Two-step synthesis: formation of methyl 3-nitrobenzoate Why is it necessary to acidify the reaction mixture in...
Two-step synthesis: formation of methyl 3-nitrobenzoate
Why is it necessary to acidify the reaction mixture in the work up of step one?
A) the sodium carboxylate is formed at the end of the reaction
B) acid purifies the product
C) acid makes the product liquid
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Two-step synthesis: formation of methyl 3-nitrobenzoate
Why is it necessary to acidify the reaction mixture in...
Two-step Synthesis: formation of methyl 3-nitrobenzoate What happens to the methyl group of 3-nitroacetophenone in the...
Two-step Synthesis: formation of methyl 3-nitrobenzoate What happens to the methyl group of 3-nitroacetophenone in the haloform reaction? A) it comes off as chloroform B) nothing C) it comes off as dichloromethane
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V. Explains why it is important to control the temperature in the synthesis of 3-nitrobenzoate. If a secondary reaction happens, draw the structure of the product or products possible. VI. Write the equations involved in the mechanism of the main reaction. Draw the structures and arrows to show the movement of electrons. VII. A student obtained 7 grams of 3-nitrobenzoate corresponding to an 83% yield. How many grams of methyl benzoate reaction started? VIII. Write equations for the mononitration reaction of...
1. Your reaction forms methyl m-nitrobenzoate. What kind of reaction is taking place in your round...
1. Your reaction forms methyl m-nitrobenzoate. What kind of reaction is taking place in your round bottom flask? 2. Why do you use a minimum quantity of methanol to recrystallize the product? 3. Why is the reaction mixture cooled as the sulfuric/nitric acid mixture is added? 4. What is the reason that you wash the recovered solids with several small portions of ice cold water? 5. How might placing the recrystallized product under vacuum help to remove excess solvent?
12. In a synthesis of isopropyl pyridine, the 3-methyl-2- presence of sodium ethoxide to give a...
12. In a synthesis of isopropyl pyridine, the 3-methyl-2- presence of sodium ethoxide to give a dicarbonyl compo NaOCH.CH opropyl pyridine, the 3 with ethyl formate in the 0 ethyl formate 3-methyl-2-butanone a) In the first step of the mechanism, sodiu alpha position to form an enolate. Complete the as necessary (4 points) step of the mechanism, sodium ethoxide deprotonates 3-methyl-2-buthone at the O form an enolate, Complete this reaction with curly arrows drawing in H atoms b) Why is...
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6) In the synthesis of bromopropane we used NaBr and H2S04. Why the reaction does not work with only NaBr? 7) The following is a reaction you will see in second semester organic chemistry. The molecular weight of methyl benzoate is 136.16 g/mol and the molecular weight of the product is 181.15 g/mol. COCH3 COCH3 HNO3 i H2SO4 NO2 methyl benzoate methyl 3-nitrobenzoate Assume you have excess acid and you start off with 2.4 g of methyl benzoate. What is...
In the synthesis of Methyl orange infocator, the first step is the reaction between sulfanilic acid...
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1-3? e-Laboratory Questions-Expa XP 3 Name: Nitration of Aromatic Compounds Due before lab begins. Answer in...
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e-Laboratory Questions-Expa XP 3 Name: Nitration of Aromatic Compounds Due before lab begins. Answer in space provided. 1. Which is nitrated faster? toluene or nitrobenzene? Explain. 2. Indicate the product formed on (mono) nitration of each of the following compounds: a) Cyanobenzene (benzonitrile) b) toluene c) benzoic acid 3. Why is methyl m-nitrobenzoate formed in this reaction instead of o- and p-? What product would you expect if methyl benzoate underwent dinitration? 4. Methyl-m-nitrobenzoate is an excellent (identification) derivative...
3-5?? e-Laboratory Questions-EXP 3 Nitration of Aromatic Compounds Name: tso ds Due before lab begins. Answer...
3-5??
e-Laboratory Questions-EXP 3 Nitration of Aromatic Compounds Name: tso ds Due before lab begins. Answer in space provided. 1. Which is nitrated faster? toluene or nitrobenzene? Explain. 2. Indicate the product formed on (mono) nitration of each of the following compounds: a) Cyanobenzene (benzonitrile) b) toluene c) benzoic acid. 3. Why is methyl m-nitrobenzoate formed in this reaction instead of o- and p-? What product would you expect if methyl benzoate underwent dinitration? 4. Methyl-m-nitrobenzoate is an excellent (identification)...
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...
aspirin synthesis: A) Describe why it is necessary to cool down the reaction mixture slowly after...
aspirin synthesis: A) Describe why it is necessary to cool down the reaction mixture slowly after heating for 5 minutes? What is this process and why is it happening? B.) what would happen if the cooling occurred too quickly?
1. Your reaction forms methyl m-nitrobenzoate. What kind of reaction is taking place in your round bottom flask? 2. Why do you use a minimum quantity of methanol to recrystallize the product? 3. Why is the reaction mixture cooled as the sulfuric/nitric acid mixture is added? 4. What is the reason that you wash the recovered solids with several small portions of ice cold water? 5. How might placing the recrystallized product under vacuum help to remove excess solvent?
12. In a synthesis of isopropyl pyridine, the 3-methyl-2- presence of sodium ethoxide to give a dicarbonyl compo NaOCH.CH opropyl pyridine, the 3 with ethyl formate in the 0 ethyl formate 3-methyl-2-butanone a) In the first step of the mechanism, sodiu alpha position to form an enolate. Complete the as necessary (4 points) step of the mechanism, sodium ethoxide deprotonates 3-methyl-2-buthone at the O form an enolate, Complete this reaction with curly arrows drawing in H atoms b) Why is...
6) In the synthesis of bromopropane we used NaBr and H2S04. Why the reaction does not work with only NaBr? 7) The following is a reaction you will see in second semester organic chemistry. The molecular weight of methyl benzoate is 136.16 g/mol and the molecular weight of the product is 181.15 g/mol. COCH3 COCH3 HNO3 i H2SO4 NO2 methyl benzoate methyl 3-nitrobenzoate Assume you have excess acid and you start off with 2.4 g of methyl benzoate. What is...
1-3?
e-Laboratory Questions-Expa XP 3 Name: Nitration of Aromatic Compounds Due before lab begins. Answer in space provided. 1. Which is nitrated faster? toluene or nitrobenzene? Explain. 2. Indicate the product formed on (mono) nitration of each of the following compounds: a) Cyanobenzene (benzonitrile) b) toluene c) benzoic acid 3. Why is methyl m-nitrobenzoate formed in this reaction instead of o- and p-? What product would you expect if methyl benzoate underwent dinitration? 4. Methyl-m-nitrobenzoate is an excellent (identification) derivative...
3-5??
e-Laboratory Questions-EXP 3 Nitration of Aromatic Compounds Name: tso ds Due before lab begins. Answer in space provided. 1. Which is nitrated faster? toluene or nitrobenzene? Explain. 2. Indicate the product formed on (mono) nitration of each of the following compounds: a) Cyanobenzene (benzonitrile) b) toluene c) benzoic acid. 3. Why is methyl m-nitrobenzoate formed in this reaction instead of o- and p-? What product would you expect if methyl benzoate underwent dinitration? 4. Methyl-m-nitrobenzoate is an excellent (identification)...
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...
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