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Choose all products that are formed when this ester is used in a Claisen reaction? ÇO2C2H5...
The Claisen condensation converts 2 molecules of an ester into a ?-keto ester. The reaction starts...
The Claisen condensation converts 2 molecules of an ester into a
?-keto ester. The reaction starts with the ester in an
alkoxide/alcohol solution and is worked up with acid to form the
neutral ?-keto ester product.
Please show what goes in each box!! What I put shown below are
all incorrect.
The Claisen condensation converts 2 molecules of an ester into a β-keto ester. The reaction starts with the ester in an alkoxide/alcohol solution and is worked up with acid...
Choose the correct answer and explain why you choose that answer. -Page 2 4. The Claisen...
Choose the correct answer and explain why you choose that
answer.
-Page 2 4. The Claisen condensation produces which of these? a- An α-keto ester b.AB-keto ester C, A β-hydroxy ester d. A B-hydroxyaldehyde e. A B-di ketone 5. Which compound could be prepared using a Michael reaction? 0 0 o 1 CCH3 СОС2HS a. I d. IV e. v Part 2 t. The product (s) of the reaction of 2 mol of ethyl butanoate sodium ethoxide is(are) : b....
The Claisen condensation converts 2 molecules of an ester into a B-keto ester. The reaction starts...
The Claisen condensation converts 2 molecules of an ester into a B-keto ester. The reaction starts with the ester in an alkoxide/alcohol solution and is worked up with acid to form the neutral B-keto ester product. :0 O: 1. -OCH2CH3/CH3CH20H 2 2. H30 OH Show the curved-arrow mechanism for the Claisen condensation of ethyl ethanoate treated with ethoxide ion. Include all formal charges and nonbonding electrons. In each step, draw only the species that react in that step. If an...
12. Explain why a Claisen reaction occurs with ester E, but not with ester F. Eto...
12. Explain why a Claisen reaction occurs with ester E, but not with ester F. Eto EIO E F 13. Give the major organic product of each Claisen reaction. In some cases, no reaction is expected. a. NaOEt a. NaoMe OMe b. mild H Et01 b. mild H a. NaOMe a. NaOme. Meo MeO b. mild H MeO b. mild Hº 13 continued a. NaOE AOE a. NaOE, O Eto OE OE OEt c. mild H b. mild H a....
Draw the products formed when each ester is treated with lithium hydroxide and water. Reaction A...
Draw the products formed when each ester is treated with lithium hydroxide and water. Reaction A Select Draw Rings More Erase LiOH CH,CH,CH(CH, JOC=OCH(CH3)2 HO @ 2 Q Reaction B Select Draw Rings More Erase LiOH CH,CH,CH,C=00CH,CHCH HO Reaction C Select Draw Rings More Erase LiOH H, @ 21a, Reaction D Select Draw Rings More Erase LiOH HO
1) The following mixed Claisen reaction produces only a trace amount of product. The starting materials...
1) The following mixed Claisen reaction produces only a trace amount of product. The starting materials are obtained upon isolation. Why? CO2Me CO2Me NaOME MeOH CO Me / dil. HCI Ph A. pka of the propyl ester is too high B. there is only one a-proton C. the benzoate ester is resonance stabilized D. pka of the propyl ester is too low 2) Which of the following compounds will be formed from the reaction below: NaOH Ph H2O, THE 5...
What is the functional group formed when the reaction below occurs? What is the functional group...
What is the functional group formed when the reaction below
occurs?
What is the functional group formed when the reaction below occurs? N Select one: O A. alkene O B. ether O c. ester O D. carboxylic acid O E. alcohol
write the structures for all the alkene products that could resonably be formed from each of...
write the structures for all the alkene products that could
resonably be formed from each of the following compounds under yhe
indicated reaction.
4. Write the structures for all the alkene products (regio and stereo isomers) that could reasonably be formed from each of the following compounds under the indicated reaction conditions. Where more than one alkene is produced, specify the one that is the major product. (5) a. 3-Methyl-3-pentanol (sulfuric acid, 80°C) b. 2,3-Dimethyl-2-butanol (phosphoric acid, 120°C)
organic chemistry. why is CH3ONa not used in the claisen condensation of ethyl acetate 12. Why...
organic chemistry. why is CH3ONa not used in the claisen
condensation of ethyl acetate
12. Why is CH3ONa not used in the Claisen condensation of ethyl acetate? a. CH30 is a weaker base than the CH3CH20-which is used. b. CH3O- Nat is more difficult to prepare than CH3CH2O Nat. c. CH3O- would abstract a proton from the ethyl group of the ester. d. Use of CH,O- Na would result in transesterification e. CH,O- Na can be used as well as...
