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
If a benzene ring has one -CF3 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
An NH2 substituent in an aromatic ring is: Select one: a. activating ortho-, meta- and para-directing b. deactivating and ortho- and para-directing c. deactivating and meta-directing d. activating and meta-directing e. activating and ortho- and para-directing
Predict the effect the substituent attached to the benzene ring below would have on electrophilic aromatic substitution reactions? CH, CH3 a) meta director, deactivator b) ortho/para director, activator c) meta director, activator d) ortho/para director, deactivator
When there is an electron-withdrawing group on a benzene ring (eg. compounds such as nitrobenzenebenzoic acid, acetophenone, etc, resonance structures can be drawn that indicate the positions on the benzene ring that are least nucleophilic (because they have a positive charge on the carbon at that position). Because these positions are much less nucleophilic, the substitution reaction will not occur here; instead, substitution will occur at the other position(s) on the ring. As a result, which position(s) are most nucleophilic...
5. Which of the following is not a meta-directing substituent
when presenbt on the benzene ring? Please give explanation,
too.
5. Which of the following is not a meta-directing substituent when present on the benzenering? a) -NHCOCH b) -NO2 d) -C N e).CO2H
In a phenol, which group is the substituent on the benzene ring? a. carbonyl ]b alcohol C carboxyl d amino ts 4 ?
437 Predict whether the following substituents on the benzene ring are likely to be ha para directing or meta directing and whether they are like to be ring activating or ring deactivating deact vabang a) - NH(CH 4.38 For each of the monosabstituted benenes shown below, (1) Indicate whether the substituent is ortho, para directing or meta directing (2) Draw the structure of the main monosubstitution product for each of the reactions indicated orth. OCH3 + HCl -OCHE (fecutulys ortho...
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...
When installing a substituent on a benzene ring that already has
2 substituents on it, my textbook says that the stronger activator
will determine where the new substituent is installed. What about
in the case of the a benzene ring that has 2 deactivators? What is
the rule in that case? Does the stronger deactivator determine
where the new substituent is installed? How does that work?
Here is an example of what im talking about:
React the following ring with...
10. (12 points) Cua CHaCHa Les eb Predict whether the following substituents on the benzene ring are likely to be ortho/para directing or meta directing and whether they are likely to be ring activating or ring deactivating ..n(CH3)2 CEN ОСН з -NO C-OCH 11. (6 points) Starting with benzene as the only aromatic starting material, devise a