Concept explainers
(a)
Interpretation:
The mechanism for the given reaction should be determined.
Concept introduction:
Nucleophile: Nucleophiles are electron rich compounds which donates electrons to electrophilic compounds which results in bond formation.
Nucleophilic nature depends on the negative charge present in the molecule, the solvent in which it present and the electronegativity of the atom.
Electrophile: Electrophiles are electron deficient compounds which accepts electrons from nucleophiles that results in bond formation.
The curved arrows are generally used to indicate the flow of electrons present in the reaction.
Addition Reaction: It is defined as chemical reaction in which two given molecules combines and forms product. The types of addition reactions are electrophilic addition, nucleophilic addition, free radical additions and cycloadditions. Generally, compounds with carbon-hetero atom bonds favors addition reaction.
In addition reaction of
Oxidation Reaction: It involves loss of electrons, addition of oxygen atoms or removal of hydrogen atoms.
Oxidizing Reagents: The chemical agents used to add oxygen or remove hydrogen which finally reduced on oxidizing the other compound.
Carbocation: it is carbon ion that bears a positive charge on it.
Carbocation stability order:
(b)
Interpretation:
The rate determining step for the given reaction should be determined.
Concept introduction:
Carbocation: it is carbon ion that bears a positive charge on it.
Carbocation stability order:
Rate determining step: The slowest step in the reaction is called rate determining step. The actual
(c)
Interpretation:
The electrophile present in the first step of given reaction should be determined.
Concept introduction:
Electrophile: Electrophiles are electron deficient compounds which accepts electrons from nucleophiles that results in bond formation.
Chemical reaction involves bond making and breaking of two or more reactants in order to attain products from the reactants.
The curved arrows are generally used to indicate the flow of electrons present in the reaction.
(d)
Interpretation:
The nucleophile present in the first step of given reaction should be determined.
Concept introduction:
Nucleophile: Nucleophiles are electron rich compounds which donates electrons to electrophilic compounds which results in bond formation.
Nucleophilic nature depends on the negative charge present in the molecule, the solvent in which it present and the electronegativity of the atom.
(e)
Interpretation:
The electrophile present in the second step of given reaction should be determined.
Concept introduction:
Electrophile: Electrophiles are electron deficient compounds which accepts electrons from nucleophiles that results in bond formation.
Chemical reaction involves bond making and breaking of two or more reactants in order to attain products from the reactants.
The curved arrows are generally used to indicate the flow of electrons present in the reaction.
(f)
Interpretation:
The nucleophile present in the second step of given reaction should be determined.
Concept introduction:
Nucleophile: Nucleophiles are electron rich compounds which donates electrons to electrophilic compounds which results in bond formation.
Nucleophilic nature depends on the negative charge present in the molecule, the solvent in which it present and the electronegativity of the atom.
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Chapter 6 Solutions
EBK ORGANIC CHEMISTRY
- a. HO b. NH 33. Which is a better nucleophile? a. H₂O or HO c. H₂S b. NH3 or NH₂ C. CH, CO in a better leaving group. or CH3CH₂O d. -0 or -0arrow_forwardWhich member of each pair is a better nucleophile in methanol?arrow_forwardFor each alkyl halide and nucleophile: [1] Draw the product of nucleophilic substitution; [2] determine the likely mechanism (SN1 or SN2) for each reaction.arrow_forward
- For each alkyl halide and nucleophile: [1] Draw the product of nucleophilic substitution; [2] determine the likely mechanism (SN1 or SN2) for each reaction. a. CH;OH CH;CH20- Br b. "SH d. + CH;OH Brarrow_forwardWhats the reason for the girgnard reagent attack that carbon of starting point in this step? a. Bc it gives us desired product b. Due to the sterics c. Bc it is more electrophilic than the other carbon of the starting pointarrow_forward3. a. Draw the major product that results from the nitration of anisole (shown below). OCH 3 anisole b. What reagents would be needed? c. What is the actual electrophile in this reaction (be specific)? Toisenons ontzi abouomo 20 d. How does the rate of this reaction compare to the nitration of benzene?arrow_forward
- Propose a mechanism for the following reaction (show all curved arrows): b. Which step is the rate-determining step? c. What is the electrophile in the first step? d. What is the nucleophile in the first step?e. What is the electrophile in the second step? f. What is the nucleophile in the second steparrow_forwardWhich best describes this transformation? Meo,C CO,Me Et NaOMe (2 equivalents) MeOH Et H,N NH2 HN NH Et Et A. Two intermolecular nucleophilic acyl substitutions B. Two intramolecular nucleophilic acyl substitutions C. An intramolecular followed by an intermolecular nucleophilic acyl substitutions D. An intermolecular followed by an intramolecular nucleophilic acyl substitutionsarrow_forwardWhat mechanism is followed by Reaction 1 and 2? Possible Ans: Electrophilic addition, Electrophilic substitution, Radical substitution, Rearrangement What starting material is needed for reaction 1? a. Benzene b. Pent-2-ene c. Pent-2-yne d. Pentanearrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning