For a Friedel-Crafts alkylation reaction between 1,4-dimethoxybenzene with 3-methyl-2-butanol and sulfuric acid what product was formed...
For a Friedel-Crafts alkylation reaction between 1,4-dimethoxybenzene with 3-methyl-2-butanol and sulfuric acid what product was formed in this reaction? Use a discussion of the reaction mechanism, IR, and NMR data to justify your conclusion. A figure should be included to aid in the discussion of the reaction mechanism.
Homework Answers
In the IR spectrum for C=C bond stretching one band will come at around 1680-1575 cm-1.
In the IR spectrum for C-H bond stretching band will come at around 3100-3000 cm-1 for phenyl group.
In the IR spectrum for C-H bond stretching band will dispaly at around 2985-2865 cm-1 for CH and CH3 group.
In the IR spectrum for C-O bond stretching one band will come at around 1445-1300 cm-1.
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For a Friedel-Crafts alkylation reaction between
1,4-dimethoxybenzene with 3-methyl-2-butanol and sulfuric acid what
product was formed...
Provide a mechanism for the entire reaction of 1,4-dimethoxybenzene + 3-methyl-2-butanol + Sulfuric Acid --> 1,4-dimethoxy-2,5-di-tert-pentylbenzene.
Provide a mechanism for the entire reaction of 1,4-dimethoxybenzene + 3-methyl-2-butanol + Sulfuric Acid --> 1,4-dimethoxy-2,5-di-tert-pentylbenzene.
These question are for the Friedel Crafts Alkylation of 1,4-Dimethoxybenzene organic chem lab 1. Why is...
These question are for the Friedel Crafts Alkylation of
1,4-Dimethoxybenzene organic chem lab
1. Why is 1,4-di-t-butyl-2,5-dimethoxybenzene the preferred product of this reaction? Why is neither 1,2-di-t-butyl-3,6-dimethoxybenzene nor 1,3-di-t-butyl-3,6-dimethoxybenzene formed as side products? OCH3 OCH3 OCH3 OCH3 1,2-di-t-butyl-3,6-dimethoxybenzene 1,3-di-t-butyl-3,6-dimethoxybenzene 2. 3. 4. Why was the product washed with water? Why was the product washed with methanol? We used t-butyl alcohol to generate t-butyl cation. Suggest two other compounds that could be used to generate the t-butyl cation.
QUESTIONS 1. What is the purpose of the sulfuric acid (yes, it's a catalyst, but why...
QUESTIONS 1. What is the purpose of the sulfuric acid (yes, it's a catalyst, but why is it a catalyst? What is it doing that makes the reaction possible? Would the reaction just go slower without it, or would the reaction not go at all? Why?) 2. If isobutyl alcohol (2 methyl propanol) is used instead of tert butyl alcohol, a mixture of products is obtained. One the products is the same as the product obtained with the tert butyl...
The following questions are from an experiment titled Friedel-Crafts Alkylation for Organic Chemistry II Lab. There...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
I just need the potential side reaction that will occur. The reaction creating the products (2-methyl-1-butene...
I just need the potential side reaction that will occur. The
reaction creating the products (2-methyl-1-butene and
2-methyl-2-butene) is between 2-methyl-2-butanol and sulfuric acid.
I already have the arrow pushing mechanism I just do not know what
the potential, undesired side product is. Please show the
mechanism.
Describe and provide a detailed mechanism (use arrow pushing) for the preparation of 2-methyl- 1-butene and 2-methyl-2-butene. 2 pts Provide a potential undesired (side) reaction that can occur during the preparation of the...
When 3-bromo-2,2-dimethylbutane is treated with potassium tert-butoxide, a single product, A, having the formula C6H12 is formed. When 3,3-dimethyl-2-butanol is treated with sulfuric acid, the major product, B, has the formula C6H12. Given the following N
When 3-bromo-2,2-dimethylbutane is treated with potassium tert-butoxide, a single product, A, having the formula C6H12 is formed. When 3,3-dimethyl-2-butanol is treated with sulfuric acid, the major product, B, has the formula C6H12. Given the following NMR data, what are the structures of A and B?Write reactions for the formation of A and B and draw a splitting diagram for the protons at 4.82, 4.93, and 5.83 ppm in compound A1H NMR of A: 1.01 (s, 9H), 4.82 (dd, 1H, J = 10, 1.7 Hz), 4.93 (dd,...
