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2 Ws 1. For each of the following SN2 reactions, (i) draw the chemical reaction (reactants...
1. Draw the transition state for the following SN2 reactions Br SH NaSH a. NaOH b....
1. Draw the transition state for the following SN2 reactions Br SH NaSH a. NaOH b. Br OH OH NaOH C. d. 2. Draw the concerted mechanism of the SN2 reactions from the previous question. a. b. C. d.
1. For the following Alkyl halide indicate which position will react under SN1 reaction conditions and...
1. For the following Alkyl halide indicate which position will react under SN1 reaction conditions and under SN2 reaction conditions. Explain your answer. mer 2. Draw the complete mechanism and the products for of the following SN1 reaction paying close attention to stereochemistry. H3C CI CH OH CH2CH3 општироотип солио 3. Provide the product/s for the following reactions. Indicate if the reactions proceed via an SN1, or SN2 mechanism. Indicate proper stereochemistry if it is applicable. Show the mechanisms NaCN...
17. Draw the structure of the major organic product(s) for each of the following reactions. Indicate...
17. Draw the structure of the major organic product(s) for each of the following reactions. Indicate stereochemistry when appropriate. C(CH3)3 NASH Br (S)-2-bromononane - acetonitrile KOH CH,OH NaCN HE Br Acetonitrile C2H5 H, Br NaOH Acetone excess HBr ROOR HC1 + Br Na o DMSO
UNUN LILL 1. Describe the following chemical reactions as SNI. SN2. El & E. Draw a...
UNUN LILL 1. Describe the following chemical reactions as SNI. SN2. El & E. Draw a curved arrow mechanism for each reaction. KCN DMSO BE NaOH H20. heat 11 Br HO *** OH CHỊCH, Na* ethanol
CHE241/240 Assignment 2: SN2 and SN1 Name:Alexo.adio Hesker 1. Indicate whether the following substitution reactions will...
CHE241/240 Assignment 2: SN2 and SN1 Name:Alexo.adio Hesker 1. Indicate whether the following substitution reactions will proceed by Sy or Sy? [3] Racemic NaCN DMSO 2. Draw a mechanism for the following Sy reaction? [3] SH + NaSH NASH - - NaBr + NaBt 3. Draw the transition state for the following Sy2 reaction? [3] 1. Indicate whether the following substitution reactions will proceed by SNP or Sn"? [3] MOH problemi CXCHANS H.0 NaCN DMSO 2. Draw a mechanism for...
2. Draw an energy diagram for the first reaction in problem #1. Label the axis, reactants,...
2. Draw an energy diagram for the first reaction in problem #1. Label the axis, reactants, products, any intermediates (if needed) and transition states. Than indicate using dotted a line how the diagram would change if CH,CH2OH was used as the solvent instead of acetone. 3. Draw the mechanism showing how the following molecule can best be produced using a SN2 reaction (the molecule shown below is the product, you need to determine the proper reactants (RX and Nu)).
1. Which reaction below occurs faster through an SN2 mechanism and why? Draw the transition states...
1. Which reaction below occurs faster through an SN2 mechanism and why? Draw the transition states of each reaction to explain your answer. OH to bomto Br OH b) OH 2. The reaction of 9.0 g of 1-butanol (MW = 76g/mol) with 13.0 g of sodium bromide (MW = 103 g/mol) with excess acid produces 8.5 g of 1-bromobutane (MW 137 g/mol). a. What is the purpose of the acid? b. What is the % yield for the reaction? Show...
1. Predict the major products of the following reactions. (Hint: draw out Tosylate ion) ethyl tosylate...
1. Predict the major products of the following reactions. (Hint: draw out Tosylate ion) ethyl tosylate + potassium tert-butoxide 2.isobutyl tosylate + NaI 3.(R)-2-hexyl tosylate + NaCN (show sterochemistry) 4.the tosylate of cyclohexylmethanol + excess NH3 5.n-butyl tosylate + sodium acetylide, H−C≡C:−Na+
For letters h & i : For each of the following reactions, predict the major mechanistic pathway (SN1/SN2/E1/E2...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
1. Give the missing reagents, reactants or products for each of the following reactions. KOC(CH3)2 (E2)...
1. Give the missing reagents, reactants or products for each of the following reactions. KOC(CH3)2 (E2) 1. BH3 2. H2O2, NaOH, H2O PCC HBr/ROOR how many stereoisomers? PCC ad Excess H, H CH2Cl2 OT_HBr SN2 give one stereoisomer SN2 NaCN ACN (solvent) KMnO4 H2SO4 NaOEt (E2) mCPBA H2SO4 (cat) don't worry about this reaction ОН PCC CH2Cl2 NaOEt (E2) mCPBA H2SO4 (cat) don't worry about this reaction OH PCC CH2Cl2 HI (SN1)
1. Draw the transition state for the following SN2 reactions Br SH NaSH a. NaOH b. Br OH OH NaOH C. d. 2. Draw the concerted mechanism of the SN2 reactions from the previous question. a. b. C. d.
1. For the following Alkyl halide indicate which position will react under SN1 reaction conditions and under SN2 reaction conditions. Explain your answer. mer 2. Draw the complete mechanism and the products for of the following SN1 reaction paying close attention to stereochemistry. H3C CI CH OH CH2CH3 општироотип солио 3. Provide the product/s for the following reactions. Indicate if the reactions proceed via an SN1, or SN2 mechanism. Indicate proper stereochemistry if it is applicable. Show the mechanisms NaCN...
17. Draw the structure of the major organic product(s) for each of the following reactions. Indicate stereochemistry when appropriate. C(CH3)3 NASH Br (S)-2-bromononane - acetonitrile KOH CH,OH NaCN HE Br Acetonitrile C2H5 H, Br NaOH Acetone excess HBr ROOR HC1 + Br Na o DMSO
UNUN LILL 1. Describe the following chemical reactions as SNI. SN2. El & E. Draw a curved arrow mechanism for each reaction. KCN DMSO BE NaOH H20. heat 11 Br HO *** OH CHỊCH, Na* ethanol
CHE241/240 Assignment 2: SN2 and SN1 Name:Alexo.adio Hesker 1. Indicate whether the following substitution reactions will proceed by Sy or Sy? [3] Racemic NaCN DMSO 2. Draw a mechanism for the following Sy reaction? [3] SH + NaSH NASH - - NaBr + NaBt 3. Draw the transition state for the following Sy2 reaction? [3] 1. Indicate whether the following substitution reactions will proceed by SNP or Sn"? [3] MOH problemi CXCHANS H.0 NaCN DMSO 2. Draw a mechanism for...
2. Draw an energy diagram for the first reaction in problem #1. Label the axis, reactants, products, any intermediates (if needed) and transition states. Than indicate using dotted a line how the diagram would change if CH,CH2OH was used as the solvent instead of acetone. 3. Draw the mechanism showing how the following molecule can best be produced using a SN2 reaction (the molecule shown below is the product, you need to determine the proper reactants (RX and Nu)).
1. Which reaction below occurs faster through an SN2 mechanism and why? Draw the transition states of each reaction to explain your answer. OH to bomto Br OH b) OH 2. The reaction of 9.0 g of 1-butanol (MW = 76g/mol) with 13.0 g of sodium bromide (MW = 103 g/mol) with excess acid produces 8.5 g of 1-bromobutane (MW 137 g/mol). a. What is the purpose of the acid? b. What is the % yield for the reaction? Show...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
1. Give the missing reagents, reactants or products for each of the following reactions. KOC(CH3)2 (E2) 1. BH3 2. H2O2, NaOH, H2O PCC HBr/ROOR how many stereoisomers? PCC ad Excess H, H CH2Cl2 OT_HBr SN2 give one stereoisomer SN2 NaCN ACN (solvent) KMnO4 H2SO4 NaOEt (E2) mCPBA H2SO4 (cat) don't worry about this reaction ОН PCC CH2Cl2 NaOEt (E2) mCPBA H2SO4 (cat) don't worry about this reaction OH PCC CH2Cl2 HI (SN1)
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