Concept explainers
(a)
To determine: The structure of two products.
Interpretation: The structure of two products is to be stated.
Concept introduction: The
(b)
To determine: A mechanism to account for the formation of two products.
Interpretation: A mechanism to account for the formation of two products is to be stated.
Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.
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Organic Chemistry (9th Edition)
- cis-4-Bromocyclohexanol and trans-4-bromocyclohexanol form the same elimination product but a different substitution product when they react with HO-. a. Why do they form the same elimination product? b. Explain, by showing the mechanisms, why different substitution products are obtained. c. How many stereoisomers does each of the elimination and substitution reactions form?arrow_forwardSynthesize each compound from cyclohexanone and organic halides having s4 C's. You may use any other inorganic reagents. OCH3 a. C. OH b. d.arrow_forwardWhich alkene cannot be converted into an alkyl bromide with HBr, ROOR, hv, A? III IV A. B. C. D. E. All react Which synthetic route is best to give the major product shown below. ? x XA OH A. 1. BH3; 2. H₂O2, NaOH; 3. HBr; 4. CH3CO₂H B. 1. Br₂, 2. NaCCH; H₂, Lindlar's; 3. O3; 4. H₂O C. 1. NBS, hv, A; 2. H₂, Pd; 3. NaO₂CCH3 D. 1. NBS, hv, A; 2. NaCCH; 3. H₂2, Pd; 4. O3; 5. H₂O E. 1. NBS, hv, A; 2. H₂, Pd; 3. NaCCH; 4. 03; 5. H₂O Which synthetic route is best for the transformation shown below? OH ? OH A. 1. H₂SO4/heat; 2. HgOAC2, H₂O; 3. NaBH4 B. 1. HBr; 2. NaOH, DMSO C. 1. TsCl, pyr; 2. NaOH, DMSO D. 1. TsCl, pyr; 2. KOtBu; 3. BH3-THF; 4. H₂O2, NaOH E. 1. H₂SO4/heat; 2. BH3-THF; 3. H₂O2, NaOH =Barrow_forward
- Provide either products, reagents, or starting material for each reaction below. a. b. NH2 NaNO2 ? ZON HCIarrow_forwardمگر compound e Reagents a. HX b. c. H₂O, H₂SO4 d. X₂ e. H₂. Pd 1. X₂, H₂O g. Oso, then NaHSO, h. 1. j. HBr, H₂O₂. hv k. 1. compound a bb Hg(OAc)₂, H₂O then NaBH, BH, then H₂O₂. NaOH O, then (CH₂)₂S 2 equivalents of NaNH₂ H₂, Lindlar's catalyst P. adi✔ m. Na/NH₂ n. H₂SO₂, HgSO4 o 9₁ bb r. compound b compound c S L PBr u SOCI₂ V. H₂PO w. H₂CrO₂ X PCC compound f (sia) BH then H₂O₂, NaOH 1 equivalent of NaNH₂ NBS, hy Br₂, hv (CH₂)₂CO¹K* compound d y. Z aa. bb. Na 104 mCPBA NaOH, H₂O compound garrow_forwardRank the compounds according to their increasing reactivity toward electrophilic substitution. 1. Benzaldehyde 2. o-dimethylbenzene 3. nitrobenzene 4. phenolarrow_forward
- A. propose the efficient synthesis and the mechanism B. give the products for each step and the final productarrow_forwardSynthesize a Sudan I. What method should be used and why?arrow_forwardd. 12. What is the simplest fused aromatic hydrocarbon? a. Naphthalene b. 1,2-Benzylpyrene c. Methylbenzene d. Cyclobenzene 13. In electrophilic aromatic substitution reactions, a phenyl substituent on the aromatic ring is a. a deactivator and a m-director b. a deactivator and an o,p-director c. an activator and an o,p-director d. none of the above 14. Acetylide ion formation requires a strong base like NaNH2 which in turn is made using ammonia and Na. The catalyst used in this reaction is a. Cu b. Fe C. Pt d. Pd 15. Hydroboration-Oxidation of terminal alkyne results in the formation of an a. Aldehyde by Markovnikov mechanism b. Ketone by anti-Markovnikov mechanism c. Enol by Markovnikov mechanism d. Aldehyde by anti-Markovnikov mechanism 16.p-Methoxybenzaldehyde can be prepared from anisole using the Gatterman- Koch formylation. What mixture of reagents is necessary for this process? a. CO, HCI, AICI3, CuCI b. CO, SO3, H2SO4 CO2, HCI, AICI3 d. CO2, SO3, H2SO4 e. CO2, HNO3, H2SO4 C.arrow_forward
- 2. Propose synthetic routes for the following transformations. a. b.arrow_forwardcis-4-Bromocyclohexanol and trans-4-bromocyclohexanol form the same elimination product but a different substitution product when they reactwith HO-. a. Why do they form the same elimination product?b. Explain, by showing the mechanisms, why different substitution products are obtained.c. How many stereoisomers does each of the elimination and substitution reactions form?arrow_forward6. Provide the structure for the major product in the following reactions. b. P f. OH g. Lia * Oia ملی CI 1. SOCI₂, pyr. 2. to Br 2 1. LIAIH4 (xs) 2. H₂O 1. LIAI(OR) 3H 2. H₂O 2. NH₂ Et₂CuLi 1. EtMgBr (xs) 2. H₂O 1. Mg 2. CO₂ 3. H* 4. SOCI₂, pyr 1. [H], NaBH3CN, EtNH₂ CI pyridinearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning