Avoid using PKA values to answer the following question: Why is Sodium Amide (NaNH2) a stronger...
Avoid using PKA values to answer the following question:
Why is Sodium Amide (NaNH2) a stronger base & stronger nucleophile than Sodium Methoxide (Ch3Na+O-)
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Avoid using PKA values to answer the following question:
Why is Sodium Amide (NaNH2) a stronger...
Question 7 You are ready to carry out a reaction between propyne and sodium amide (NaNH2),...
Question 7 You are ready to carry out a reaction between propyne and sodium amide (NaNH2), and you reaction. In which of the following solvents this reaction can only proceed? ethanol: pk. - 16 NH3: pK,-38 terminal proton of propyne: pk, -25 water: pK. 15.7 acetone: pKa-19 methanol: pK, 15.5 H3C-CECNa CH3OH acetone Liquid NH3 H2O CH CH2OH
which of the two is a stronger base: (CH3COONa) or sodium methoxide(NaPCH3) and why?
which of the two is a stronger base: (CH3COONa) or sodium methoxide(NaPCH3) and why?
6. For the following pairs indicate which is the stronger nucleophile and briefly, why you came...
6. For the following pairs indicate which is the stronger nucleophile and briefly, why you came to that conclusion 2. Water HOVs Sodium hydroxide (NaOH) (0.5) b. Potassium iodide (Kl) vs Potassium Fluoride (KF) (0.5) Sodium methoxide (NaOCH) Vs. Sodium tert-butoxide (NaOCICH) (0.5) 7. A. If the concentration of an S. 1 reaction is doubled what happens to the rate of the reaction? 10.25) B. in an 52 reaction, when the concentration of the 1-bromopentane is doubled, what happens to...
Additional Questions: 15. (a) An alcohol (pka = 15) is reacted with NaNH, (pka = 36)....
Additional Questions: 15. (a) An alcohol (pka = 15) is reacted with NaNH, (pka = 36). What role does the alcohol play (acid, base, no role)? (b) Draw the reaction of ROH and NaNH2. Use curved arrows to show electron movement R-O-H + O NHA Na slavonotons boi gelts, Part A define NaNH2 as acting as a base and not as a nucleophile? Why do we define 185 or product of the following reaction. What role does the alcohol play?...
Which of the choices explains why one nucleophile is stronger than another nucleophile? More than one...
Which of the choices explains why one nucleophile is stronger than another nucleophile? More than one answer is possible. It is also possible that NONE of these is correct. 7 A stronger nucleophile is larger than another nucleophile. A stronger nucleophile has a less electronegative nucleophilic atom than another nucleophile. A stronger nucleophile has less steric hindrance than another nucleophile. Using this information, in methanol, CH3OH, which of the following is a stronger nucleophile, trimethylamine, (CH3)3N, or dimethylether, (CH3)20? SS...
Draw the structure of the starting material needed to make 2-methylhept-3-yne using sodium amide in liquid...
Draw the structure of the starting material needed to make 2-methylhept-3-yne using sodium amide in liquid ammonia, followed by 1-bromopropane. The starting hydrocarbon must have no more than five carbons. 1) NaNH2, NH3(l) 2) CH3CH2CH2Br + NaBr
Explain why the different positions have different pKa values, using resonance structures. The pka of phenol...
Explain why the different positions have different pKa values,
using resonance structures.
The pka of phenol (C6H5OH) is 10.0. When a nitro group (NO) is attached to the ring, the pka decreases. Explain why the different positions have different pka values, using resonance structures. OH OH OH - ၄ NO, NO₂ 10. 0 pK, = 7 .23 8.35 7.1
Please answer all 3 questions QUESTION What is the major product of the following reaction? 8R...
Please answer all 3 questions
QUESTION What is the major product of the following reaction? 8R QUESTION 2 From the data given in the right-hand box, what is the specific rotation, (alp, of the alcohol produced in the Sy2 reaction shown below? H H гон OH Сонуснан, HOCHE CECH CH Br Cotia lale -99 lalo = ? lalo = -34.6 34,6 -9.9 0.0 -9.9 QUESTION 3 Which of the following best describes the reaction of sodium metal with methanol to...
For the following reaction, which reaction will be faster (Left or Right)? Why? Click on the...
