Homework Answers
Add Answer to:
1. Consider the three molecules below to answer the following questions. Circle TRUE or FALSE at...
4. Propose an efficient synthesis of the molecule below starting with benzene. You can use any...
4. Propose an efficient synthesis of the molecule below starting with benzene. You can use any other reagents you want. NOTE: Some reactions produce ortho- and para-products. It is allowable to just take ONE of the products and use it in the next synthesis or claim it as the final product (we assume that ortho- and para-products can be separated). (3 points) CH2CH2CH Br
Arrange the following compounds in increasing order of their reactivity to electrophiles. (least reactive first) A....
Arrange the following compounds in increasing order of their reactivity to electrophiles. (least reactive first) A. CH CHO (benzaldehyde) B. C&HOCH, (anisole) C. C HBr (bromobenzene) D. CH3CH, (toluene) 1) A<C<D<B 2) A<D<C< B 3 ) C<A<B<D 4) C<A<D<B Nitration of chlorobenzene occurs: 1) faster than nitration of benzene and gives the ortho and para products. 2) faster than nitration of benzene and gives the meta product. 3) slower than nitration of benzene and gives the ortho and para products....
on T. Maitiple choiee. Select the best anaver. (0.5 points each) i. Which statement below is...
on T. Maitiple choiee. Select the best anaver. (0.5 points each) i. Which statement below is true the aromatic substitution involving the bromina of benzene? znBry acts as the Lewis acid B) Feßr, acts as the Lewis base c) Br, acts as nugaed aromatic ring D) n-electrons of benzene act as the electrophile E) FeBr, acta as the Lewis acid. a what is rue about the rate and the najor predust of nitration of the methoxybenzene? A) Proceeds more rapidly...
Question 5 (2 points) In the reaction below which of the following is true? HN Br2...
Question 5 (2 points) In the reaction below which of the following is true? HN Br2 FeBr3 O a) Br goes ortho/para to -OCH3 Ob) Br goes meta to -OCH3 O c) Br goes meta to -NHCOCH3 O d) Br goes ortho/para to -NHCOCH3 Question 6 (2 points) Predict the major product for the following reaction. HCI OOC CI CA 1 II 8.8 0 CI IV III O a) 11 Ob) 1 O c) III Od) IV
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
identify the preferred site(s) of electrophilic attack on the following compound 1-CH-04 >> ringt r ing...
identify the preferred site(s) of electrophilic attack on the following compound 1-CH-04 >> ringt r ing 2 A) ortho para positions on ring 1 B) meta position on ring 2 C) meta position on ring 1 D) orthopara positions on ring 2 2) The major products) in the nitration of benzoic acid isare) A) nitrobenzene. B) nitroben ene and para-nitrobenzoic acid. C) mixture of the and pre-nitrobenzoic acid. D -nitrobenzoic acid. 3) What is the electrophile in the Friedel-Crafts alkylation...
Question 3 1s 3 ORTHO Today we learned about adding a second group to a mono-substituted...
Question 3
1s 3 ORTHO Today we learned about adding a second group to a mono-substituted benzene ring. Any group on a benzene will affect the rate of the reaction (activated or deactivated relative to benzene) and the regioselectivity Where does the electrophile add? Ortho? Meta? Para? Some combination thereof? We found that EDGs (electron-donating groups) direct the electrophile to the ortho and para positions while EWGs (electron-withdrawing groups) direct the electrophile to the meta position. Now, it is time...
Part li-Short Answer(1 pts each) 12. Regarding the multistep synthesis below H90 DTBAF E - TMSC...
Part li-Short Answer(1 pts each) 12. Regarding the multistep synthesis below H90 DTBAF E - TMSC AMB ELOC- provide a structure for each intermediate product in the Table below А НО Toms MgC 13. Name the following compounds. OOH OH OMe NH 2 Br NO2 meta chloro Paraben- benzene Zoic acid 14. Draw structures for the following compounds meta bromophenol ortho-bromo anilene 1-bromo-2,4-dimethoxybenzene?
II. True/False. Write the word true or false by the following statements. (5) 1. A closed...
II. True/False. Write the word true or false by the following statements. (5) 1. A closed shell of re-electrons in an MO diagram of a cyclic compound indicates anti-aromaticity. 2. POCI, is a mild dehydrating agent for alcohols that follows an E2 mechanism. 3. For the re-system of benzene, there are six molecular orbitals with four different energy levels. 4. All meta directors in EAS reactions are strong electron withdrawing groups. 5. The catalyst in electrophilic aromatic substitution lowers the...
Which of the following is not true concerning the structure of benzene? 1) All C-C-C bond...
Which of the following is not true concerning the structure of benzene? 1) All C-C-C bond angles are exactly 120'. 2) The carbon-carbon bonds rapidly alternate between single and double bonds. 3) The six hydrogens are equivalent. 4) The i bonds are completely conjugated. Where would the compound shown below undergo bromination with Brz/FeBrz? 1-14 ring 1 ring 2 1) ortho/para positions on ring 1 2) meta position on ring 1 3) ortho/para position on ring 2 4) meta position...
