Which of the following compounds is MOST reactive with respect to an aromatic nitration reaction? Select one: O A. III OB. I O C. IV O D. II II Br III NO₂ IV C-H
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- 1. Propose a plausible mechanism for the following reactions: a. b. Worksheet 4 HOX OH НО. HCI (xs) A 2 eq. CISpecify the reagent you would use in each step of the following synthesis: Specify the reagent you would use in each step of the following synthesis: step 1 step 2 Reagents Available a. LIAIHA f. PBra k. CH;CH,MgBr b. H,SO4 g. Dess-Martin periodinane (DMP) I. CHgMgBr (phenylmagnesium bromide) c. HCI h. NaH m. (CH3)2CHM9B d. HBr i. NaOH n. Cro3 e. SOCI2 j. CH3M9B Write the letters of the reagents in the boxes below. Reagent for step 1 Reagent for step 2 Submit Answer Retry Entire Group 9 more group attempts remainingWhat is the major elimination product expected from the following reaction? Br. NaOMe MeOH Select one: a. b. Od.
- Which of the following compounds is the electrophile species that reacts with benzene in the aromatic nitration reaction? Select one: a. HNO3 b. NO2+ c. HNO2 d. NO+ e. N3-D. OH B.: A. HO но 1) тСРВА CPBA Which starting material yields this product?Which of the following compounds will undergo aromatic nitration most rapidly? I NO2 II CI III IV :OH CH3 Select one: O A. I O B. II O C. III O D. IV
- Predict the major products of the reaction of acetone with each of the following reagents: a. NaHSO3 b. NH2OH c. NH2-NH-C,H;NH,Which of these gives mostly the meta product when treated with Br2 / Fe? a. b. C. NH2 d. O-CH3 aWhich option is the major product expected for the reaction below? a. b. C. d. CHO NaOH (trace) H₂O o HO OH OH OH CHO or ?
- d. 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.When methanitrobenzoic acid is reacted with bromomethane in the presence of Lewis acids, the product is: A. III No.B. V numbered structureC. Structure ID. Building IIE. Building IVBr ÓCH, a. SN1 & E1 b. SN1 & E2 c. SN2 & E1 d. SN2 & E2 21. What is the reagent used for the following reaction? foid W a. BH3/THF, then H2O2/OH b. Hg(OAc)2/H2O, then NaBH4 с. Н2О, Н* d. H2, Pd/C 22. What is the major product for reaction below? H,SO4 OH d. none b. с. a. 3. Arrange the following substrates in order of increasing their SN2 reactivity with NaC bentane,