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Suggest a procedure for making the following aldol product without side products. What starting materials and...
Suggest a procedure for making the following aldol product without side products. What starting materials and...
Suggest a procedure for making the following aldol product without side products. What starting materials and reagents would you use? HO
Draw the starting materials for the compound given below via directed aldol condensation reaction. Show the...
Draw the starting materials for the compound given below via directed aldol condensation reaction. Show the resonance structure for the following, α,β-unsaturated ketone. 1. Propose reagents or products as needed (you will need sets of reagents for arrows pointing left and 1 product for the right facing arrow). 2. H3C-SH HO
D8 April 9, 2019 Draw the starting materials for the compound given below via directed aldol...
D8 April 9, 2019 Draw the starting materials for the compound given below via directed aldol condensation reaction. resonance structure for the following, α,β-unsaturated ketone. 1. Show the 2. Propose reagents or products as needed (you will need sets of reagents for arrows pointing left and 1 product for the right facing arrow). H3C-SH CH3 HO
QUESTION 33 2 points ($18.7) What is the product of the following crossed aldol condensation? (Complete...
QUESTION 33 2 points ($18.7) What is the product of the following crossed aldol condensation? (Complete aldol reactions using two different aldehydes or ketones.) Reagents: acetyl aldehyde + p-chlorobenzaldehyde (no alpha hydrogen) + NaOH a strong base + H20 and heat.) HOA o oo QUESTION 34 2 points (518.7) Which compound, in a reaction with the ketone below, would produce the fewest side products? (Identify which aldol reactions will proceed in high yield). Reagents: starting material acetone + (1) NaOH...
5. Give the products for the following aldol reactions.
5. Give the products for the following aldol reactions.6. Cinnamaldehyde can be synthesized by a mixed aldol condensation reaction. Show the starting materials you would use and write out the reaction mechanism.
3. Draw all the aldol addition products that are formed when a mixture of acetaldehyde and...
3. Draw all the aldol addition products that are formed when a
mixture of acetaldehyde and pentanal is treated with aqueous sodium
hydroxide.
4. A reaction, such as described in question 3, which produces a
mixture of products is generally not useful for organic synthesis.
Suggest a change in the reaction starting materials for question 3
that would produce a single, similar product.
5. Draw a generic mechanism for aldol condensation.
6. The last step for an aldol condensation involves...
Suggest a synthesis for compound 1 using as starting materials/reactants benzaldehyde, bromoethane, and Ph3P+Ch3Br- and...
Suggest a synthesis for compound 1 using as starting
materials/reactants benzaldehyde, bromoethane, and Ph3P+Ch3Br- and
the following reagents/conditions Mg; PCC; HzO2, NaOH; H3O+; BuLI;
and BH3, THF
(c) Suggest a synthesis for compound 1 using as starting materials/reactants benzaldehye, bromoethane, and Ph3P CH3 Br- and the following reagents/conditions - Mg; PCC; H2O2, NAOH; H30* BuLi; and BH3, THF. Use of the starting materials/reactants and reagents/conditions is strongly recommended in order to solve. Start by counting the HO DBH3,1HF total number...
2. Suggest the structure of a starting alkene and the reagents that can be used to generate the following product in...
2. Suggest the structure of a starting alkene and the reagents that can be used to generate the following product in the highest yield with the least amount of other organic products. OH
9.RETROSYNTHETIC ANALYSIS Give a reasonable synthesis for the following compound from the indicated starting materials. You...
9.RETROSYNTHETIC ANALYSIS Give a reasonable synthesis for the following compound from the indicated starting materials. You may use any other organic reagents or inorganic reagents you wish. The desired product for each reaction must be the MAJOR PRODUCT. Give the reactants, conditions (where appropriate), and products of each synthetic step but NO MECHANISMS. [4 points) OH Use to make HO
(2) Retrosynthesis. Provide the starting materials needed to yield the following products through either an aldol...
(2) Retrosynthesis. Provide the starting materials needed to yield the following products through either an aldol reaction/condensation, a Michael addition, or a Robinson annulation. If a specific base must be used to aid selectivity of any step, please specify. (20 pts)
Suggest a procedure for making the following aldol product without side products. What starting materials and reagents would you use? HO
Draw the starting materials for the compound given below via directed aldol condensation reaction. Show the resonance structure for the following, α,β-unsaturated ketone. 1. Propose reagents or products as needed (you will need sets of reagents for arrows pointing left and 1 product for the right facing arrow). 2. H3C-SH HO
D8 April 9, 2019 Draw the starting materials for the compound given below via directed aldol condensation reaction. resonance structure for the following, α,β-unsaturated ketone. 1. Show the 2. Propose reagents or products as needed (you will need sets of reagents for arrows pointing left and 1 product for the right facing arrow). H3C-SH CH3 HO
QUESTION 33 2 points ($18.7) What is the product of the following crossed aldol condensation? (Complete aldol reactions using two different aldehydes or ketones.) Reagents: acetyl aldehyde + p-chlorobenzaldehyde (no alpha hydrogen) + NaOH a strong base + H20 and heat.) HOA o oo QUESTION 34 2 points (518.7) Which compound, in a reaction with the ketone below, would produce the fewest side products? (Identify which aldol reactions will proceed in high yield). Reagents: starting material acetone + (1) NaOH...
5. Give the products for the following aldol reactions.6. Cinnamaldehyde can be synthesized by a mixed aldol condensation reaction. Show the starting materials you would use and write out the reaction mechanism.
3. Draw all the aldol addition products that are formed when a
mixture of acetaldehyde and pentanal is treated with aqueous sodium
hydroxide.
4. A reaction, such as described in question 3, which produces a
mixture of products is generally not useful for organic synthesis.
Suggest a change in the reaction starting materials for question 3
that would produce a single, similar product.
5. Draw a generic mechanism for aldol condensation.
6. The last step for an aldol condensation involves...
Suggest a synthesis for compound 1 using as starting
materials/reactants benzaldehyde, bromoethane, and Ph3P+Ch3Br- and
the following reagents/conditions Mg; PCC; HzO2, NaOH; H3O+; BuLI;
and BH3, THF
(c) Suggest a synthesis for compound 1 using as starting materials/reactants benzaldehye, bromoethane, and Ph3P CH3 Br- and the following reagents/conditions - Mg; PCC; H2O2, NAOH; H30* BuLi; and BH3, THF. Use of the starting materials/reactants and reagents/conditions is strongly recommended in order to solve. Start by counting the HO DBH3,1HF total number...
2. Suggest the structure of a starting alkene and the reagents that can be used to generate the following product in the highest yield with the least amount of other organic products. OH
9.RETROSYNTHETIC ANALYSIS Give a reasonable synthesis for the following compound from the indicated starting materials. You may use any other organic reagents or inorganic reagents you wish. The desired product for each reaction must be the MAJOR PRODUCT. Give the reactants, conditions (where appropriate), and products of each synthetic step but NO MECHANISMS. [4 points) OH Use to make HO
(2) Retrosynthesis. Provide the starting materials needed to yield the following products through either an aldol reaction/condensation, a Michael addition, or a Robinson annulation. If a specific base must be used to aid selectivity of any step, please specify. (20 pts)
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