4. Propose an efficient synthesis of the molecule below starting with benzene. You can use any other reagents you want. NOTE: Some reactions produce ortho- and para-products. It is allowable to just take ONE of the products and use it in the next synthesis or claim it as the final product (we assume that ortho- and para-products can be separated). (3 points) CH2CH2CH Br
Arrange the following compounds in increasing order of their reactivity to electrophiles. (least reactive first) A. CH CHO (benzaldehyde) B. C&HOCH, (anisole) C. C HBr (bromobenzene) D. CH3CH, (toluene) 1) A<C<D<B 2) A<D<C< B 3 ) C<A<B<D 4) C<A<D<B Nitration of chlorobenzene occurs: 1) faster than nitration of benzene and gives the ortho and para products. 2) faster than nitration of benzene and gives the meta product. 3) slower than nitration of benzene and gives the ortho and para products....
on T. Maitiple choiee. Select the best anaver. (0.5 points each) i. Which statement below is true the aromatic substitution involving the bromina of benzene? znBry acts as the Lewis acid B) Feßr, acts as the Lewis base c) Br, acts as nugaed aromatic ring D) n-electrons of benzene act as the electrophile E) FeBr, acta as the Lewis acid. a what is rue about the rate and the najor predust of nitration of the methoxybenzene? A) Proceeds more rapidly...
Question 5 (2 points) In the reaction below which of the following is true? HN Br2 FeBr3 O a) Br goes ortho/para to -OCH3 Ob) Br goes meta to -OCH3 O c) Br goes meta to -NHCOCH3 O d) Br goes ortho/para to -NHCOCH3 Question 6 (2 points) Predict the major product for the following reaction. HCI OOC CI CA 1 II 8.8 0 CI IV III O a) 11 Ob) 1 O c) III Od) IV
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
identify the preferred site(s) of electrophilic attack on the following compound 1-CH-04 >> ringt r ing 2 A) ortho para positions on ring 1 B) meta position on ring 2 C) meta position on ring 1 D) orthopara positions on ring 2 2) The major products) in the nitration of benzoic acid isare) A) nitrobenzene. B) nitroben ene and para-nitrobenzoic acid. C) mixture of the and pre-nitrobenzoic acid. D -nitrobenzoic acid. 3) What is the electrophile in the Friedel-Crafts alkylation...
Question 3
1s 3 ORTHO Today we learned about adding a second group to a mono-substituted benzene ring. Any group on a benzene will affect the rate of the reaction (activated or deactivated relative to benzene) and the regioselectivity Where does the electrophile add? Ortho? Meta? Para? Some combination thereof? We found that EDGs (electron-donating groups) direct the electrophile to the ortho and para positions while EWGs (electron-withdrawing groups) direct the electrophile to the meta position. Now, it is time...
Part li-Short Answer(1 pts each) 12. Regarding the multistep synthesis below H90 DTBAF E - TMSC AMB ELOC- provide a structure for each intermediate product in the Table below А НО Toms MgC 13. Name the following compounds. OOH OH OMe NH 2 Br NO2 meta chloro Paraben- benzene Zoic acid 14. Draw structures for the following compounds meta bromophenol ortho-bromo anilene 1-bromo-2,4-dimethoxybenzene?
II. True/False. Write the word true or false by the following statements. (5) 1. A closed shell of re-electrons in an MO diagram of a cyclic compound indicates anti-aromaticity. 2. POCI, is a mild dehydrating agent for alcohols that follows an E2 mechanism. 3. For the re-system of benzene, there are six molecular orbitals with four different energy levels. 4. All meta directors in EAS reactions are strong electron withdrawing groups. 5. The catalyst in electrophilic aromatic substitution lowers the...
Which of the following is not true concerning the structure of benzene? 1) All C-C-C bond angles are exactly 120'. 2) The carbon-carbon bonds rapidly alternate between single and double bonds. 3) The six hydrogens are equivalent. 4) The i bonds are completely conjugated. Where would the compound shown below undergo bromination with Brz/FeBrz? 1-14 ring 1 ring 2 1) ortho/para positions on ring 1 2) meta position on ring 1 3) ortho/para position on ring 2 4) meta position...
Most questions answered within 3 hours.
-
For the following reaction set-up, which type of hydrocarbon
product would form? 1,4-hexadiene + two Cl2...
asked 2 minutes ago -
Consider the following method that is intended to determine if
the double values d1 and d2...
asked 14 minutes ago -
could someone please post clear drawings of the three structures
in the equilibrium mixture of D-glucose...
asked 21 minutes ago -
Using the Properties of Order show that 5n5 +
4n4 + 6n3 + 2n2+ n +...
asked 24 minutes ago -
What is experiential learning and how is it helpful for teaching
leadership, and interpreting group dynamics?...
asked 24 minutes ago -
A security awareness policy defines the responsibilities of
managers and information owners.
True
False
asked 25 minutes ago -
which is the equilibrium expression for the reaction
3A(g)+4B(g)<---> 2C(g)+5D(g)
asked 27 minutes ago -
Create a balanced compensation plan that you feel would
encourage a restaurant manager to be more...
asked 34 minutes ago -
Re: Human Physiology
Comment on the differences between representing V02 max as an
absolute number and...
asked 36 minutes ago -
A firm with a WACC of 10% is considering the following mutually
exclusive projects:
0
1...
asked 41 minutes ago -
. A 100.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M
LiOH. Determine...
asked 1 hour ago -
A regression equation that describes the relationship between
the amount of the bill ($) at a...
asked 2 hours ago