Pericyclic Reactions.

PERICYCLIC REACTIONS:

Pericyclic Reactions – Syllabus, Named Reactions, Applications & Reference Books Video:

Pericyclic Reaction – Definition and Characteristics video:

Specifications of pericyclic reactions video:

Classification of Pericyclic Reactions:
1. Cyclo addition reactions class video:

2. Electro cyclic reactions Class Video:

Sigmatropic Reactions Class video:

Designation of Sigma tropic reactions Class video:

Pericyclic Reactions – Molecular Orbital Theory Important Postulates Class video:

1. Molecular Orbital Energy Level Diagram of Ethylene Molecule:

2. Molecular Orbital Energy Level Diagram of 1, 3 Butadiene Molecules:

3. Molecular Orbital Energy Level Diagram of 1, 3, 5 Hexatriene Molecules:

4. Molecular Orbital Energy Level Diagram of 1,3,5,7 Octatetraene Molecule:

5. Molecular Orbital Energy Level Diagram of 1 – Propene System or Allylic Molecule:

6. Molecular Orbital Energy Level Diagram of 1,3 Pentadieneyl Molecule:

7. Molecular Orbital Energy Level Diagram of 1,3,5,Heptatriene Molecule:

• Pericyclic Reactions – Stereospecifity.

2. Stereospecifity of Electrocyclic Reactions:
i. Stereospecifity of 4 pi electron System or Anti aromatic System: Example: 1,3 Butadiene System:

ii. Stereospecifity of 6 pi electron System or Aromatic System: Example: 1,3,5, Hexatriene System:

Pericyclic Reactions – Theorems.
1. Orbital Correlating Diagram Method – OCD METHOD:

2. Frontier Molecular Orbital Theory – FMO:
Frontier Molecular Orbital Theory – FMO – Important Postulates Class video:

1. Frontier Molecular Orbital Theory – FMO of Cyclo Addition Reactions:

i. Frontier Molecular Orbital Theory – FMO of Dimerisation of Ethylene or Anti aromatic system or 4n Pi Electron System Class Video :

ii. Frontier Molecular Orbital Theory – FMO of Diels – Alder Reaction or Aromatic system or 4n+2 Pi Electron System Class Video :

2. Frontier Molecular Orbital Theory – FMO of Electrocyclic Reactions:
i. Frontier Molecular Orbital Theory – FMO of 1,3, Butadiene System or Anti aromatic system or 4n Pi Electron System & 1,3,5, Hexatriene System or Aromatic system or 4n+2 Pi Electron System Class Video:

3. Perturbation Molecular Orbital Theory – PMO: