Question 1 The following reaction between 2-methylbut-2-ene and hydrogen bromide (HBr) is best described as what...
QUESTION 18 Predict the major organic product of the following reaction. excess CH OH H2SO4 a.) b.) e.) HO OCH OH H2CO OCH OH OH ОСН; QUESTION 19 The appearance of the proton NMR for the following compound is best described in what way? ci CICH CHCI aan upfield singlet and a downfield triplet ban upfield doublet and a downfield triplet an upfield triplet and a downfield singlet an upfield triplet and a downfield doublet an upfield singlet and a...
Question 17 For the following reaction, which of the following is the mechanism? HBr OH A. SN1 B. SN2 C. E1 D. E2 Question 18 What is the product of the following reaction. som trosos molt sisada gniotetor H2O GA I. AG A) I B) II C) III al D) I+II istuiwell todo E) I+III HO Question 19 What reaction mechanism is most likely for substitution on the following compound? 2 Dub T o wable oil A. SN1 B. SN2...
In the reaction of HCl with 3-methylbut-1-ene, two products are isolated as follows. СІ HCI CI In an effort to explain the product distribution in this reaction, the following structural rearrangement has been proposed as reactive intermediates. What type of structural rearrangement is shown here? a. Two resonance forms b. A "Keto-enol tautomerism" C. A Carbocation shift d. A "1,2-Hydride shift"
7. If this reaction under a given set of conditions has a Keq value of 5.67, what percent conversion to the product would be expected? The answer is A. 85%, but I would like an explanation as to why that is, thank you. Instructions: The reaction below is commonly used as a laboratory preparation of cyclohexene. Use this reaction to answer the following question(s) OH н' Н,о 6. Refer to instructions. The forward and reverse reactions are classified, respectively, as:...
Consider the SN2 reaction of butyl bromide with hydroxide ion , Assuming no other changes, what effect on the reaction rate would result from simultaneously doubling the concentrations of both butyl bromide and hydroxyl ion No effect (B)It would double the rate (C)it would increase the rate six times (D) It would increase the rate four times. 2. Which alky halide would you expect to undergo SN1 hydrolysis most rapidly? (A) (CH3)3C-I (B) (CH3)3C-Br (C) (CH3)3C-Cl (D) (CH3)3C-F 3....
Why will the following reaction not occur the way that it is described? 3. C Mg The 3-iodopropyne is pointing the wrong direction a. b. An elimination reaction is favored over a substitution. The product of chlorocyclopentane and Mg° is too sterically hindered to add to the 3- iodopropyne. C. d. The 3-iodopropyne contains an acidic hydrogen and cannot be made into a Grignard reagent. Grignard reagents don't react well with alkyl halides. e.
Part 2 Multiple Choice. Select the best answer for each of the questions below: 1. Which of these molecules is not an electrophile? a) CH4 b) CH3+ c) H* d) BF3 2. Which of these molecules is not a nucleophile ? a) NH3 b) OH c) CN d) H* 3. Water behaves as: a) a nucleophile b) an electrophile c) both d) neither 4. The SN2 reaction has how many steps? a) 1 b) 2 c) 3 d) 4 5....
CIC-CH.CH $$ 0,09 ( -CCHCH, K CANON D) IV 2, whicen er falowing the A) B) II CITI 21) Which of the following alkenes is the most stable? or more com B) II D) IV 22) For the following reaction, use the identity of the alkyl halide and nucleophile to determine which substitution mechanism occurs. Then determine which solvent affords the faster reaction. OH + BO • ное но A) SN 2, H20 B DMF ) SN1, H20 SN1, DMF...
1. Which of the following structures is/are a secondary alkyl halide? (a) I and II (b) II and V (c) I, II and V (d) IV only (e) I, II and III 2. Which of the following is/are aprotic solvent(s)? Choose all correct answers. (a) (b) (c) (d) (e) (f) 3. Which of the following carbocations, if formed, is (are) likely to undergo rearrangement through a hydride shift? (a) I (b) II (c) III (d) I and II (e) II...
Choose the best answer for the main type of reaction shown below: (1 mark) EtOH Br a) > b) c) d) e) 2° alkylhalide, Snl reaction, one product 2º haloalkane, Snl reaction, racemic products 2º haloalkane, SN1/E1 reactions, racemic products and alkene products 2° haloalkane, SN2 reaction, one product 2° alkylhalide, Sn2 reaction, racemic products