For the following reaction, which reaction will be faster (Left or Right)? Why? Click on the reaction that will be faster AND the right reason I + OH or I + OOCCH, Left Right Because the correct answer performs an elimination reaction while the incorrect one does a substitution reaction Because the correct answer has a stronger base than the incorrect answer. Resonance makes a stronger base. Because the correct answer has a stronger base than the incorrect answer. Resonance...
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles....
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles. ✓ Substitution and elimination reactions and mechanisms using curved arrows. Leaving group ability. Learning Objectives After completing this activity students should be able to: ✓ Predict the role of an alcohol in the Williamson Ether Synthesis and Fisher Esterification. Determine that protonation of an alcohol affords stronger electrophiles because of better, more stabilized, leaving groups. Conversion of Alcohols to Electrophiles Protonation RCH,OH + H...
Question 7 You are ready to carry out a reaction between propyne and sodium amide (NaNH2), and you reaction. In which of the following solvents this reaction can only proceed? ethanol: pk. - 16 NH3: pK,-38 terminal proton of propyne: pk, -25 water: pK. 15.7 acetone: pKa-19 methanol: pK, 15.5 H3C-CECNa CH3OH acetone Liquid NH3 H2O CH CH2OH
6. For the following pairs indicate which is the stronger nucleophile and briefly, why you came to that conclusion 2. Water HOVs Sodium hydroxide (NaOH) (0.5) b. Potassium iodide (Kl) vs Potassium Fluoride (KF) (0.5) Sodium methoxide (NaOCH) Vs. Sodium tert-butoxide (NaOCICH) (0.5) 7. A. If the concentration of an S. 1 reaction is doubled what happens to the rate of the reaction? 10.25) B. in an 52 reaction, when the concentration of the 1-bromopentane is doubled, what happens to...
Additional Questions: 15. (a) An alcohol (pka = 15) is reacted with NaNH, (pka = 36). What role does the alcohol play (acid, base, no role)? (b) Draw the reaction of ROH and NaNH2. Use curved arrows to show electron movement R-O-H + O NHA Na slavonotons boi gelts, Part A define NaNH2 as acting as a base and not as a nucleophile? Why do we define 185 or product of the following reaction. What role does the alcohol play?...
Which of the choices explains why one nucleophile is stronger than another nucleophile? More than one answer is possible. It is also possible that NONE of these is correct. 7 A stronger nucleophile is larger than another nucleophile. A stronger nucleophile has a less electronegative nucleophilic atom than another nucleophile. A stronger nucleophile has less steric hindrance than another nucleophile. Using this information, in methanol, CH3OH, which of the following is a stronger nucleophile, trimethylamine, (CH3)3N, or dimethylether, (CH3)20? SS...
Draw the structure of the starting material needed to make 2-methylhept-3-yne using sodium amide in liquid ammonia, followed by 1-bromopropane. The starting hydrocarbon must have no more than five carbons. 1) NaNH2, NH3(l) 2) CH3CH2CH2Br + NaBr
Explain why the different positions have different pKa values,
using resonance structures.
The pka of phenol (C6H5OH) is 10.0. When a nitro group (NO) is attached to the ring, the pka decreases. Explain why the different positions have different pka values, using resonance structures. OH OH OH - ၄ NO, NO₂ 10. 0 pK, = 7 .23 8.35 7.1
Please answer all 3 questions
QUESTION What is the major product of the following reaction? 8R QUESTION 2 From the data given in the right-hand box, what is the specific rotation, (alp, of the alcohol produced in the Sy2 reaction shown below? H H гон OH Сонуснан, HOCHE CECH CH Br Cotia lale -99 lalo = ? lalo = -34.6 34,6 -9.9 0.0 -9.9 QUESTION 3 Which of the following best describes the reaction of sodium metal with methanol to...
For the following reaction, which reaction will be faster (Left or Right)? Why? Click on the reaction that will be faster AND the right reason I + OH or I + OOCCH, Left Right Because the correct answer performs an elimination reaction while the incorrect one does a substitution reaction Because the correct answer has a stronger base than the incorrect answer. Resonance makes a stronger base. Because the correct answer has a stronger base than the incorrect answer. Resonance...
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles. ✓ Substitution and elimination reactions and mechanisms using curved arrows. Leaving group ability. Learning Objectives After completing this activity students should be able to: ✓ Predict the role of an alcohol in the Williamson Ether Synthesis and Fisher Esterification. Determine that protonation of an alcohol affords stronger electrophiles because of better, more stabilized, leaving groups. Conversion of Alcohols to Electrophiles Protonation RCH,OH + H...
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