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4 (16 points - 8 points each Complete the following synthesis problems using the best synthetic...
Choose two of the following synthesis problems to complete. Propose a synthetic route by clearly indicating...
Choose two of the following synthesis problems to complete. Propose a synthetic route by clearly indicating the reagents needed and the intermediate products formed. If you do not indicate which problem to grade, the first two will be graded by default. No mechanism is needed. Please grade this problem (A). Br
5. (21 points - 7 points each) Mechanism Give an arrow pushing mechanism for the following...
5. (21 points - 7 points each) Mechanism Give an arrow pushing mechanism for the following transformations, be sure to show all the steps. Choose 3 that you would like graded and clearly mark them. If not clearly marked, I will only grade the first 3 problems B. Draw the mechanism and indicate initiation and propagation steps for the reaction below: NBS w peroxides heat peroxides
9. (7) Write a complete multi-step synthetic route for the following transformations, using only the given...
9. (7) Write a complete multi-step synthetic route for the following transformations, using only the given starting material(s) as the sole source(s) of carbon. You do not have to show the synthesis of solvents or reagents if they are not incorporated into the final product. Clearly (in) Show all intermediate steps and reagents, but do not show any mechanisms or transition states. (24 points): a) Y. I-oyar onbino - we
For each synthesis, provide all major intermediate products for each step. Please complete the problems in...
For each synthesis, provide all major intermediate products for
each step. Please complete the problems in order and make sure they
are clearly labeled with the problem number.
лу + co, + но ОН
1. (7 points) Draw the major, organic product generated for each of the reactions regiochemistry and...
1. (7 points) Draw the major, organic product generated for each of the reactions regiochemistry and stereochemistry. Be sure to indicate if more than one enantiomer is formed. below. Pay particular attention to the CI dilute H2SO4 KCN C2, H20 (dark) 1. BH3 THF 2. H2O2, KOH 1. NaH 2. allyl chloride (e) Draw the stereoisomer of 2,3-diphenylbut-2-ene that yields meso-2,3-dibromo-2,3-diphenylbutane on reaction with Br2 in the cold, darkness. 2.(2 points) Complete the following synthesis by filing in the missing...
1) Choose one molecule from the set and create an 8-step synthesis scheme using the chosen...
1) Choose one molecule from the set and create an 8-step synthesis scheme using the chosen molecule as your starting material. You need to write the complete set of reagents and draw the product expected from each step. Reagents typically used together are considered one step, eg. 1) LAH 2) H.O should be considered as one step Your 8 steps must include at least one reaction from each of the chapters, aldehydes and ketones, carboxylic acid derivatives, alcohols. You can...
nstructions: Complete each of the following problems to the best of your ability. Each question or...
nstructions: Complete each of the following problems to the best of your ability. Each question or part of a question) is worth 2 points. The points are all or nothing (no partial credit). 1) Free radicals are molecules that contain an unpaired electron. Free radicals are important in many environmentally significant reactions. For example, photochemical smog - smog that results from the action of sunlight on air pollutants - forms in part by these two steps: NO2 hy NO+0 O+O2O...
Short Ansver (75 points each): Answer TWO of the following prompts using complete sentences. Be sure...
Short Ansver (75 points each): Answer TWO of the following prompts using complete sentences. Be sure to circle the prompts that you would like graded. Otherwise, the first two answers given will be graded. I What prinmarily distinguishes science from pseudoscience? Give an example of pseudoscience and use your distinction to explain why you don't consider your example a science. II) Can an object have a non-zero velocity with no acceleration? Can an object have no velocity with a non-zero...
4. (30 points) The printer at the CAEN lab works as follows. If it is working...
4. (30 points) The printer at the CAEN lab works as follows. If it is working at the beginning of a day, it continues to work until the next day with probability 0.65, and it fails with probability 0.35 (assume that it works for the entire day and only has a probability of failing when it is turned off at the end of the day). The repairman is very efficient: if the printer has failed at the end of the...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic acid (aniline derivative) and 8-ani...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic
acid (aniline derivative) and 8-anilino-1-naphthalenesulfonic acid
(coupling agent). Write the mechanism.
SYNTHESIS OF AZO DYES INTRODUCTION Humans' love of color dates back almost to prehistoric times, yet it is not actually until the modern era that the full range of the rainbow has been accessible to the majority of people irn their clothes and other textiles. Ancient or medieval times have often been described as being quite splendid with their "tyrian purple"...
Choose two of the following synthesis problems to complete. Propose a synthetic route by clearly indicating the reagents needed and the intermediate products formed. If you do not indicate which problem to grade, the first two will be graded by default. No mechanism is needed. Please grade this problem (A). Br
5. (21 points - 7 points each) Mechanism Give an arrow pushing mechanism for the following transformations, be sure to show all the steps. Choose 3 that you would like graded and clearly mark them. If not clearly marked, I will only grade the first 3 problems B. Draw the mechanism and indicate initiation and propagation steps for the reaction below: NBS w peroxides heat peroxides
9. (7) Write a complete multi-step synthetic route for the following transformations, using only the given starting material(s) as the sole source(s) of carbon. You do not have to show the synthesis of solvents or reagents if they are not incorporated into the final product. Clearly (in) Show all intermediate steps and reagents, but do not show any mechanisms or transition states. (24 points): a) Y. I-oyar onbino - we
For each synthesis, provide all major intermediate products for
each step. Please complete the problems in order and make sure they
are clearly labeled with the problem number.
лу + co, + но ОН
1. (7 points) Draw the major, organic product generated for each of the reactions regiochemistry and stereochemistry. Be sure to indicate if more than one enantiomer is formed. below. Pay particular attention to the CI dilute H2SO4 KCN C2, H20 (dark) 1. BH3 THF 2. H2O2, KOH 1. NaH 2. allyl chloride (e) Draw the stereoisomer of 2,3-diphenylbut-2-ene that yields meso-2,3-dibromo-2,3-diphenylbutane on reaction with Br2 in the cold, darkness. 2.(2 points) Complete the following synthesis by filing in the missing...
1) Choose one molecule from the set and create an 8-step synthesis scheme using the chosen molecule as your starting material. You need to write the complete set of reagents and draw the product expected from each step. Reagents typically used together are considered one step, eg. 1) LAH 2) H.O should be considered as one step Your 8 steps must include at least one reaction from each of the chapters, aldehydes and ketones, carboxylic acid derivatives, alcohols. You can...
nstructions: Complete each of the following problems to the best of your ability. Each question or part of a question) is worth 2 points. The points are all or nothing (no partial credit). 1) Free radicals are molecules that contain an unpaired electron. Free radicals are important in many environmentally significant reactions. For example, photochemical smog - smog that results from the action of sunlight on air pollutants - forms in part by these two steps: NO2 hy NO+0 O+O2O...
Short Ansver (75 points each): Answer TWO of the following prompts using complete sentences. Be sure to circle the prompts that you would like graded. Otherwise, the first two answers given will be graded. I What prinmarily distinguishes science from pseudoscience? Give an example of pseudoscience and use your distinction to explain why you don't consider your example a science. II) Can an object have a non-zero velocity with no acceleration? Can an object have no velocity with a non-zero...
4. (30 points) The printer at the CAEN lab works as follows. If it is working at the beginning of a day, it continues to work until the next day with probability 0.65, and it fails with probability 0.35 (assume that it works for the entire day and only has a probability of failing when it is turned off at the end of the day). The repairman is very efficient: if the printer has failed at the end of the...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic
acid (aniline derivative) and 8-anilino-1-naphthalenesulfonic acid
(coupling agent). Write the mechanism.
SYNTHESIS OF AZO DYES INTRODUCTION Humans' love of color dates back almost to prehistoric times, yet it is not actually until the modern era that the full range of the rainbow has been accessible to the majority of people irn their clothes and other textiles. Ancient or medieval times have often been described as being quite splendid with their "tyrian purple"...
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