
Interpretation:
The principal organic product for each reaction is to be identified.
Concept introduction:
All activating substituents in the ring are ortho and para directing.
Halogen substituents are ortho and para-directing but slightly deactivating.
Meta directing substituents are strongly deactivating.
When a benzene ring contains two or more substituents, the cumulative effects of its substituent predict its reactivity and the site of further substitution.
The regioselectivity of electrophilic
The substitution usually occurs at the less hindered site, when two positions are comparably activated.
Often the directing effects of substituents strengthen each other.
Electrophilic aromatic substation can take place at both the ortho and para positions, if an activating and o-p directing substituent is attached to a benzene ring.
If a deactivating and meta directing substituent is attached to a benzene ring, electrophilic aromatic substitution can take place at both meta positions.
Electrophilic aromatic substation can take place at both meta positions, if a deactivating and meta directing substituent is attached to a benzene ring.
For a biphenyl compound, two benzene rings are connected by a single bond. In substituted biphenyls, each ring is numbered separately using primed and nonprimed numbers. The numbering begins at the carbon containing single bond. If only one substituent is present in the biphenyl ring, then its position is designated as being ortho, meta, or para to the other ring.

Want to see the full answer?
Check out a sample textbook solution
Chapter 13 Solutions
ORGANIC CHEMISTRY-PACKAGE >CUSTOM<
- Don't used hand raiting and don't used Ai solutionarrow_forwardWhat is the name of the major product formed during the reaction between benzoyl chloride and phenol? benzyl ester O phenyl benzoate ○ cyclopentanoate ○ benzyl phenoate ○ benzenecarboxylic acidarrow_forwardProvide the proper IUPAC or common name for the following compound. Dashes, commas, and spaces must be used correctly.arrow_forward
- Provide the proper IUPAC name (only) for the following compound. Dashes, commas, and spaces must be used correctly. HO. OHarrow_forwardQuestion 2 0/1 pts Provide the proper IUPAC name only for the following compound. Dashes, commas, and spaces must be used correctly. HO CH 3 1-methyl-1-cyclohexanecarboxylic acidarrow_forwardPlease assign all the carbons for C-NMR and hydrogen for H-NMR. Please if I can get that less than hourarrow_forward
- Please can I have e mechanism for this equation, handwriting pleasearrow_forward3. For the following reaction, what are the major product(s) mechanism for this reaction ? and draw the full Br Brarrow_forward4. Show the product(s) for the following reaction if it proceeds via the S42 mechanism AND if it proceeds via an Syt mechanism? Draw the mechanisms for both reactions and show all resonance structures for any intermediates. Would you expect the Su or Sy2 reaction to be favoured and why? NGOarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning

