a. Find the appropriate reaction conditions/reagents listed over each arrow.
b. There are four stereoisomers shown for intermediate "4" but only one for "5". The word "resolved" is written over the arrow between them. What does resolved mean? How might we be converting a mixture of four structures into only one structure?
c. Write step-by-step mechanisms for (1->2 and 2->3 and 6->7)
Homework Answers
Add Answer to:
a. Find the appropriate reaction conditions/reagents listed over
each arrow.
b. There are four stereoisomers shown...
Please answer the following question correctly and completely. (Please write neatly) 1. Take a look at...
Please answer the following question correctly and completely.
(Please write neatly)
1. Take a look at this figure and do the followng:
A. Write the appropriate reaction conditions/reagents listed
over each arrow (Circled in red).
B. There are four stereoisomers shown for intermediate "4" but
only one for "5". The word "resolved" is written over the arrow
between them. What does resolved mean? How might we be converting a
mixture of four structures into only one structure?
C. Write step-by-step...
CHE 310 Homework #8 Due WED NOV 6 2. REAGENTS: Provide the reagents needed to accomplish...
CHE 310 Homework #8 Due WED NOV 6 2. REAGENTS: Provide the reagents needed to accomplish the following transformations. Clearly indicate if you need to use more than one step. (12 pts.) 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.) но Cl2 HCI Нао (note: only mechanism for step 1) он 1. Hg(OAc)2, CH,OH осн, Н-о...
1. (12 pts) Fill in the boxes over each arrow with the letter that corresponds to the reagents needed to perform each step of the multistep sequence shown below. Reagents may be used more than once,...
1. (12 pts) Fill in the boxes over each arrow with the letter that corresponds to the reagents needed to perform each step of the multistep sequence shown below. Reagents may be used more than once, or not all. Pay close attention to the numbered carbons in the starting material, and be sure that your answer accounts for the position of these carbons in the final product. 1 3 3 3 2 2 MCPBA CF3SO3H A) HOCH3, DCC, DMAP E)...
For 1 - 3, design reasonable syntheses of each of the target molecules using the provided...
For 1 - 3, design reasonable syntheses of each of the target molecules using the provided starting material and organic and inorganic reagents of your choice. Show the reagents needed for each step and the product of each step. Do not show any mechanisms. Please put all your answers on this sheet. Write your answers like this (actual number of starting steps may vary)material reagent(s) reagent(s) ABCD target Two equally reasonable routes are possible Can you find them both? (For...
4 Synthesis of lohexene by Dehydration - Pre-Lab Assignment de drated with a strong and high...
4 Synthesis of lohexene by Dehydration - Pre-Lab Assignment de drated with a strong and high A w a y 's G UPAC 3) Explain why two products are formed from the dehydration of 3-hexanol, but only ONE product is formed from the dehydration of 3-pentanol. (Consider tr a d isomers only, not cis/trans stereoisomers.) 2. In an organic synthesis, reactions are sometimes performed in sequence to convert one functional group into another Complete this multi-step reaction sequence on paper:...
Several reagents and several organic structures are shown below. Construct a multistep synthetic route from the...
Several reagents and several organic
structures are shown below. Construct a multistep synthetic route
from the reactant 2-methyl-1-butene to the product
3-bromo-2-methyl-2-butanol by dragging the appropriate pieces into
the bins. Note that each bin will hold only one item, and not every
given reagent or structure will be used.
HINT:
Start by locating the structures of
2-methyl-1-butene and 3-bromo-2-methyl-2-butanol and placing them
in their bins. Note that the final product is a vicinal halohydrin,
since it has halogen and hydroxyl...
Consider the reaction below. Note that the stereochemistry of the product is now shown: 12 points....
Consider the reaction below. Note that the stereochemistry of the product is now shown: 12 points. 5. Br2 CH2Cl2 Br Br a. Draw the most stable chair conformation of the starting material (i.e. the alkene). Use the chair template provided on your answer sheet. You do not need to draw ring hydrogens. (2 points) b. Draw a detailed stepwise mechanism for the reaction. Draw all intermediates and use curved arrows to show 'electron movement'. If multiple stereoisomers of the same...
1. Consider the following molecule (12 marks total) i. Provide the reaction conditions, and major product,...
1. Consider the following molecule (12 marks total) i. Provide the reaction conditions, and major product, for the monobromination of this molecule (2 marks) ii. Provide the full arrow pushing mechanism for the formation of the major product (making sure to include all initiation, and propagation steps as well as one termination step) (4 marks) (Continuation of Question 1) iii. Provide an explanation for why only one product is obtained through monobromination of this molecule (2 marks) iv. When reacting...
(References) Not Submitted Give IUPAC names for the following structures. If appropriate, specify relative stereochemistry. 1st...
