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1. Consider the following molecule (12 marks total) i. Provide the reaction conditions, and major product,...
9) (marks = 3) Provide a reasonable multistep synthesis of the following molecule from the indicated...
9) (marks = 3) Provide a reasonable multistep synthesis of the following molecule from the indicated starting material, using any reagents necessary. Please include both a retrosynthesis and a forward synthesis (that includes the product and reagents of each individual step in your synthesis). Meo. = Me Me as a racemic mixture These reagents are your only sources of carbon and both are to be used at different steps of your synthesis
8 AV What is the major product of the following reaction? CH CH +HB A)I B)...
8 AV What is the major product of the following reaction? CH CH +HB A)I B) I OH CH C) II D) IV E) V CH L IV CH CH Br CH II П. CH V. CHy CHBr CH II. CHBe 9. Which of the following is the most stable radical? SHOH AT CHCH CHCH III CHCH 10. Which of thellowing is the Initiation step for the monobromination of cyclohexane? B) II C) D) IV E)V 1. How many distinct...
Synthesis is a major area of organic chemistry which often requires multiple material to a target compound. A systemati...
Synthesis is a major area of organic chemistry which often requires multiple material to a target compound. A systematic way to propose a synthesis e chemistry which often requires multiple steps to convert one organic systematic way to propose a synthesis is to work backwards from the target compound to a readily available starting material. This 'retrosynthesis app arrow wie starting material. This 'retrosynthesis' approach is indicated by the within a synthesis proposal. (See Wade textbook, pg 410ff, Problem Solving...
(a) Draw all possible monobromination products for the following reaction. (b) Circle the major product Provide...
(a) Draw all possible monobromination products for the following reaction. (b) Circle the major product Provide the line angle drawings (skeletal) of the following molecules. (a) 1, 1-dichloro-3-methyl-6-hepten-2-ol (b) 4-chloro-2-ethyleyclohexanethiol
45. Provide the structure of the major organic product of the reaction be 1. BH, THE...
45. Provide the structure of the major organic product of the reaction be 1. BH, THE 2. H2O, HO HO 16. Which of the following alkenes will yield am temperature? mg alkenes will yield a meso dihalide when reacted with Br2/CCl4 at room E both Band D 17. Draw the major organic products) generated in the reaction below. Pay particular attention to regio- and stereochemical detail. CC CHCOH H₃CH₂C CH₂CH3 18. Which of the following steps would successfully complete the...
11. Draw the structure of the major organic product of the reaction sequence below. (4 marks)...
11. Draw the structure of the major organic product of the reaction sequence below. (4 marks) Show all mechanistic steps and intermediates. ОН Y i) SOCI, ii) CH, AICI: iii) Zn(Hg). HCI, heat
1.A What is the major organic product obtained from the following reaction? Circle your selection. Provide...
1.A What is the major organic product obtained from the
following reaction? Circle your selection. Provide a mechanism to
support your selection.
1.B
What is the main characteristic of a radical chain initiation
step? What is the main characteristic of a radical chain
propagation step?C.What is the main characteristic of a radical
chain termination step? Write an example for a radical chain
initiation step,a radical chain propagation step, and a radical
chain termination step?Draw out the three mechanisms for each...
5. Devise a multi-step synthesis that will provide the product shown from the given starting material....
5. Devise a multi-step synthesis that will provide the product shown from the given starting material. (Challenging!) 6 Multiple Steps 3. When diastereomers I and I undergo an E2 elimination on treatment with sodium ethoxide in ethanol, one of the isomers react 500 times faster than the other one. Also, one isomer gives only A as a product and the other isomer gives a mixture of A and B as products. Determine the products of each isomer and explain your...
Provide the missing species as eitherreagents/reaction conditions structure of reactant or major product include any appropriate...
Provide the missing species as eitherreagents/reaction
conditions structure of reactant or major product include any
appropriate stereochemistry.provide intermediate products in multi
step processes.
2x . CHCI, кон cix-3-hexene terecyclopentane - methylenecyclopentane v. 2x 1) Cl, CH C12 2) 2 KOH, EtOH, heat
II. Reactions: Predict the major organic product(s) or write the appropriate reagents/starting materials for the following...
