Interpretation:
The mechanism of product formation of the given reaction is to be discussed.
Concept introduction:
Electrophiles are electron-deficient species that has positive or partially positive charge. Lewis acids are electrophiles that accept electron pair.
Nucleophiles are electron-rich species that has negative or partially negative charge. Lewis bases are nucleophiles that donate electron pair.
Free radical is an atom, molecule, or ion that has unpaired electrons, which makes it highly chemically reactive.
Substitution reaction: A reaction in which one of the hydrogen atoms of a hydrocarbon or a
Elimination reaction: A reaction in which two substituent groups are detached and a double bond is formed is called elimination reaction.
Addition reaction: It is the reaction in which unsaturated bonds are converted to saturated molecules by the addition of molecules.
The Sommelet-Hauser rearrangement is a rearrangement reaction of benzyl quaternary ammonium salts.
The reagent used in the Sommelet-Hauser rearrangement is the sodium amide or another alkali metal amide.
A tautomer is the constitutional isomer that is readily interconvertible.
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Organic Chemistry
- The mechanism for acidic hydrolysis of a nitrile resembles the basic hydrolysis, exceptthat the nitrile is first protonated, activating it toward attack by a weak nucleophile (water).Under acidic conditions, the proton transfer (tautomerism) involves protonation on nitrogen followed by deprotonation on oxygen. Propose a mechanism for the acid-catalyzedhydrolysis of benzonitrile to benzamide.arrow_forwardShow how to synthesize the following amines from the indicated starting materials.(a) N-cyclopentylaniline from aniline (b) N-ethylpyrrolidine from pyrrolidinearrow_forwardWhich of the following statements is correct? An aldehyde can react with a secondary amine through a nucleophilic addition-elimination mechanism to give an enamine product. A ketone can react with a secondary amine through a nucleophilic addition mechanism to give an imine product. An ketone can react with a primary amine through a nucleophilic addition-elimination mechanism to give an enamine product. An aldehyde can react with a primary amine through a nucleophilic addition mechanism to give an imine product.arrow_forward
- Provide the steps to convert the following aldehyde to the given amine product.arrow_forwardShow how to synthesize the following amines from the indicated starting materials byreductive amination.(a) benzylmethylamine from benzaldehydearrow_forwardSeveral additional amine syntheses are effectively limited to making primary amines. The reduction of azides and nitrocompounds and the Gabriel synthesis leave the carbon chain unchanged. Formation and reduction of a nitrile adds onecarbon atom. Show how these amine syntheses can be used for the following conversions.(a) allyl bromide S allylamine (b) ethylbenzene S p@ethylanilinearrow_forward
- Phenylacetone can form two different enols.(a) Show the structures of these enols.(b) Predict which enol will be present in the larger concentration at equilibrium.(c) Propose mechanisms for the formation of the two enols in acid and in basearrow_forwardShow how Gabriel syntheses are used to prepare the following amines.(a) benzylaminearrow_forwardFollowing is a synthesis for toremifene, a nonsteroidal estrogen antagonist whose structure is closely related to that of tamoxifen. (a) This synthesis makes use of two blocking groups, the benzyl (Bn) group and the tetrahydropyranyl (THP) group. Draw a structural formula of each group and describe the experimental conditions under which it is attached and removed. (b) Discuss the chemical logic behind the use of each blocking group in this synthesis. (c) Propose a mechanism for the conversion of D to E. (d) Propose a mechanism for the conversion of F to toremifene. (e) Is toremifene chiral? If so, which of the possible stereoisomers are formed in this synthesis?arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning