Homework Answers
E2 elimination always goes through the anti
selectivity and the trans isomer is most stable one.
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2. (a) Write the mechanism for the following elimination reaction: 3 points (b) Determine the most...
1. (a) Show the mechanism for the following substitution reaction. 3 pommes (b) Determine how the rate of reaction...
1. (a) Show the mechanism for the following substitution reaction. 3 pommes (b) Determine how the rate of reaction is affected in a solvent such as water. 1 point (CH.):C- Br+ OH -- -> (CH3), C-Brº tott +(CH3),
aromatic reaction worksheet 2. b IV. fastest > slowest 3. Under each reaction, circle the correct...
aromatic reaction worksheet
2. b IV. fastest > slowest 3. Under each reaction, circle the correct operating mechanism 1) NaNH, NH. --Br 2) 1,0 EAS, SNAr, or Elimination-Addition b) FeBry HC- Br? EAS, SyAr, or Elimination-Addition 1) NaOH, 70°C ON- -Br 2)H,0 EAS, SyAr, or Elimination-Addition Topose a synthesis of each of the following compounds, from the given starting material and any other needed reagents. -OH from -CH2-CH3 c= CH2 from -CH2-CH2-CH, from
3) Write a complete Sn1 mechanism for the following reaction Also, 4) Write a complete Sn2...
3) Write a complete Sn1 mechanism for the following
reaction
Also,
4) Write a complete Sn2 mechanism for the following.
Please show transition state and list a good solvent as well.
Thank you!
3. Write a complete Sn1 mechanism for the following reaction. Вт + CH3OH CH₃CH2 CH3 4. Write a complete SN2 mechanism for the following. Show the transition state as well. Also list a good solvent. OTS + NaCN H3C 3. Write a complete sul mechanism for the...
3. In the deuterium labeled compound below nredict the products of the elimination of the following elimination rea...
3. In the deuterium labeled compound below nredict the products of the elimination of the following elimination reaction and tell whether the alkene formed contains deutenum or not. (20 pts) HC CH3 OH H2SO4(aq) IH heat нстр (ii) NaOCH.CH CH,CH,OH heat CH3 (iii) Write a detail mechanism for the formation of the product in question 3(1).
1. Name the following molecules: a) [PtBr(NH3)3]I3 b) [Ir(CO)2(OH)2]Cl c) K2[FeCl4(NO3)2] d) [((CH3)3N)3PdBr]Cl e) CoCl3H(dabco)2 2....
1. Name the following molecules: a) [PtBr(NH3)3]I3 b) [Ir(CO)2(OH)2]Cl c) K2[FeCl4(NO3)2] d) [((CH3)3N)3PdBr]Cl e) CoCl3H(dabco)2 2. Draw and give the point group for all the geometrical isomers of a molecule with the general formula: a) MA2B2 (square planar and tetrahedral) b) MA2B (“T”‐shaped and trigonal planar) c) MAB4 (trigonal bipyramidal and square pyramidal) d) MA2B3 (trigonal bipyramidal and square pyramidal) 4. Draw four distinct geometrical isomers of a metal complex of the type M(A‐CH2‐CH2‐B)2. Which of these is chiral? Give...
4. (2 points) For the following S2 reaction, (a) predict the product, including stereochemistry, and (b)...
4. (2 points) For the following S2 reaction, (a) predict the product, including stereochemistry, and (b) draw the 3D transition state structure leading to the S2 product (using lines, dashes, wedges, dotted lines for partial bonds, and any needed partial charges). (a) OTs кCN CH3 (b) Transition state structure 5. (3 points) Complete the following sequences by filling in missing reagents from the list provided. Sequential steps, if necessary, should be numbered. Он Reagent List: PCI3 pyridine НС PBr3 NaH...
For each of the following reactions, determine which ELIMINATION mechanism (E1 or 2) will occur. Alkyl...
For each of the following reactions, determine which ELIMINATION mechanism (E1 or 2) will occur. Alkyl Halide Substitution: Base Strength: Mechanism Type: 2° 3° Methyl Strong E1 1° Weak E2 Draw the mechanism that leads to ALL products for the reaction. Finally, underline the major product of the elimination reaction: NaOCH Challenge Problems: Synthesis: Predicted Ability: Good Average Poor Actual Ability: Good Average Poor Propose a synthesis from the starting material to obtain the indicated goal molecule. Note that any...
For each of the following reactions, determine which ELIMINATION mechanism (E1 or E2) will occur. Alkyl...
For each of the following reactions, determine which ELIMINATION mechanism (E1 or E2) will occur. Alkyl Halide Substitution: Methyl 1° 2° 3° Base Strength: Strong Weak Mechanism Type: E1 E2 Draw the mechanism that leads to ALL products for the reaction. Finally, underline the major product of the elimination reaction: H3C OH H2C H2C1 Br CHE
5. 10points. Determine which of substitution or elimination mechanism works best in order to form the...
5. 10points. Determine which of substitution or elimination mechanism works best in order to form the major product of the following reaction? (hint: draw chair conformation for the molecule) CH3 NaOCHCH, CH,CH,OH "CH3 Hac CH3
8.9 Consider the following competition between E2 elimination and E1 elimination. CH3 H3 solvent ...
8.9 Consider the following competition between E2 elimination and E1 elimination. CH3 H3 solvent Br:Base: CH- ex H3C t-butoxide 73 27 "pyridine % #2-alkene % #4-alkene 10 90 a. (1 point) The alkene/alkene product ratio is the dependent variable for this study. What is the (independent) variable? b. (1 point) What is (are) the data trend(s)? C. (3 points) what do the data trends tell us about elimination mechanisms? Use arrows to show the preferred pathway for t-butoxide CH3 Use...
1. (a) Show the mechanism for the following substitution reaction. 3 pommes (b) Determine how the rate of reaction is affected in a solvent such as water. 1 point (CH.):C- Br+ OH -- -> (CH3), C-Brº tott +(CH3),
aromatic reaction worksheet
2. b IV. fastest > slowest 3. Under each reaction, circle the correct operating mechanism 1) NaNH, NH. --Br 2) 1,0 EAS, SNAr, or Elimination-Addition b) FeBry HC- Br? EAS, SyAr, or Elimination-Addition 1) NaOH, 70°C ON- -Br 2)H,0 EAS, SyAr, or Elimination-Addition Topose a synthesis of each of the following compounds, from the given starting material and any other needed reagents. -OH from -CH2-CH3 c= CH2 from -CH2-CH2-CH, from
3) Write a complete Sn1 mechanism for the following
reaction
Also,
4) Write a complete Sn2 mechanism for the following.
Please show transition state and list a good solvent as well.
Thank you!
3. Write a complete Sn1 mechanism for the following reaction. Вт + CH3OH CH₃CH2 CH3 4. Write a complete SN2 mechanism for the following. Show the transition state as well. Also list a good solvent. OTS + NaCN H3C 3. Write a complete sul mechanism for the...
3. In the deuterium labeled compound below nredict the products of the elimination of the following elimination reaction and tell whether the alkene formed contains deutenum or not. (20 pts) HC CH3 OH H2SO4(aq) IH heat нстр (ii) NaOCH.CH CH,CH,OH heat CH3 (iii) Write a detail mechanism for the formation of the product in question 3(1).
4. (2 points) For the following S2 reaction, (a) predict the product, including stereochemistry, and (b) draw the 3D transition state structure leading to the S2 product (using lines, dashes, wedges, dotted lines for partial bonds, and any needed partial charges). (a) OTs кCN CH3 (b) Transition state structure 5. (3 points) Complete the following sequences by filling in missing reagents from the list provided. Sequential steps, if necessary, should be numbered. Он Reagent List: PCI3 pyridine НС PBr3 NaH...
For each of the following reactions, determine which ELIMINATION mechanism (E1 or 2) will occur. Alkyl Halide Substitution: Base Strength: Mechanism Type: 2° 3° Methyl Strong E1 1° Weak E2 Draw the mechanism that leads to ALL products for the reaction. Finally, underline the major product of the elimination reaction: NaOCH Challenge Problems: Synthesis: Predicted Ability: Good Average Poor Actual Ability: Good Average Poor Propose a synthesis from the starting material to obtain the indicated goal molecule. Note that any...
For each of the following reactions, determine which ELIMINATION mechanism (E1 or E2) will occur. Alkyl Halide Substitution: Methyl 1° 2° 3° Base Strength: Strong Weak Mechanism Type: E1 E2 Draw the mechanism that leads to ALL products for the reaction. Finally, underline the major product of the elimination reaction: H3C OH H2C H2C1 Br CHE
5. 10points. Determine which of substitution or elimination mechanism works best in order to form the major product of the following reaction? (hint: draw chair conformation for the molecule) CH3 NaOCHCH, CH,CH,OH "CH3 Hac CH3
8.9 Consider the following competition between E2 elimination and E1 elimination. CH3 H3 solvent Br:Base: CH- ex H3C t-butoxide 73 27 "pyridine % #2-alkene % #4-alkene 10 90 a. (1 point) The alkene/alkene product ratio is the dependent variable for this study. What is the (independent) variable? b. (1 point) What is (are) the data trend(s)? C. (3 points) what do the data trends tell us about elimination mechanisms? Use arrows to show the preferred pathway for t-butoxide CH3 Use...
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