Homework Answers
a ) The reaction goes via carbocation
formation(SN1 mechanism) because heating causes
dehydration and formation of least unstable 3o
carbocation.
b ) Here SN2 is followed because if SN1 occurs then the resulting carbocation will be 1o which is very very unstable.
c) Here also SN1 is followed because dehydration causes resonance stabilized allylic carbocation.
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Provide detailed mechanisms for each of the following reactions. Be certain to use arrow pushing (electron...
UVVUCOUGY 120 iz#9 Before 1:00p.m. iz #9 Before 1:00 p.m. Signature 1. Provide detailed mechanisms for...
UVVUCOUGY 120 iz#9 Before 1:00p.m. iz #9 Before 1:00 p.m. Signature 1. Provide detailed mechanisms for each of the following reactions. Be certain to use arrow pusni tions. Be certain to use arrow pushing (electron pushing) and to aw out all intermediates. If an intermediate is resonance stabilized. draw the most stable resonance contributor
Name Chemistry 235 Fall 2019 Quiz #8 Take Home Quiz - 1 - Due before 9:00...
Name Chemistry 235 Fall 2019 Quiz #8 Take Home Quiz - 1 - Due before 9:00 p.m. Monday, November 18, 2019 Signature 1. (25 pts. Provide reasonable mechanisms for each of the following reactions. Be certain to use arrow pushing (electron pushing) and to include all intermediates. If an intermediate is resonance stabilized, be sure to include the most stable resonance contributor :ci: ethanol 0 0 H2SO4 heat 20 H2SO heat
3. (24 pts.) give a reasonable mechanism for each of the following reactions.
give a reasonable mechanism for each of the following reactions. Be sure to use electron pushing (arrow pushing) and to include all intermediates. In cases where an intermediate is resonance stabilized, dry the most stable resonance contributor.
Draw out the detailed mechanisms for each step of bromination of acetanilide, aniline, and anisol...
Draw out the detailed mechanisms for each step of bromination of
acetanilide, aniline, and anisole while including the most stable
resonance contributor for each intermediate. Then rank the three in
order of activating ability and clearly explain why.
C-CH3 NH2 OCH3 Acetanilide Aniline Anisole
C-CH3 NH2 OCH3 Acetanilide Aniline Anisole
3. MECHANISMS: Provide complete, arrow-pushing mechanisms for each of the reactions shown below. Only TWO of these will...
3. MECHANISMS: Provide complete, arrow-pushing mechanisms for each of the reactions shown below. Only TWO of these will be graded but YOU MUST COMPLETE ALL FOUR TO EARN ANY CREDIT! (8 pts.) (note: only mechanism for step 1) 1. Hg(OAc), CH3OH H20 H2SO4 tocha 2. NaBH
1, Write detailed, arrow-pushing mechanisms for the following reactions. Predict the products when none are given....
1, Write detailed, arrow-pushing mechanisms for the following reactions. Predict the products when none are given. Н-о a) H2SO4 (cat.) CH3CO2H b) H2SO4 (cat.) CH,он c) H2SO4 (cat.) H2, Pd/C (no mechanism required) d) HCI e)
For the "mechanism" problems on this page, include intermediates and detailed "arrow Note: pushing" 16. Draw...
For the "mechanism" problems on this page, include intermediates and detailed "arrow Note: pushing" 16. Draw the mechanism for the following reaction, propagation steps only. (4 points) Br2 hv Br 17. Draw the mechanisms for the following reactions, using formal arrow pushing. Note: in some Vou would Ao wall to : hond ahangan.
provide mechanisms to explain the following reactions. Show all key intermediates and indicate electron flow using...
provide mechanisms to explain the following reactions. Show
all key intermediates and indicate electron flow using
arrows.
оСнз С. CH3ОН, н* Et OH H2SO4 b. Et heat
Predict the Major product(s) for the following reactions and draw their corresponding arrow-pushing mechanisms. If there...
Predict the Major product(s) for the following reactions and draw their corresponding arrow-pushing mechanisms. If there is no reaction write NR. (21 points total) detailed Show the correct stereochemistry when needed KOH THF substitution Cl Mechanism: MeOH substitution Mechanism: CI t-BuOK, DMF heat elimination Mechanism:
provide a detailed reaction mechanism for each of the reactions below. use curved arrow notation to...
provide a detailed reaction mechanism for each of the
reactions below. use curved arrow notation to describe the flow of
electrons. you do not need to show resonance stabilization of
intermediates.
To0-H HaC CH Nao DEL notu NaDEt: NAD CHauhs ELOHE CH CHAuh CH
UVVUCOUGY 120 iz#9 Before 1:00p.m. iz #9 Before 1:00 p.m. Signature 1. Provide detailed mechanisms for each of the following reactions. Be certain to use arrow pusni tions. Be certain to use arrow pushing (electron pushing) and to aw out all intermediates. If an intermediate is resonance stabilized. draw the most stable resonance contributor
Name Chemistry 235 Fall 2019 Quiz #8 Take Home Quiz - 1 - Due before 9:00 p.m. Monday, November 18, 2019 Signature 1. (25 pts. Provide reasonable mechanisms for each of the following reactions. Be certain to use arrow pushing (electron pushing) and to include all intermediates. If an intermediate is resonance stabilized, be sure to include the most stable resonance contributor :ci: ethanol 0 0 H2SO4 heat 20 H2SO heat
Draw out the detailed mechanisms for each step of bromination of
acetanilide, aniline, and anisole while including the most stable
resonance contributor for each intermediate. Then rank the three in
order of activating ability and clearly explain why.
C-CH3 NH2 OCH3 Acetanilide Aniline Anisole
C-CH3 NH2 OCH3 Acetanilide Aniline Anisole
3. MECHANISMS: Provide complete, arrow-pushing mechanisms for each of the reactions shown below. Only TWO of these will be graded but YOU MUST COMPLETE ALL FOUR TO EARN ANY CREDIT! (8 pts.) (note: only mechanism for step 1) 1. Hg(OAc), CH3OH H20 H2SO4 tocha 2. NaBH
1, Write detailed, arrow-pushing mechanisms for the following reactions. Predict the products when none are given. Н-о a) H2SO4 (cat.) CH3CO2H b) H2SO4 (cat.) CH,он c) H2SO4 (cat.) H2, Pd/C (no mechanism required) d) HCI e)
For the "mechanism" problems on this page, include intermediates and detailed "arrow Note: pushing" 16. Draw the mechanism for the following reaction, propagation steps only. (4 points) Br2 hv Br 17. Draw the mechanisms for the following reactions, using formal arrow pushing. Note: in some Vou would Ao wall to : hond ahangan.
provide mechanisms to explain the following reactions. Show
all key intermediates and indicate electron flow using
arrows.
оСнз С. CH3ОН, н* Et OH H2SO4 b. Et heat
Predict the Major product(s) for the following reactions and draw their corresponding arrow-pushing mechanisms. If there is no reaction write NR. (21 points total) detailed Show the correct stereochemistry when needed KOH THF substitution Cl Mechanism: MeOH substitution Mechanism: CI t-BuOK, DMF heat elimination Mechanism:
provide a detailed reaction mechanism for each of the
reactions below. use curved arrow notation to describe the flow of
electrons. you do not need to show resonance stabilization of
intermediates.
To0-H HaC CH Nao DEL notu NaDEt: NAD CHauhs ELOHE CH CHAuh CH
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