Phenol & Aniline

Primary info about Phenol & Aniline and its resonance.

1. Topic : Phenol & Aniline Presented by : Mohabbat Mandal Presented to : ID:171-150-0-155 Laudmila Haque Mehedi Hasan Naim Sr. Lecturer of Environmental Science ID:171-151-0-155 BGMEA University of Fashion & Technology Afrana Anam Any ID:171-152-0-155 Shahadat Hossain ID:171-153-0-155 Kamrul Islam Omi ID:171-154-0-155

2. Content Introduction Phenol Preparations Reactions with Phenol Resonance of Phenol Aniline Preparation Reactions of Aniline Resonance of Aniline

3. Phenol In organic chemistry, a class of chemical compounds consisting of a hydroxyl group ( —OH ) bonded directly to an aromatic hydrocarbon group. The simplest of the class is phenol, which is also called carbolic acid OH.   Aniline Aniline is an organic compound consisting of a phenyl group( C 6 H 5 ) attached to an amino group ( —NH 2 ) .The formula is C 6 H 5 NH 2 .

4. Phenol Preparations benzene sulfonic acid chlorobenzene cumene diazonium salts Acidic Oxidation From Sodium Hydroxide or b y Base From Sodium Hydroxide/ Chlorobenzene/ Daw process By Hydrolysis 650k, 300atm

5. Reactions with Phenol ( Aryl ketone via C-acylation, a Friedel -Crafts reaction ) ( ester via O-acylation, an esterification ) Acylation of Phenols Halogenation C arboxylation of Phenol A spirin Acyl chloride

6. Resonance of Phenol Phenol is acidic in nature. It will lose Hydrogen cation to form Phenoxide ion which is more stable than Phenol. Resonance structures of Phenol:

7. Aniline Preparation From Nitrobenzene F rom chlorobenzene From Benzoic acid

8. Reactions of Aniline 1. 2. 3.

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10. Resonance of Aniline Basicity: Aniline is a weak base. ... Traditionally, the weak basicity of aniline is attributed to a combination of inductive effect from the more electronegative sp2 carbon and resonance effects, as the lone pair on the nitrogen is partially delocalized into the pi system of the benzene ring.

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