2. Draw the structure of the major organic product that is formed from the following reaction....
2. Draw the structure of the major organic product that is formed from the following reaction. Draw this structure in the box at the bottom of the next page. Then use letters to label all the sets of chemically equivalent carbons in this structure. The broadband proton-decoupled 13C NMR spectrum of the product is shown below. DEPT 90 and DEPT 135 data are included in the table on the following page. Use this spectroscopic data to make clear assignments of...
What is the reaction mechanism of 2-Methyl-2-Butanol in H2SO4+Heat. I know the 2 products are 2-methyl-1-butene...
What is the reaction mechanism of 2-Methyl-2-Butanol in
H2SO4+Heat. I know the 2 products are 2-methyl-1-butene and
2-methyl-2-butene which product is the major product when its an
acid-catalyzed dehydration reaction that was driven to completion
by distillation? Also on my gas chromatography graph trace which
product is which? Is the bigger peak my major product? I know I am
looking at the peaks at 1.509 and 1.612. Thank you.
: 10/24/2019 11:13:31 AM Injection Date Sample Name Acq. Operator Acq....
1.The main product of the reaction between p-cresol and Br2 / FeBr3 is: 3-Bromo-4-methyl phenol 2-Bromo-4-methyl...
1.The main product of the reaction between p-cresol and Br2 / FeBr3 is: 3-Bromo-4-methyl phenol 2-Bromo-4-methyl phenol 2-methyl-4-bromine phenol 3-methyl-4-bromine phenol 2.Which of the following compounds is the least reactive in the nucleophilic substitution with NaOH? 2,4-dinitrochlorobenzene m-nitrochlorobenzene o-nitrochlorobenzene 3,5-dinitrochlorobenzene 3.What is the mechanism (s) for the reaction of 4-bromo-1-nitrobenzene with sodium hydroxide to form 4-nitrophenol? bimolecular nucleophilic substitution (Sn2) aromatic nucleophilic substitution by addition-elimination aromatic nucleophilic substitution by elimination-addition aromatic electrophilic substitution 4.which of the following is the correct...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
These question are for the Friedel Crafts Alkylation of
1,4-Dimethoxybenzene organic chem lab
1. Why is 1,4-di-t-butyl-2,5-dimethoxybenzene the preferred product of this reaction? Why is neither 1,2-di-t-butyl-3,6-dimethoxybenzene nor 1,3-di-t-butyl-3,6-dimethoxybenzene formed as side products? OCH3 OCH3 OCH3 OCH3 1,2-di-t-butyl-3,6-dimethoxybenzene 1,3-di-t-butyl-3,6-dimethoxybenzene 2. 3. 4. Why was the product washed with water? Why was the product washed with methanol? We used t-butyl alcohol to generate t-butyl cation. Suggest two other compounds that could be used to generate the t-butyl cation.
QUESTIONS 1. What is the purpose of the sulfuric acid (yes, it's a catalyst, but why is it a catalyst? What is it doing that makes the reaction possible? Would the reaction just go slower without it, or would the reaction not go at all? Why?) 2. If isobutyl alcohol (2 methyl propanol) is used instead of tert butyl alcohol, a mixture of products is obtained. One the products is the same as the product obtained with the tert butyl...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
I just need the potential side reaction that will occur. The
reaction creating the products (2-methyl-1-butene and
2-methyl-2-butene) is between 2-methyl-2-butanol and sulfuric acid.
I already have the arrow pushing mechanism I just do not know what
the potential, undesired side product is. Please show the
mechanism.
Describe and provide a detailed mechanism (use arrow pushing) for the preparation of 2-methyl- 1-butene and 2-methyl-2-butene. 2 pts Provide a potential undesired (side) reaction that can occur during the preparation of the...
2. Draw the structure of the major organic product that is formed from the following reaction. Draw this structure in the box at the bottom of the next page. Then use letters to label all the sets of chemically equivalent carbons in this structure. The broadband proton-decoupled 13C NMR spectrum of the product is shown below. DEPT 90 and DEPT 135 data are included in the table on the following page. Use this spectroscopic data to make clear assignments of...
What is the reaction mechanism of 2-Methyl-2-Butanol in
H2SO4+Heat. I know the 2 products are 2-methyl-1-butene and
2-methyl-2-butene which product is the major product when its an
acid-catalyzed dehydration reaction that was driven to completion
by distillation? Also on my gas chromatography graph trace which
product is which? Is the bigger peak my major product? I know I am
looking at the peaks at 1.509 and 1.612. Thank you.
: 10/24/2019 11:13:31 AM Injection Date Sample Name Acq. Operator Acq....
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
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