaction, the carbonyl partners are aldehydes or ketones, although aldehydes are more reactive. The product is a ẞ-hydroxy carbonyl compound. Under reaction conditions slightly more vigorous than those employed for the aldol reaction, the ẞ-hydroxyl group is eliminated in an E1CB dehydration to give an a,ẞ-unsaturated carbonyl compound. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions X :OH H₂O: а کی H₂C H H₂C H Harrow_forwardWhat would happen if you treated a Grignard with this starting material? The alcohol would deprotonate the Grignard reagents The Grignard reagent would deprotonate the alcohol and would no longer be nucleophilic The Grignard would conduct an SN2 reaction with the alcoholarrow_forward
- Starting with cyclohexanone and ethanol as the only organic reagents, use any inorganic reagents to propose a synthesis for the target molecule.arrow_forwardplease complete the reactionarrow_forwardWrite the reagents used to synthesise the following compound starting from the benzoic acidarrow_forward
- What is the role of phosphoric acid in the synthesis of cyclohexene? it is an antioxidant that prevents free radical side reactions it is a safe, non-toxic solvent it lowers the boiling point of the reaction mixture (a colligative property of adding phosphoric acid to water) it protonates the hydroxyl of cyclohexanol to make it a better leaving grouparrow_forwardThe following substances can be prepared by a nucleophilic addition reaction between an aldehyde or ketoneand a nucleophile. Identify the reactants from which they were prepared. If the substance is an acetal, identifythe carbonyl compound and the alcohol; if it is an imine or enamine, identify the carbonyl compound and theamine. You do not have to consider stereochemistry. In cases where there is more than one answer, just giveone. Use Grignard reagents when an organometallic reagent is required. Draw the Grignard reagent as acovalent magnesium bromide.arrow_forwardFollowing ester (methyl benzoate) was hydrolyzed in presence of an acid catalyst. This reaction produces --- and ---. OCH3 benzoic acid, ethanol benzoic acid, water acetic acid, benzene benzoic acid, methanolarrow_forward
- 10. Why do aldehydes undergo nucleophilic addition reactions (rxns from Unit 10) while esters undergo nucleophilic acyl substitution (rxns from Unit 11) reactions? A) The carbonyl carbon of an ester is more electrophilic than that of an aldehyde. B) Aldehydes are more sterically hindered than esters. C) Once the nucleophile adds to an aldehyde, the tetrahedral intermediate is too sterically hindered to eliminate one of the attached groups. D) The ester carbonyl carbon is sp3 hybridized while the aldehyde carbonyl carbon is sp2 hybridized. E) Once the nucleophile adds to an aldehyde, neither H- nor R- can be eliminated since they are strongly basic.arrow_forwardWhich of the following is not the result of a nucleophilic addition to a ketone or aldehyde?arrow_forwardDraw out the reaction mechanism for cyclohexanol to cyclohexanone. Sodium hypochlorite oxidation of an alcohol to a ketone with the product being cyclohexanone.arrow_forward
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