Draw the structure of the aryldiazonium salt AND the structure of the activated ring.
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Draw the structure of the aryldiazonium salt AND the structure
of the activated ring.
Consider the...
2. Draw the structure of the byproduct that would be formed if the reaction mixture were...
2. Draw the structure of the byproduct that would be formed if the reaction mixture were not kept in an ice bath during the azo coupling reaction. [2 pts) Methyl orange can be synthesized using an azo coupling reaction, which is an example of an electrophilic aromatic substitution (EAS). In an azo coupling, the electrophile is an aryldiazonium salt, and the nucleophile is another electron-rich aromatic compound (typically an aniline or phenol). In this experiment, sulfanilic acid will be converted...
This is a Synthesis of Azo Dyes lab EXPERIMENT 8: SUPPLEMENTARY LAB QUESTIONS 1. Would you...
This is a Synthesis of Azo Dyes lab
EXPERIMENT 8: SUPPLEMENTARY LAB QUESTIONS 1. Would you expect benzoic acid or anisole to be a more effective coupling reagent? Why? Anisole would be more effective coupling agent reagents than benzoic acid because anisole has o-cH₃ an electron donating group whereas benzoic acid have a 2-oh group attached to the benzene ring that acts as electron withdrawing group. 2. Most diazo coupling reactions do not work well in acidic solutions. Explain. 3....
This is a Synthesis of Azo Dyes lab EXPERIMENT 8: SUPPLEMENTARY LAB QUESTIONS 1. Would you...
This is a Synthesis of Azo Dyes lab
EXPERIMENT 8: SUPPLEMENTARY LAB QUESTIONS 1. Would you expect benzoic acid or anisole to be a more effective coupling reagent? Why? Anisole would be moe cffectiue canpling agent rensents thanbezei acid becase anisole has o-eHz an elect/on donating grou whelcas burzoie aci el have n ing that acts as clection withdrawins group. OM fe attached te cbenzene 2. Most diazo coupling reactions do not work well in acidic solutions. Explain. 3. What...
Draw the diene that you would use to prepare the following compound via a ring-closing metathesis...
Draw the diene that you would use to prepare the following compound via a ring-closing metathesis reaction. ? Edit Analyze the structure of the product and determine which bond(s) can be made via a Heck reaction. "S 16 za como с Identify the starting organohalide and akene. Draw organohalide. Represent it as an iodide (because iodides are more reactive than bromides or chlorides): ? Edit Draw akene: ? Edit
Would someone help me to solve these questions? Thanks in advanced Questions 1. Draw the mechanism...
Would someone help me to solve these questions? Thanks
in advanced
Questions 1. Draw the mechanism of the formation of the diazonium salt from sulfanilic acid. 2. Draw the mechanism of the reaction of N,N-dimethylaniline and the diazonium salt of sulfanilic acid to form the azo dye. 3. Why does the dimethylaniline couple with the diazonium salt at the para position of the ring? 4. What would be the result if copper (I) chloride were added to the diazonium salt...
Predicting Products: Draw the structure of the one major organic product of each reaction in the...
Predicting Products: Draw the structure of the one major organic product of each reaction in the boxes provided. Be aware that the products all have the molecular formula C6H100, but oth products are constitutional isomers of one another. Stereochemistry should be shown if applicable. HO. Nah, DMSO Br HO, Nah, DMSO Br An efficient way to prepare asymmetrical ethers was developed by a British scientist, Alexander Williamson. Show what reagents you would use to prepare the following compound via a...
Draw the structure of each compound 1. Draw the structure of each compound: (a) cis-1,2-Cyclohexanediol (b)...
Draw the structure of each compound
1. Draw the structure of each compound: (a) cis-1,2-Cyclohexanediol (b) Isobutanol (c) 2,4,6-Trinitrophenol (d) (R)-2,2-Dimethyl-3-heptanol (e) Ethylene glycol (0) (s)-2-Methyl-1-butanol 2. Acid-catalyzed hydration of 3,3-dimethyl-1-butene produces 2,3-dimethyl-2-butanol. Show a mechanism for this reaction 3. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation. Explain. 4. Using 2-propanol as your only source of carbon, show how you would prepare 2-methyl- 2-pentanol. 5. Identify...
