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3. Circle the best nucleophile for the SN2 reaction. NACEN Nal NaOCH; NASH Question 1: There...
1. We will be doing the following reactions. Draw the reactions as Snl or Sn2 reactions...
1. We will be doing the following reactions. Draw the reactions as Snl or Sn2 reactions including reaction arrows. RFR + Nal → R R + NaBr(s) acetone R PT R EtOH AgNOR OEt R + AgBr(s) + HNO3 2. We will be using Nal (in acetone) and ethanol as nucleophiles. Nat is a spectator ion. Classify I and ethanol as good nucleophiles or poor nucleophiles. Explain why. 3. In your lab notebook draw the following table a. Rank cach...
Choose the best answer for the main type of reaction shown below: For an SN2 reaction, the BEST scenario would be: Selec...
Choose the best answer for the main type of reaction shown
below:
For an SN2 reaction, the BEST scenario would be:
Select the term that best identifies relationship between the
two molecules shown.
Choose the best answer for the main type of reaction shown below: (1 mark) EtOH a) b) 2° alkylhalide, Syl reaction, one product 2° haloalkane, Syl reaction, racemic products 2º haloalkane, Sn1/E1 reactions, racemic products and alkene products 2º haloalkane, Sn2 reaction, one product 2° alkylhalide, Sn2...
1. Sketeh the energy diagram for a spontaneous second order reaction. Clearly label all axis, the...
1. Sketeh the energy diagram for a spontaneous second order reaction. Clearly label all axis, the rate limiting step, transition state(a), intermediate(s), and enthalpy change. (4pta) Draw the mechanism given the following reaction: 2. (4pta) (3pts) Rank the following in decreasing strength (1-strongest) of the C-halogen bond: 3. 4. Of all halogens we talked about in lecture, which halogen is considered the best leaving group? Explain why (give 2 reasons). (4pts) 5. Rank the following in decreasing nucleophile quality (1-strongest)?...
Question 1 The following reaction between 2-methylbut-2-ene and hydrogen bromide (HBr) is best described as what...
Question 1 The following reaction between 2-methylbut-2-ene and hydrogen bromide (HBr) is best described as what type of reaction? Refer to the Figure A) Addition B) Substitution C) Elimination D) Rearrangement Question 2 For the reaction in question 1, two products are possible- a major product, and a minor product. For the minor product, what is the splitting pattern for the added hydrogen (highlighted in red) that would be observed in the molecules HINMR spectrum? Refer to the Figure HBr...
We begin with the surmise that the nucleophilic substitution reactions can occur only by one of...
We begin with the surmise that the nucleophilic substitution reactions can occur only by one of two mechanisms: Sn1 solvolysis: three-step mechanism R-X slow, R® + to R® + ROH fast , ROM R' H. R-O + R'OH fast , ROR' + R- SN2: one-step mechanism R-X + Nuc slow, Nuc-R + x Begin by answering the three questions below. If you don't understand what's up, please ask! 1. Write out the rate law for the above Sn1 reaction and...
SN2 Laboratory Experiment Work-Sheet 1. Identify the compounds below with the title "nucleophile" or "electrophile", in...
SN2 Laboratory Experiment Work-Sheet 1. Identify the compounds below with the title "nucleophile" or "electrophile", in terms of the lab reaction. NUORO plecrophie он O CIL OH 1.89 grams 2. How many grams of 4-chlorophenol are in the 10ml. of a 1 M sodium 4- chlorophenolate 2.5 M solution which you will use in lab? 3. How many grams of Sodium Hydroxide are in the 10nl of a 1 M sodium 4- 0.709 chlorophenolate 2.5 M solution which you will...
Question 1 and 2 of the worksheet? Shang 22 In this figure, P2 is lower energy...
Question 1 and 2 of the worksheet?
Shang 22 In this figure, P2 is lower energy than P1. By the Hammond postulate, TS2 is also lower energy as well as structurally more like the reactants. Thus the activation energy. EA[2) is also lower Trends in Nucleophile Strength For this discussion, we have to assume the rate factors above apply in reverse that a faster reaction rate is associated with a more exothermic reaction. For nucleophiles, the neutral nucleophiles (amines, alcohols,...
1. (18 points; 3 points each] Multiple Choice: Circle the best answer i. Consider the following...
1. (18 points; 3 points each] Multiple Choice: Circle the best answer i. Consider the following reaction: Xooot THF, A If there are no other changes, what is the effect of doubling the concentration of the starting alcohol on the rate of this reaction? a. No change b. Doubles the rate C. Triples the rate d. Quadruples the rate ii. Which nitrogen compound below would react fastest as a nucleophile in an 5, 2 reaction? NH NH N d. "NH2...
