Concept explainers
(a)
Interpretation:
The product structures of should be drawn in
Concept Introduction:
The
An E2 reaction is a concerted, one-step reaction in which the proton and the halide ion are removed in the same step.
For
A good nucleophile/strong base favors
In primary alkyl halides substitution take place.
In secondary alkyl halides substitution and elimination take place (strong. bulky bases and high temperatures favor elimination over substitution).
In tertiary alkyl halides only elimination takes place
(b)
Interpretation:
The product structures of should be drawn in
Concept Introduction:
The
An E2 reaction is a concerted, one-step reaction in which the proton and the halide ion are removed in the same step.
For alkyl halide (tertiary, benzylic, and allylic) that can undergo both
A good nucleophile/strong base favors
In primary alkyl halides substitution take place.
In secondary alkyl halides substitution and elimination take place (strong. bulky bases and high temperatures favor elimination over substitution).
In tertiary alkyl halides only elimination takes place.
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EBK ORGANIC CHEMISTRY
- 9. Identify the second most reactive one out of the following halides in a E2 reaction. to arto tor Br Br Br + -Brarrow_forwardA carbon-deuterium bond (C-D) is stronger than a carbon hydrogen bond (C-H) and takes more energy to break If Compound Q is subjected to an E2 reaction, you get the following results. Explain the product ratio. Br K O-C(CH) H. BO% 20% b) When Compound P undergoes an S.1/E1 reaction, you get following results. Unlike the E2 reaction above, in this case, there is almost no difference in the product ratio. Explain Ph Ph Bre CHIOH heat Sal anpoudarrow_forward1. Draw all products for the base-catalyzed E2-elimination shown below. What are their relative stabilities? What is the possible side-reaction? NaOEt Brarrow_forward
- Fill in the missing product for the reaction shown below: HNO3 H₂SO4 (cat.) + H₂Oarrow_forward5. Which of the following reagents would best accomplish a typical E2 reaction? A) CH3OH B) KCN C) Nal D) (CH3)3COK E) CISO,CH3, basearrow_forwardChoose a reagent from the table to bring about the following conversion: Br (If more than one step is required, enter the reagents in the order that they are Reagents available a. NBS, CH₂Cl2, light b. FeBr3 / THF d. NBr, acetone e. Bra, CH₂Cl₂ g. BBr3 h. NaCl, NaBr, H₂O i. HBr, peroxides Reagent: c. HBr, dark f. BrCH₂ CH3arrow_forward
- What is the major organic product of the following E2 reaction? Br CH,CH,ONa ? CH,CH,OHarrow_forwardOne of the two diastereomers shown below reacts with potassium tertbutoxide significantly faster than then the other. Which one is it? Provide an explanation and predict the product of the fast reaction.arrow_forwardPlease don't provide handwriting solutionarrow_forward
- How many potential E2 elimination products can form from the addition of NaOH to the following: (free hint: trans-decalin cannot undergo a ring flip) → 1/2/3/no products H Br "H. H, Brarrow_forward2. Predict the starting material for the following E2 reaction (including stereochemistry): CH3 NaOEt Ph. H. ETOH Etarrow_forwardTell whether the following reactions will occur via SN1, SN2, E1, or E2.arrow_forward