II. Reactions: Predict the major organic product(s) or write the appropriate reagents/starting materials for the following reactions. Indicate stereochemistry and regiochemistry when appropriate. Indicate reactions that are expected to result in a racemic mixture of products DBr 1. Н.О, CHCI он HSO, heat кон 1) вн, THF 3. 2) H202. HO 1) Hg(OAc)2, CH,OH 2) NaBH, OH 5. Br2 SH 6. HIO4 OH THF, H2O "он III. Synthesis: Starting from the alkenyl bromide below, devise a synthesis that produces the...
9) (marks = 3) Provide a reasonable multistep synthesis of the following molecule from the indicated starting material, using any reagents necessary. Please include both a retrosynthesis and a forward synthesis (that includes the product and reagents of each individual step in your synthesis). Meo. = Me Me as a racemic mixture These reagents are your only sources of carbon and both are to be used at different steps of your synthesis
8 AV What is the major product of the following reaction? CH CH +HB A)I B) I OH CH C) II D) IV E) V CH L IV CH CH Br CH II П. CH V. CHy CHBr CH II. CHBe 9. Which of the following is the most stable radical? SHOH AT CHCH CHCH III CHCH 10. Which of thellowing is the Initiation step for the monobromination of cyclohexane? B) II C) D) IV E)V 1. How many distinct...
Synthesis is a major area of organic chemistry which often requires multiple material to a target compound. A systematic way to propose a synthesis e chemistry which often requires multiple steps to convert one organic systematic way to propose a synthesis is to work backwards from the target compound to a readily available starting material. This 'retrosynthesis app arrow wie starting material. This 'retrosynthesis' approach is indicated by the within a synthesis proposal. (See Wade textbook, pg 410ff, Problem Solving...
(a) Draw all possible monobromination products for the following reaction. (b) Circle the major product Provide the line angle drawings (skeletal) of the following molecules. (a) 1, 1-dichloro-3-methyl-6-hepten-2-ol (b) 4-chloro-2-ethyleyclohexanethiol
45. Provide the structure of the major organic product of the reaction be 1. BH, THE 2. H2O, HO HO 16. Which of the following alkenes will yield am temperature? mg alkenes will yield a meso dihalide when reacted with Br2/CCl4 at room E both Band D 17. Draw the major organic products) generated in the reaction below. Pay particular attention to regio- and stereochemical detail. CC CHCOH H₃CH₂C CH₂CH3 18. Which of the following steps would successfully complete the...
11. Draw the structure of the major organic product of the reaction sequence below. (4 marks) Show all mechanistic steps and intermediates. ОН Y i) SOCI, ii) CH, AICI: iii) Zn(Hg). HCI, heat
1.A What is the major organic product obtained from the
following reaction? Circle your selection. Provide a mechanism to
support your selection.
1.B
What is the main characteristic of a radical chain initiation
step? What is the main characteristic of a radical chain
propagation step?C.What is the main characteristic of a radical
chain termination step? Write an example for a radical chain
initiation step,a radical chain propagation step, and a radical
chain termination step?Draw out the three mechanisms for each...
5. Devise a multi-step synthesis that will provide the product shown from the given starting material. (Challenging!) 6 Multiple Steps 3. When diastereomers I and I undergo an E2 elimination on treatment with sodium ethoxide in ethanol, one of the isomers react 500 times faster than the other one. Also, one isomer gives only A as a product and the other isomer gives a mixture of A and B as products. Determine the products of each isomer and explain your...
Provide the missing species as eitherreagents/reaction
conditions structure of reactant or major product include any
appropriate stereochemistry.provide intermediate products in multi
step processes.
2x . CHCI, кон cix-3-hexene terecyclopentane - methylenecyclopentane v. 2x 1) Cl, CH C12 2) 2 KOH, EtOH, heat
II. Reactions: Predict the major organic product(s) or write the appropriate reagents/starting materials for the following reactions. Indicate stereochemistry and regiochemistry when appropriate. Indicate reactions that are expected to result in a racemic mixture of products DBr 1. Н.О, CHCI он HSO, heat кон 1) вн, THF 3. 2) H202. HO 1) Hg(OAc)2, CH,OH 2) NaBH, OH 5. Br2 SH 6. HIO4 OH THF, H2O "он III. Synthesis: Starting from the alkenyl bromide below, devise a synthesis that produces the...
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