Which of the following names are possible for an aromatic compound? Select all possible answers. A...
Which of the following names are possible for an aromatic compound? Select all possible answers.
A
1-bromo-3-ethyl-2-nitroanisole
B
meta-trimethylbenzene
C
2-hexyl-1-methylbenzene
D
4-cyano-5-fluorophenol
E
1,1-dibromobenzene
F
para-iodobenzaldehyde
G
3-cyclohexylaniline
H
ortho-dimethyltoluene
Homework Answers
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Which of the following names are possible for an aromatic
compound? Select all possible answers.
A...
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...
1) Which of the following is an intermediate in the bromination of toluene? p) Ha BrH...
1) Which of the following is an intermediate in the bromination of toluene? p) Ha BrH 2 2) Under what reaction conditions would the electrophilic chlorination of aromatic compounds usually occur? A) Cl2, AlCl3 B) C12, CCl4 C) Cl2, H20 D) NaCl, H20 E) NaCI, CH3OH 3) 3) Which of the following is the strongest activating group in electrophilic aromatic substitution reactions? A) -CO2CH3 B)-NO2 C) -OCH3 D) -CH2CH3 E) -N(CH3)2 4) _ 4) In electrophilic aromatic substitution reactions the...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E)...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...
4. Answer the following questions based on the electrophilic aromatic substitution reaction shown below. door a....
4. Answer the following questions based on the electrophilic aromatic substitution reaction shown below. door a. (2.5pts) Based on the identity of the substituent on the starting material and its interaction with the aromatic ring, is this substituent an activator or deactivator? Briefly explain your answer and support your answer with structures b. (5.5pts) Draw all of the resonance contributors of the o-complexes that lead to each of the three possible products. c. (0.5p) Based on the structures drawn in...
Identify each compound in the following questions and make assignments in the 1H NMR a) First...
Identify each compound in the following questions and make
assignments in the 1H NMR
a) First spectra: Compound 1, 1H NMR given, and has a strong
absorbance in the IR at 1715 cm-1
b) Second spectra: Compound 2, a carboxylic acid of formula
C8H6O3Cl2 with 1H NMR given
c) Third spectra: Compound 3 with molecular formula of
C6H9ClO2, with 1H NMR given (the four signal from highest to lowest
chemical shift are quartet, quartet, double, and triplet)
d) Compound 4,...
Question 1 1 pts Which of the following are valid names for the following molecule? (choose...
Question 1 1 pts Which of the following are valid names for the following molecule? (choose all that apply) CHE 1-bromo-3-methylbenzene 3-bromotoluene meta-bromotoluene meta-bromomethylbenzene Question 2 1 pts Which of the following would distinguish benzene from cyclohexene in spectroscopy? (choose all that apply) IR-peaks around 3100 and 1600 cm-1 for benzene, which cyclohexene doesn't have HNMR-peak around 7 ppm for benzene vs 5 ppm for cyclohexene CNMR-peak around 130 ppm for benzene vs 120 ppm for cyclohexene
please help in all sections asap!!!! What is the major product of the following reaction sequence?...
please help in all sections asap!!!!
What is the major product of the following reaction sequence? 1) NBS (one equiv.), heat 2) t-BuOK The lone pairs on pyrimidine (structure below) are not delocalized because of which factor? The lone pairs are in sp orbitals. The lone pairs are in sp orbitals. The lone pairs are in orbitals at 90 degrees to the pi system. None of the above. Choose the five different acceptable IUPAC names for the following compound. meta-dimethylbenzene...
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...
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....
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals expected in both the reactant and the product. 2) Provide the carbocation intermediate that allowed the transformation to happen at that position. 3) This molecule is (ortho, meta, para) substituted (circle one). 4) Using resonance arrows show how that carbocation can be distributed (delocalized) to multiple locations on the arene ring system. 5) Predict a different structure that can form from this delocalization. FeBrg,...
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...
1) Which of the following is an intermediate in the bromination of toluene? p) Ha BrH 2 2) Under what reaction conditions would the electrophilic chlorination of aromatic compounds usually occur? A) Cl2, AlCl3 B) C12, CCl4 C) Cl2, H20 D) NaCl, H20 E) NaCI, CH3OH 3) 3) Which of the following is the strongest activating group in electrophilic aromatic substitution reactions? A) -CO2CH3 B)-NO2 C) -OCH3 D) -CH2CH3 E) -N(CH3)2 4) _ 4) In electrophilic aromatic substitution reactions the...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...
4. Answer the following questions based on the electrophilic aromatic substitution reaction shown below. door a. (2.5pts) Based on the identity of the substituent on the starting material and its interaction with the aromatic ring, is this substituent an activator or deactivator? Briefly explain your answer and support your answer with structures b. (5.5pts) Draw all of the resonance contributors of the o-complexes that lead to each of the three possible products. c. (0.5p) Based on the structures drawn in...
Identify each compound in the following questions and make
assignments in the 1H NMR
a) First spectra: Compound 1, 1H NMR given, and has a strong
absorbance in the IR at 1715 cm-1
b) Second spectra: Compound 2, a carboxylic acid of formula
C8H6O3Cl2 with 1H NMR given
c) Third spectra: Compound 3 with molecular formula of
C6H9ClO2, with 1H NMR given (the four signal from highest to lowest
chemical shift are quartet, quartet, double, and triplet)
d) Compound 4,...
Question 1 1 pts Which of the following are valid names for the following molecule? (choose all that apply) CHE 1-bromo-3-methylbenzene 3-bromotoluene meta-bromotoluene meta-bromomethylbenzene Question 2 1 pts Which of the following would distinguish benzene from cyclohexene in spectroscopy? (choose all that apply) IR-peaks around 3100 and 1600 cm-1 for benzene, which cyclohexene doesn't have HNMR-peak around 7 ppm for benzene vs 5 ppm for cyclohexene CNMR-peak around 130 ppm for benzene vs 120 ppm for cyclohexene
please help in all sections asap!!!!
What is the major product of the following reaction sequence? 1) NBS (one equiv.), heat 2) t-BuOK The lone pairs on pyrimidine (structure below) are not delocalized because of which factor? The lone pairs are in sp orbitals. The lone pairs are in sp orbitals. The lone pairs are in orbitals at 90 degrees to the pi system. None of the above. Choose the five different acceptable IUPAC names for the following compound. meta-dimethylbenzene...
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...
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....
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals expected in both the reactant and the product. 2) Provide the carbocation intermediate that allowed the transformation to happen at that position. 3) This molecule is (ortho, meta, para) substituted (circle one). 4) Using resonance arrows show how that carbocation can be distributed (delocalized) to multiple locations on the arene ring system. 5) Predict a different structure that can form from this delocalization. FeBrg,...
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