'Electrophilic substitution' presentation slideshows

REACTIONS OF AROMATIC COMPOUNDS

REACTIONS OF AROMATIC COMPOUNDS. Electrophilic Aromatic Substitution : The mechanism of many reactions of aromatic compounds are explained by minor variations of electrophilic aromatic substitution.

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Chapter 28 Biomolecules: Heterocycles and Nucleic Acids

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Benzene

Benzene. Part 1. Starter: name the functional group. 1. 2. 3. 4. 5. Learning outcomes. Define arene and aromatic Name aromatic compounds Describe the structure of benzene Review the evidence for this structure Show how electrophilic substitutions occurs with different electrophiles.

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Aromaticity. Reactions of Benzene Chapter 8

Aromaticity. Reactions of Benzene Chapter 8. Contents of Chapter 15. Aromaticity Heterocyclic Compounds Chemical Consequences of Aromaticity Nomenclature Reactivity Considerations Mechanism for Electrophilic Substitution Halogenation/Nitration/Sulfonation of Benzene

907 views • 39 slides

Six membered heterocyclic compounds with one X

Six membered heterocyclic compounds with one X. Structure and Properties The aromatic sextet is complete without participating of the lone pair of nitrogen. Molecular orbital. The unshared electrons is in sp2 orbital and in the same plane of the ring but other

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Conjugated dienes, aromaticity. Allylic and benzylic reactivity. Phenols.

Conjugated dienes, aromaticity. Allylic and benzylic reactivity. Phenols. . Required background: Alkenes Electrophilic addition to alkenes Molecular shapes Stability of intermediates Resonance structures Acidity of alcohols Essential for: 1. Chemistry of the carbonyl group

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Chapter 17 & 18 Discussion

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ARENES

ARENES. Part 6 Aromatic chemistry Bonding understand the nature of the bonding in a benzene ring, limited to planar structure and bond length intermediate between single and double. Delocalisation stability

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Reactions of arenes

Reactions of arenes. L.O.: Outline the mechanism of nitration. Outline the mechanism of of acylation. Identify the reactive intermediates involved in nitration and acylation. Name the mechanisms of both reactions. STRUCTURE OF BENZENE. STRUCTURE OF BENZENE. STRUCTURE OF BENZENE. NITRATION.

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Electrophilic Substitution Reactions of Benzene

Electrophilic Substitution Reactions of Benzene. Aim: To describe the electrophilic substitution of arenes with concentrated nitric acid in the presence of concentrated sulphuric acid. Outline the mechanism of the above reaction. The Reactions of Benzene.

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A2 Chemistry Chapter 2

A2 Chemistry Chapter 2. Chapter 2 Objectives. Properties of Phenol. Phenol + NaOH. Delocalisation of Benzene. Phenol + Na (s). Nitration of Benzene. Halogenation of Benzene. Phenol + Br 2. SAQ 2.1. SAQ 2.3. SAQ 2.6. A2: Arenes Chapter 2 Objectives (1-8).

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NITROGEN COMPOUNDS (Amines)

NITROGEN COMPOUNDS (Amines). Physical properties of amines Formation of amines Basicity of amines Reactions of phenylamines. Amines : Physical properties. Amines are derivatives of ammonia ( ? 1 hydrogen atoms replaced by carbon chains).

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Electrophilic substitution reactions of benzene

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Cyclic and heterocyclic aromatic compounds

Cyclic and heterocyclic aromatic compounds. Outline 1. Polycyclic aromatic hydrocarbons 2. Basicity and acidity of the nitrogen heterocycles 3. Chemistry of pyrrole, furan, and thiophene 4. Chemistry of pyridine.

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Reaction Mechanism Animation

Reaction Mechanism Animation. Briefing Seminar on Revised Sixth Form Chemistry Curriculum 19 March 2005. Related topics in the curriculum. 12.1 Alkanes and radical substitution 12.2 Alkenes and electrophilic addition 12.3 Benzene and electrophilic substitution

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