In the following reaction two major substitution products are formed. What relationship do these two products...
In the following reaction two major substitution products are
formed. What relationship do these two products have?
H14.34-Level 2 In the following reaction two major substitution products are formed. What relationship do these two products have? CI-S-CH3 OH MeOH OMe O A Diastereomers O B Enantiomers ° C Ameso compound is formed O D Constitutional isomers O E No relationship at all
The Claisen condensation converts 2 molecules of an ester into a
?-keto ester. The reaction starts with the ester in an
alkoxide/alcohol solution and is worked up with acid to form the
neutral ?-keto ester product.
Please show what goes in each box!! What I put shown below are
all incorrect.
The Claisen condensation converts 2 molecules of an ester into a β-keto ester. The reaction starts with the ester in an alkoxide/alcohol solution and is worked up with acid...
Choose the correct answer and explain why you choose that
answer.
-Page 2 4. The Claisen condensation produces which of these? a- An α-keto ester b.AB-keto ester C, A β-hydroxy ester d. A B-hydroxyaldehyde e. A B-di ketone 5. Which compound could be prepared using a Michael reaction? 0 0 o 1 CCH3 СОС2HS a. I d. IV e. v Part 2 t. The product (s) of the reaction of 2 mol of ethyl butanoate sodium ethoxide is(are) : b....
The Claisen condensation converts 2 molecules of an ester into a B-keto ester. The reaction starts with the ester in an alkoxide/alcohol solution and is worked up with acid to form the neutral B-keto ester product. :0 O: 1. -OCH2CH3/CH3CH20H 2 2. H30 OH Show the curved-arrow mechanism for the Claisen condensation of ethyl ethanoate treated with ethoxide ion. Include all formal charges and nonbonding electrons. In each step, draw only the species that react in that step. If an...
12. Explain why a Claisen reaction occurs with ester E, but not with ester F. Eto EIO E F 13. Give the major organic product of each Claisen reaction. In some cases, no reaction is expected. a. NaOEt a. NaoMe OMe b. mild H Et01 b. mild H a. NaOMe a. NaOme. Meo MeO b. mild H MeO b. mild Hº 13 continued a. NaOE AOE a. NaOE, O Eto OE OE OEt c. mild H b. mild H a....
Draw the products formed when each ester is treated with lithium hydroxide and water. Reaction A Select Draw Rings More Erase LiOH CH,CH,CH(CH, JOC=OCH(CH3)2 HO @ 2 Q Reaction B Select Draw Rings More Erase LiOH CH,CH,CH,C=00CH,CHCH HO Reaction C Select Draw Rings More Erase LiOH H, @ 21a, Reaction D Select Draw Rings More Erase LiOH HO
1) The following mixed Claisen reaction produces only a trace amount of product. The starting materials are obtained upon isolation. Why? CO2Me CO2Me NaOME MeOH CO Me / dil. HCI Ph A. pka of the propyl ester is too high B. there is only one a-proton C. the benzoate ester is resonance stabilized D. pka of the propyl ester is too low 2) Which of the following compounds will be formed from the reaction below: NaOH Ph H2O, THE 5...
What is the functional group formed when the reaction below
occurs?
What is the functional group formed when the reaction below occurs? N Select one: O A. alkene O B. ether O c. ester O D. carboxylic acid O E. alcohol
write the structures for all the alkene products that could
resonably be formed from each of the following compounds under yhe
indicated reaction.
4. Write the structures for all the alkene products (regio and stereo isomers) that could reasonably be formed from each of the following compounds under the indicated reaction conditions. Where more than one alkene is produced, specify the one that is the major product. (5) a. 3-Methyl-3-pentanol (sulfuric acid, 80°C) b. 2,3-Dimethyl-2-butanol (phosphoric acid, 120°C)
organic chemistry. why is CH3ONa not used in the claisen
condensation of ethyl acetate
12. Why is CH3ONa not used in the Claisen condensation of ethyl acetate? a. CH30 is a weaker base than the CH3CH20-which is used. b. CH3O- Nat is more difficult to prepare than CH3CH2O Nat. c. CH3O- would abstract a proton from the ethyl group of the ester. d. Use of CH,O- Na would result in transesterification e. CH,O- Na can be used as well as...
In the following reaction two major substitution products are
formed. What relationship do these two products have?
H14.34-Level 2 In the following reaction two major substitution products are formed. What relationship do these two products have? CI-S-CH3 OH MeOH OMe O A Diastereomers O B Enantiomers ° C Ameso compound is formed O D Constitutional isomers O E No relationship at all
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