Homework Answers
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1- amide to carboxylic acid
2- carboxylic acid to ester
3- ester to ketone
4- ketone to imine
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The following reaction can be performed using s6 sets of reagents. Propose the sequence of reagents...
15. (8 pts) Propose a sequence of reagents to carry out the following synthetic conversion. (Note...
15. (8 pts) Propose a sequence of reagents to carry out the following synthetic conversion. (Note that you do not necessarily need to use all of the spaces provided.) List of reagents in order used.
Propose a set of reagents (and steps) for syntehsizing the following molecules from their starting materials....
Propose a set of reagents (and steps) for syntehsizing the
following molecules from their starting materials. You may use any
reagants, solvents, and conditions you deem necessary. Place your
answers above and below the reaction arrow.
Please provide explanation and any concepts to study regarding
the topic.
Problem #3 Propose a set of reagents (and steps) for synthesizing the following molecules from their starting materials. You may use any reagents, solvents, and conditions you deem necessary. Place your answers above...
3. For the reaction sequence shown below, give the product of each reaction and show the...
3. For the reaction sequence shown below, give the product of each reaction and show the mechanism of Its formation. 4. Propose a synthesis (make) for the compounds shown below. All carbon containing compounds, reagents, or reactants must be synthesized from the starting materials shown in the box. You may use any Inorganic compounds you wish. You may also use any solvents you wish, however, if a solvent participates in the reaction you must synthesize it.
Provide a sequence of reaction to convert the starting material to the product. Show all reagents...
Provide a sequence of reaction to convert the starting material
to the product. Show all reagents and synthetic intermediates. You
can use any addition carbon sources if needed but you must use the
starting material given. The mechanisms do not have to be
shown.
Synthesis 1. The following transformations cannot be perfor Uwing transformations cannot be performed in one step. Provide a sequence of reactions 10 convert the "starting material" to the "product." Show all the reagents and synthetic intermediates....
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...
11. The following transformations can not be performed in one step. Provide a sequence of reactions...
11. The following transformations can not be performed in one step. Provide a sequence of reactions to convert the "starting material to the "product." Show all the reagents and synthetic intermediates. NO MECHANISMS PLEASE!
Diethyl malonate can be prepared by the following reaction sequence. Draw the structures of each of...
Diethyl malonate can be prepared by the following reaction sequence. Draw the structures of each of the missing intermediates in the boxes provided. 4. |сH,сH он. 1. Bry PBr3 OH 2. H2O не На NaCN HSO NC CH CH-OH осH сH, CH2 HQ, heat CH2 HCl OEt Et0 How would you prepare each of the following compounds using either an acetoacetic ester synthesis or a malonic ester synthesis? Show all intermediate structures and all reagents 5. COOH
Starting only from organic reagents of 4 carbons or fewer, propose an efficient synthesis for the...
Starting only from organic reagents of 4 carbons or fewer, propose an efficient synthesis for the molecule below. You may use any necessary solvents and inorganic reagents, and can assume that all products can be isolated as needed. If only one product is to be taken on to a new step, indicate which one.
1) 2 (CH3),CHCH Br / Cul/ 4 Li? CHỊCH, CHỊCH 2) H30+ 2. Using any necessary reagents, show how the following synth...
1) 2 (CH3),CHCH Br / Cul/ 4 Li? CHỊCH, CHỊCH 2) H30+ 2. Using any necessary reagents, show how the following synthetic transformations may be achieved. Give reagents and conditions for each step. Include all synthetic intermediates compounds produced during the course of multi-step synthesis). NOTE: You may not use HOC OH 1. For each of the following questions, provide the missing reagents that can be purchased) and conditions or predict the MAJOR product. Indicate stereochemistry and identify a racemic...
12.) Propose a reaction scheme/conditions (all reagents for each step) to synthesize the following product from...
12.) Propose a reaction scheme/conditions (all reagents for each step) to synthesize the following product from benzene. (8 points) SO3H
15. (8 pts) Propose a sequence of reagents to carry out the following synthetic conversion. (Note that you do not necessarily need to use all of the spaces provided.) List of reagents in order used.
Propose a set of reagents (and steps) for syntehsizing the
following molecules from their starting materials. You may use any
reagants, solvents, and conditions you deem necessary. Place your
answers above and below the reaction arrow.
Please provide explanation and any concepts to study regarding
the topic.
Problem #3 Propose a set of reagents (and steps) for synthesizing the following molecules from their starting materials. You may use any reagents, solvents, and conditions you deem necessary. Place your answers above...
3. For the reaction sequence shown below, give the product of each reaction and show the mechanism of Its formation. 4. Propose a synthesis (make) for the compounds shown below. All carbon containing compounds, reagents, or reactants must be synthesized from the starting materials shown in the box. You may use any Inorganic compounds you wish. You may also use any solvents you wish, however, if a solvent participates in the reaction you must synthesize it.
Provide a sequence of reaction to convert the starting material
to the product. Show all reagents and synthetic intermediates. You
can use any addition carbon sources if needed but you must use the
starting material given. The mechanisms do not have to be
shown.
Synthesis 1. The following transformations cannot be perfor Uwing transformations cannot be performed in one step. Provide a sequence of reactions 10 convert the "starting material" to the "product." Show all the reagents and synthetic intermediates....
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...
11. The following transformations can not be performed in one step. Provide a sequence of reactions to convert the "starting material to the "product." Show all the reagents and synthetic intermediates. NO MECHANISMS PLEASE!
Diethyl malonate can be prepared by the following reaction sequence. Draw the structures of each of the missing intermediates in the boxes provided. 4. |сH,сH он. 1. Bry PBr3 OH 2. H2O не На NaCN HSO NC CH CH-OH осH сH, CH2 HQ, heat CH2 HCl OEt Et0 How would you prepare each of the following compounds using either an acetoacetic ester synthesis or a malonic ester synthesis? Show all intermediate structures and all reagents 5. COOH
Starting only from organic reagents of 4 carbons or fewer, propose an efficient synthesis for the molecule below. You may use any necessary solvents and inorganic reagents, and can assume that all products can be isolated as needed. If only one product is to be taken on to a new step, indicate which one.
1) 2 (CH3),CHCH Br / Cul/ 4 Li? CHỊCH, CHỊCH 2) H30+ 2. Using any necessary reagents, show how the following synthetic transformations may be achieved. Give reagents and conditions for each step. Include all synthetic intermediates compounds produced during the course of multi-step synthesis). NOTE: You may not use HOC OH 1. For each of the following questions, provide the missing reagents that can be purchased) and conditions or predict the MAJOR product. Indicate stereochemistry and identify a racemic...
12.) Propose a reaction scheme/conditions (all reagents for each step) to synthesize the following product from benzene. (8 points) SO3H
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