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Worksheet 12.1 1. For the following reaction: но OH CHE : H • Indicate which reagent...
7) Consider the following reaction of an alkene with acidic water which we will cover in...
7) Consider the following reaction of an alkene with acidic water which we will cover in chapter 4 (4.9). (H30 represents a generic acid like HNO3, H2SO4, etc.) OH The reaction mechanism contains 3 steps ぶー Step 1 Step 2 Step 3 a) In step 1, add in the appropriate curved arrows to show how cyclopentene and hydronium become the cyclopentyl cation and water. Label the nucleophile and electrophile b) In step 2, draw intermediate A that is formed when...
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...
28. (a)ldentify the electrophile and nucleophile in the following reaction and show the electron movement with...
28. (a)ldentify the electrophile and nucleophile in the following reaction and show the electron movement with arrows. Br + HBr Elechrophite bodopik (b)Write the initiation step for the following reaction. Show the electron movement with appropriate arrows. +CI2 Hea +HCI H-H 46 C-H 40 NH-F 1 1-1 151 Multiple covalent bonds C-C %5 728
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?...
OH H+ CH3 H3C OH Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution between...
OH H+ CH3 H3C OH Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution between an alcohol and a carboxylic acid; this process is called the Fischer esterification reaction. Because the alcohol oxygen is a poor nucleophile, the carbonyl carbon is made a better electrophile by protonation of the carbonyl oxygen. The steps of the synthesis are all reversible. The reaction is generally driven to completion by using an excess of the liquid alcohol as a solvent, or by...
1. By following the curved arrows, draw the product(s) of each of the following reaction steps. Also indicate which...
1. By following the curved arrows, draw the product(s) of each of the following reaction steps. Also indicate which species is the electrophile and which is the nucleophile. a. CH3CH2 –Br: -NH3 CH3 CH3 HO: CH3 CH3 c. CH2C=CCH;
Which of the following cannot be a nucleophile? Identify the sequence of curved arrows (electron movement)...
Which of the following cannot be a nucleophile? Identify the sequence of curved arrows (electron movement) in the steps of the H OH
Use curved arrows to indicate the flow of electrons for the following elementary steps. label each...
Use
curved arrows to indicate the flow of electrons for the following
elementary steps. label each step of the proper name such as Sn2,
E2, electrophile elimination, bond dissociation, coordination,
nucleophilic addition, electrophilic addition, or nucleophilic
elimination
These are the answers I had but they are incorrect... could
you explain which are correct?
4. Use curved arrow to indicate the flow of electrons for the following elementary steps. Label each-st with a proper name such as S 2, E2, electrophile...
complete the following reaction mechanisms by drawing the correct product or intermediate formed in each reaction....
complete the following reaction mechanisms by drawing the
correct product or intermediate formed in each reaction. on the
side of the reactants, label the nucleophile and the electrophile
(front)
show using electron-pushinh arrows how the anion shown is
converted to two other resonance structures (back)
Complete the Following Reaction Mechanisms by drawing the correcting product or intermediate formed in each reaction. On the side of the reactants, label the nucleophile and electrophile. (4 points each) Ci Me H Ме Me...
The reaction show is an reaction Show the first step in this reaction CH,OH b What...
The reaction show is an reaction Show the first step in this reaction CH,OH b What is the geometry at the reaction center in the intermediate step? Redraw the intermediate from stepa, add the curved arrows and show the final step slone wib the resulting products. d. How many stereoisomers result from this reaction? Is the final product chiral? Why or why not? the product is chiral, draw all stereoisomers formed.
7) Consider the following reaction of an alkene with acidic water which we will cover in chapter 4 (4.9). (H30 represents a generic acid like HNO3, H2SO4, etc.) OH The reaction mechanism contains 3 steps ぶー Step 1 Step 2 Step 3 a) In step 1, add in the appropriate curved arrows to show how cyclopentene and hydronium become the cyclopentyl cation and water. Label the nucleophile and electrophile b) In step 2, draw intermediate A that is formed when...
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...
28. (a)ldentify the electrophile and nucleophile in the following reaction and show the electron movement with arrows. Br + HBr Elechrophite bodopik (b)Write the initiation step for the following reaction. Show the electron movement with appropriate arrows. +CI2 Hea +HCI H-H 46 C-H 40 NH-F 1 1-1 151 Multiple covalent bonds C-C %5 728
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?...
OH H+ CH3 H3C OH Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution between an alcohol and a carboxylic acid; this process is called the Fischer esterification reaction. Because the alcohol oxygen is a poor nucleophile, the carbonyl carbon is made a better electrophile by protonation of the carbonyl oxygen. The steps of the synthesis are all reversible. The reaction is generally driven to completion by using an excess of the liquid alcohol as a solvent, or by...
1. By following the curved arrows, draw the product(s) of each of the following reaction steps. Also indicate which species is the electrophile and which is the nucleophile. a. CH3CH2 –Br: -NH3 CH3 CH3 HO: CH3 CH3 c. CH2C=CCH;
Which of the following cannot be a nucleophile? Identify the sequence of curved arrows (electron movement) in the steps of the H OH
Use
curved arrows to indicate the flow of electrons for the following
elementary steps. label each step of the proper name such as Sn2,
E2, electrophile elimination, bond dissociation, coordination,
nucleophilic addition, electrophilic addition, or nucleophilic
elimination
These are the answers I had but they are incorrect... could
you explain which are correct?
4. Use curved arrow to indicate the flow of electrons for the following elementary steps. Label each-st with a proper name such as S 2, E2, electrophile...
complete the following reaction mechanisms by drawing the
correct product or intermediate formed in each reaction. on the
side of the reactants, label the nucleophile and the electrophile
(front)
show using electron-pushinh arrows how the anion shown is
converted to two other resonance structures (back)
Complete the Following Reaction Mechanisms by drawing the correcting product or intermediate formed in each reaction. On the side of the reactants, label the nucleophile and electrophile. (4 points each) Ci Me H Ме Me...
The reaction show is an reaction Show the first step in this reaction CH,OH b What is the geometry at the reaction center in the intermediate step? Redraw the intermediate from stepa, add the curved arrows and show the final step slone wib the resulting products. d. How many stereoisomers result from this reaction? Is the final product chiral? Why or why not? the product is chiral, draw all stereoisomers formed.
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