How would you solve this question? confused about how SN1 and E1 reactions work 1) The...
How would you solve this question? confused about how SN1 and E1
reactions work
1) The following reactions have all the same electrophiles but different nucleophiles. Thus the rate of the following reactions is dependent upon the nucleophilicity of the nucleophile. In the following pairs of reactions determine which is faster x) or y) and choose the explanation and Potential Energy-Reaction Coordinate diagram given below to explain why. Use the bottom table below to answer the question. H EtOH +...
Consider the SN2 reaction of butyl bromide with hydroxide ion , Assuming no other changes, what...
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....
1. We will be doing the following reactions. Draw the reactions as Snl or Sn2 reactions including reaction arrows. RFR + Nal → R R + NaBr(s) acetone R PT R EtOH AgNOR OEt R + AgBr(s) + HNO3 2. We will be using Nal (in acetone) and ethanol as nucleophiles. Nat is a spectator ion. Classify I and ethanol as good nucleophiles or poor nucleophiles. Explain why. 3. In your lab notebook draw the following table a. Rank cach...
Choose the best answer for the main type of reaction shown
below:
For an SN2 reaction, the BEST scenario would be:
Select the term that best identifies relationship between the
two molecules shown.
Choose the best answer for the main type of reaction shown below: (1 mark) EtOH a) b) 2° alkylhalide, Syl reaction, one product 2° haloalkane, Syl reaction, racemic products 2º haloalkane, Sn1/E1 reactions, racemic products and alkene products 2º haloalkane, Sn2 reaction, one product 2° alkylhalide, Sn2...
1. Sketeh the energy diagram for a spontaneous second order reaction. Clearly label all axis, the rate limiting step, transition state(a), intermediate(s), and enthalpy change. (4pta) Draw the mechanism given the following reaction: 2. (4pta) (3pts) Rank the following in decreasing strength (1-strongest) of the C-halogen bond: 3. 4. Of all halogens we talked about in lecture, which halogen is considered the best leaving group? Explain why (give 2 reasons). (4pts) 5. Rank the following in decreasing nucleophile quality (1-strongest)?...
Question 1 The following reaction between 2-methylbut-2-ene and hydrogen bromide (HBr) is best described as what type of reaction? Refer to the Figure A) Addition B) Substitution C) Elimination D) Rearrangement Question 2 For the reaction in question 1, two products are possible- a major product, and a minor product. For the minor product, what is the splitting pattern for the added hydrogen (highlighted in red) that would be observed in the molecules HINMR spectrum? Refer to the Figure HBr...
We begin with the surmise that the nucleophilic substitution reactions can occur only by one of two mechanisms: Sn1 solvolysis: three-step mechanism R-X slow, R® + to R® + ROH fast , ROM R' H. R-O + R'OH fast , ROR' + R- SN2: one-step mechanism R-X + Nuc slow, Nuc-R + x Begin by answering the three questions below. If you don't understand what's up, please ask! 1. Write out the rate law for the above Sn1 reaction and...
SN2 Laboratory Experiment Work-Sheet 1. Identify the compounds below with the title "nucleophile" or "electrophile", in terms of the lab reaction. NUORO plecrophie он O CIL OH 1.89 grams 2. How many grams of 4-chlorophenol are in the 10ml. of a 1 M sodium 4- chlorophenolate 2.5 M solution which you will use in lab? 3. How many grams of Sodium Hydroxide are in the 10nl of a 1 M sodium 4- 0.709 chlorophenolate 2.5 M solution which you will...
Question 1 and 2 of the worksheet?
Shang 22 In this figure, P2 is lower energy than P1. By the Hammond postulate, TS2 is also lower energy as well as structurally more like the reactants. Thus the activation energy. EA[2) is also lower Trends in Nucleophile Strength For this discussion, we have to assume the rate factors above apply in reverse that a faster reaction rate is associated with a more exothermic reaction. For nucleophiles, the neutral nucleophiles (amines, alcohols,...
1. (18 points; 3 points each] Multiple Choice: Circle the best answer i. Consider the following reaction: Xooot THF, A If there are no other changes, what is the effect of doubling the concentration of the starting alcohol on the rate of this reaction? a. No change b. Doubles the rate C. Triples the rate d. Quadruples the rate ii. Which nitrogen compound below would react fastest as a nucleophile in an 5, 2 reaction? NH NH N d. "NH2...
How would you solve this question? confused about how SN1 and E1
reactions work
1) The following reactions have all the same electrophiles but different nucleophiles. Thus the rate of the following reactions is dependent upon the nucleophilicity of the nucleophile. In the following pairs of reactions determine which is faster x) or y) and choose the explanation and Potential Energy-Reaction Coordinate diagram given below to explain why. Use the bottom table below to answer the question. H EtOH +...
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