(References) Not Submitted Give IUPAC names for the following structures. If appropriate, specify relative stereochemistry. 1st structure: 1,3- 2nd structure: cyclopropoxy Submit Answer Try Another Version 10 item attempts remaining Br + HCECH + H2C-CH, H₂C & ОН Hic . Hoc m -CECH Br HCECH OTBDMS OTBDMS H3C OTBDMS HC OH HEC Shown above is the stepwise synthesis of (7Z, TIE)-7,11-hexadecadien-1-ol, the key intermediate for synthesis of Gossyplure, the sex pheromone of the pink bollworm. From the choices provided below,...
please snswer all thanks 5. For the following reaction step, indicate which pattern of arrow pushing...
please snswer all thanks
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one. A. proton transfer C. nucleophilic attack B. loss of leaving group D. rearrangement 6. The following reaction has three mechanistic steps (down, across, and up), Draw all of the curved arrows necessary to complete the mechanism. (Hint: there should be 4 arrows total) HBO OH Br H-Br OH2 + Hö 7. Draw the most likely structure of the following cation...
Please answer the following question correctly and completely.
(Please write neatly)
1. Take a look at this figure and do the followng:
A. Write the appropriate reaction conditions/reagents listed
over each arrow (Circled in red).
B. There are four stereoisomers shown for intermediate "4" but
only one for "5". The word "resolved" is written over the arrow
between them. What does resolved mean? How might we be converting a
mixture of four structures into only one structure?
C. Write step-by-step...
CHE 310 Homework #8 Due WED NOV 6 2. REAGENTS: Provide the reagents needed to accomplish the following transformations. Clearly indicate if you need to use more than one step. (12 pts.) 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.) но Cl2 HCI Нао (note: only mechanism for step 1) он 1. Hg(OAc)2, CH,OH осн, Н-о...
1. (12 pts) Fill in the boxes over each arrow with the letter that corresponds to the reagents needed to perform each step of the multistep sequence shown below. Reagents may be used more than once, or not all. Pay close attention to the numbered carbons in the starting material, and be sure that your answer accounts for the position of these carbons in the final product. 1 3 3 3 2 2 MCPBA CF3SO3H A) HOCH3, DCC, DMAP E)...
For 1 - 3, design reasonable syntheses of each of the target molecules using the provided starting material and organic and inorganic reagents of your choice. Show the reagents needed for each step and the product of each step. Do not show any mechanisms. Please put all your answers on this sheet. Write your answers like this (actual number of starting steps may vary)material reagent(s) reagent(s) ABCD target Two equally reasonable routes are possible Can you find them both? (For...
4 Synthesis of lohexene by Dehydration - Pre-Lab Assignment de drated with a strong and high A w a y 's G UPAC 3) Explain why two products are formed from the dehydration of 3-hexanol, but only ONE product is formed from the dehydration of 3-pentanol. (Consider tr a d isomers only, not cis/trans stereoisomers.) 2. In an organic synthesis, reactions are sometimes performed in sequence to convert one functional group into another Complete this multi-step reaction sequence on paper:...
Several reagents and several organic
structures are shown below. Construct a multistep synthetic route
from the reactant 2-methyl-1-butene to the product
3-bromo-2-methyl-2-butanol by dragging the appropriate pieces into
the bins. Note that each bin will hold only one item, and not every
given reagent or structure will be used.
HINT:
Start by locating the structures of
2-methyl-1-butene and 3-bromo-2-methyl-2-butanol and placing them
in their bins. Note that the final product is a vicinal halohydrin,
since it has halogen and hydroxyl...
Consider the reaction below. Note that the stereochemistry of the product is now shown: 12 points. 5. Br2 CH2Cl2 Br Br a. Draw the most stable chair conformation of the starting material (i.e. the alkene). Use the chair template provided on your answer sheet. You do not need to draw ring hydrogens. (2 points) b. Draw a detailed stepwise mechanism for the reaction. Draw all intermediates and use curved arrows to show 'electron movement'. If multiple stereoisomers of the same...
1. Consider the following molecule (12 marks total) i. Provide the reaction conditions, and major product, for the monobromination of this molecule (2 marks) ii. Provide the full arrow pushing mechanism for the formation of the major product (making sure to include all initiation, and propagation steps as well as one termination step) (4 marks) (Continuation of Question 1) iii. Provide an explanation for why only one product is obtained through monobromination of this molecule (2 marks) iv. When reacting...
(References) Not Submitted Give IUPAC names for the following structures. If appropriate, specify relative stereochemistry. 1st structure: 1,3- 2nd structure: cyclopropoxy Submit Answer Try Another Version 10 item attempts remaining Br + HCECH + H2C-CH, H₂C & ОН Hic . Hoc m -CECH Br HCECH OTBDMS OTBDMS H3C OTBDMS HC OH HEC Shown above is the stepwise synthesis of (7Z, TIE)-7,11-hexadecadien-1-ol, the key intermediate for synthesis of Gossyplure, the sex pheromone of the pink bollworm. From the choices provided below,...
please snswer all thanks
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one. A. proton transfer C. nucleophilic attack B. loss of leaving group D. rearrangement 6. The following reaction has three mechanistic steps (down, across, and up), Draw all of the curved arrows necessary to complete the mechanism. (Hint: there should be 4 arrows total) HBO OH Br H-Br OH2 + Hö 7. Draw the most likely structure of the following cation...
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