Homework Answers
2 and 5 position are same as the whole structure is resonance stabilized and in 1HNMR hydrogen at 2 and 5 position shows that they are same i.e. chemically equivalent
I understand that OH is a EDG so I expect a para/ ortho position but how...
I
understand that OH is a EDG so I expect a para/ ortho position but
how doni determine the major product and which sode of the ring it
will be on
Which of the following is the major product of the nitration reaction of compound 1 below? ÇO-OH HNO3 /H2SO4 ????? CO-OH СО-он со-он CO-OH NO2 ON CO-OH CO-OH ON CO-OH II (b) III (c) IV (e) III & IV (d) II & III If thiophene below reacts like benzene,...
There are 3 pictures, 18 exercises in total. Topics are Benzenes and their reactions No -I...
There are 3 pictures, 18 exercises in total. Topics are Benzenes
and their reactions
No -I ab 0 CH3 Br nooit 1. Aromatic molecules contain Tt electrons. a. 4n b. 4n+2 c. An odd number d. 4n+1 c. Zero Condition needed for benzene halogenation to occur a. NaC1, 1120 b. C12, H20 c. C12, AICI3 d. NaCl, CH3OH e. C12, CC14 3. In an electrophilic aromatic substitution, the hydroxyl group orients ortho-para because a, removes electronic density from the benzene...
i know that C is a meta director, but are any of these ortho or para,...
i know that C is a meta director, but are any of these ortho
or para, or any other kind of directors? thanks!
4. Which of the following is a meta director?
20. Pleas show both ortho and para products (if applicable) a. What type of reaction is...
20. Pleas show both ortho and para products (if applicable)
a. What type of reaction is this? Acylation or alkylation?
b. What type of reaction is this? nitration or halogenation?
c. What type of reaction is this? nitration or
halogenation?
3 20. (EAS - Please sh Please show both ortho and para products,if applicable) What type of reaction is this? nitration or halogenation. CH,CI Cl2/FeCl3 HNO3/H2SO4 AICI What type of reaction is this? acylation or alkylation. What type of reaction...
Label the following as activating (A) or deactivating (D), and then also as ortho/para directors (OP)...
Label the following as activating (A) or deactivating (D), and then also as ortho/para directors (OP) or meta directors (M). Write the answer below each group. N "Here with other ty A/D? = = = = OP/M? = f) Using resonance structures, explain why a nitro group is "meta-directing" (i.e. does the nitro group actually affect the meta positions?) g) As mentioned in class, the halogens are a bit anomalous as substituents on the aromatic ring: they are deactivating groups,...
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...
If a benzene ring has one methyl group as a substituent, will the next substituent add...
If a benzene ring has one methyl group as a substituent, will the next substituent add to the benzene ring in the ortho, meta, or para position? Select one: a. para or meta b. para only c. meta only d. ortho only e. ortho or meta f. Ortho or para
If a benzene ring has one -CF3 group as a substituent, will the next substituent add...
If a benzene ring has one -CF3 group as a substituent, will the next substituent add to the benzene ring in the ortho, meta, or para position? Select one: a. meta b. para only c. ortho or para d. ortho only e. cannot determine
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...
I
understand that OH is a EDG so I expect a para/ ortho position but
how doni determine the major product and which sode of the ring it
will be on
Which of the following is the major product of the nitration reaction of compound 1 below? ÇO-OH HNO3 /H2SO4 ????? CO-OH СО-он со-он CO-OH NO2 ON CO-OH CO-OH ON CO-OH II (b) III (c) IV (e) III & IV (d) II & III If thiophene below reacts like benzene,...
There are 3 pictures, 18 exercises in total. Topics are Benzenes
and their reactions
No -I ab 0 CH3 Br nooit 1. Aromatic molecules contain Tt electrons. a. 4n b. 4n+2 c. An odd number d. 4n+1 c. Zero Condition needed for benzene halogenation to occur a. NaC1, 1120 b. C12, H20 c. C12, AICI3 d. NaCl, CH3OH e. C12, CC14 3. In an electrophilic aromatic substitution, the hydroxyl group orients ortho-para because a, removes electronic density from the benzene...
i know that C is a meta director, but are any of these ortho
or para, or any other kind of directors? thanks!
4. Which of the following is a meta director?
20. Pleas show both ortho and para products (if applicable)
a. What type of reaction is this? Acylation or alkylation?
b. What type of reaction is this? nitration or halogenation?
c. What type of reaction is this? nitration or
halogenation?
3 20. (EAS - Please sh Please show both ortho and para products,if applicable) What type of reaction is this? nitration or halogenation. CH,CI Cl2/FeCl3 HNO3/H2SO4 AICI What type of reaction is this? acylation or alkylation. What type of reaction...
Label the following as activating (A) or deactivating (D), and then also as ortho/para directors (OP) or meta directors (M). Write the answer below each group. N "Here with other ty A/D? = = = = OP/M? = f) Using resonance structures, explain why a nitro group is "meta-directing" (i.e. does the nitro group actually affect the meta positions?) g) As mentioned in class, the halogens are a bit anomalous as substituents on the aromatic ring: they are deactivating groups,...
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...
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...
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