Why is O—CH₃, ortho and para directing in aromatic electrophilic substitution?

Solution

Oxygen of —OCH₃ forms a partial double bond with carbon of benzene nucleus to which it is attached. –OCH₃ is an electron donating group and activates the benzene nucleus and increases electron density at ortho and para position.

Some More Questions From Alcohols, Phenols and Ethers Chapter

Name the following compounds according to IUPAC system.

Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal?

Write structures of the products of the following reactions:

Give structures of the products you would expect when each of the following alcohol reacts with,
(a) HCl—ZnCl₂ (b) HBr and (c) SOCl₂.

(i) Butan-1-ol (ii) 2-Methyl butan-2-ol.

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Alcohols, Phenols And Ethers

Why is O—CH₃, ortho and para directing in aromatic electrophilic substitution?

Some More Questions From Alcohols, Phenols and Ethers Chapter

Name the following compounds according to IUPAC system.

Name the following compounds according to IUPAC system.

Name the following compounds according to IUPAC system.

Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal?

Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal?

Write structures of the products of the following reactions:

Write structures of the products of the following reactions:

Give structures of the products you would expect when each of the following alcohol reacts with,
(a) HCl—ZnCl₂ (b) HBr and (c) SOCl₂.

(i) Butan-1-ol (ii) 2-Methyl butan-2-ol.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Alcohols, Phenols And Ethers

Why is O—CH3, ortho and para directing in aromatic electrophilic substitution?

Some More Questions From Alcohols, Phenols and Ethers Chapter

Name the following compounds according to IUPAC system.

Name the following compounds according to IUPAC system.

Name the following compounds according to IUPAC system.

Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal?

Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal?

Write structures of the products of the following reactions:

Write structures of the products of the following reactions:

Give structures of the products you would expect when each of the following alcohol reacts with,(a) HCl—ZnCl2 (b) HBr and (c) SOCl2.(i) Butan-1-ol (ii) 2-Methyl butan-2-ol.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Why is O—CH₃, ortho and para directing in aromatic electrophilic substitution?

Give structures of the products you would expect when each of the following alcohol reacts with,
(a) HCl—ZnCl₂ (b) HBr and (c) SOCl₂.

(i) Butan-1-ol (ii) 2-Methyl butan-2-ol.