1. Why is Para Red (as well as other dyes) colored? 2. Consider the amounts of...
1. Why is Para Red (as well as other dyes) colored? 2. Consider the amounts of reactants used in the lab to determine the limiting reagent and theoretical yield of Para Red dye. Show calculations. (If these calculations were detailed in the intro, just direct the grader to the page where they can be found). 3. Why do you have to keep the temperature < 50C when preparing the diazonium salt intermediate? 4. What process is used to dye blue...
can someone please answer number one? im so lost DYES AND DYEING CHAPTER 1. Calculate the...
can someone please answer number one? im so lost
DYES AND DYEING CHAPTER 1. Calculate the amounts of salicylic acid, 1-naphthol, 2-naphthol, 8-anilino-1-naph- thalenesulfonic acid ammonium salt, or N,N-dimethylaniline needed for Part 1B of this experiment (use molecules as assigned by your TA). 190mg 3-aminobenzene 2.5mL Sulfonic acid 2.5% sodium carbonate solution 81mg Sodium nitrate 2. What is the purpose of the sodium carbonate in Part 1A? Why do we add glacial acetic acid in Part 13 when we react...
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"...
2. Draw the structure of the byproduct that would be formed if the reaction mixture were not kept in an ice bath during the azo coupling reaction. [2 pts) Methyl orange can be synthesized using an azo coupling reaction, which is an example of an electrophilic aromatic substitution (EAS). In an azo coupling, the electrophile is an aryldiazonium salt, and the nucleophile is another electron-rich aromatic compound (typically an aniline or phenol). In this experiment, sulfanilic acid will be converted...
This is a Synthesis of Azo Dyes lab
EXPERIMENT 8: SUPPLEMENTARY LAB QUESTIONS 1. Would you expect benzoic acid or anisole to be a more effective coupling reagent? Why? Anisole would be more effective coupling agent reagents than benzoic acid because anisole has o-cH₃ an electron donating group whereas benzoic acid have a 2-oh group attached to the benzene ring that acts as electron withdrawing group. 2. Most diazo coupling reactions do not work well in acidic solutions. Explain. 3....
This is a Synthesis of Azo Dyes lab
EXPERIMENT 8: SUPPLEMENTARY LAB QUESTIONS 1. Would you expect benzoic acid or anisole to be a more effective coupling reagent? Why? Anisole would be moe cffectiue canpling agent rensents thanbezei acid becase anisole has o-eHz an elect/on donating grou whelcas burzoie aci el have n ing that acts as clection withdrawins group. OM fe attached te cbenzene 2. Most diazo coupling reactions do not work well in acidic solutions. Explain. 3. What...
Draw the diene that you would use to prepare the following compound via a ring-closing metathesis reaction. ? Edit Analyze the structure of the product and determine which bond(s) can be made via a Heck reaction. "S 16 za como с Identify the starting organohalide and akene. Draw organohalide. Represent it as an iodide (because iodides are more reactive than bromides or chlorides): ? Edit Draw akene: ? Edit
Would someone help me to solve these questions? Thanks
in advanced
Questions 1. Draw the mechanism of the formation of the diazonium salt from sulfanilic acid. 2. Draw the mechanism of the reaction of N,N-dimethylaniline and the diazonium salt of sulfanilic acid to form the azo dye. 3. Why does the dimethylaniline couple with the diazonium salt at the para position of the ring? 4. What would be the result if copper (I) chloride were added to the diazonium salt...
Predicting Products: Draw the structure of the one major organic product of each reaction in the boxes provided. Be aware that the products all have the molecular formula C6H100, but oth products are constitutional isomers of one another. Stereochemistry should be shown if applicable. HO. Nah, DMSO Br HO, Nah, DMSO Br An efficient way to prepare asymmetrical ethers was developed by a British scientist, Alexander Williamson. Show what reagents you would use to prepare the following compound via a...
Draw the structure of each compound
1. Draw the structure of each compound: (a) cis-1,2-Cyclohexanediol (b) Isobutanol (c) 2,4,6-Trinitrophenol (d) (R)-2,2-Dimethyl-3-heptanol (e) Ethylene glycol (0) (s)-2-Methyl-1-butanol 2. Acid-catalyzed hydration of 3,3-dimethyl-1-butene produces 2,3-dimethyl-2-butanol. Show a mechanism for this reaction 3. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation. Explain. 4. Using 2-propanol as your only source of carbon, show how you would prepare 2-methyl- 2-pentanol. 5. Identify...
can someone please answer number one? im so lost
DYES AND DYEING CHAPTER 1. Calculate the amounts of salicylic acid, 1-naphthol, 2-naphthol, 8-anilino-1-naph- thalenesulfonic acid ammonium salt, or N,N-dimethylaniline needed for Part 1B of this experiment (use molecules as assigned by your TA). 190mg 3-aminobenzene 2.5mL Sulfonic acid 2.5% sodium carbonate solution 81mg Sodium nitrate 2. What is the purpose of the sodium carbonate in Part 1A? Why do we add glacial acetic acid in Part 13 when we react...
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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