Monday, July 13, 2020

Definition & classification [different types of isomerisms] STRUCTURAL ISOMERISM in Stereochemistry I online class

Lecture on Introduction to Structural Isomerism


An online class voice over by Dr. Rojisha V. C. and student Dr. Rahul Soman for GPAT aspirants, In this class she explains - Definition & classification [different types of isomerisms].

- ISOMERISM

   - Structural Isomerism

   - Chain Isomerism

  - Positional Isomerism

  - Functional Isomerism

  - Tautomerism

   - Metamerism

definition with example for all above isomerisms



Online Lecture in English




Online Lecture in Malayalam









GPAT Syllabus / Organic chemistry / Stereochemistry



GPAT Syllabus/ Organic chemistry / Stereochemistry

11. Stereochemistry

Stereochemistry. Chirality & asymmetry [introduction of the same to S, P, & N]. Definition & classification [different types of isomerisms]. Enantiomers, diastereomers. Enantiomerism & diastereomerism. Meso compounds & their optical activity. Stereochemistry in acyclic compounds. Newman projection formulae & their significance. Conformational analysis of nbutane. Absolute & relative configuration. Assigning R & S configuration based on Cahn Ingold & Prelog system. Racemic mixture- its definition & resolution. Definitions of terms stereoselective, stereospecific, Enantiomeric excess & diastereomeric excess. Stereochemistry in cyclic systems. Conformations of cyclohexane. Cis-trans relationship in cyclohexane. Prediction of stability of different conformations of 1, 2- 1,3- & 1,4- disubstituted cyclohexanes. Effect of multiple substitutions on the stability of cyclohexane conformations. Chair conformations of cis-, & trans-decalins, perhydrophenanthrenes, & a tetracyclic steroidal nucleus. An introduction to atropisomerism.

 

Lecture 1: Stereochemistry : Definition & classification [different types of isomerisms].

Lecture 2: Stereochemistry: Stereochemistry in acyclic compounds.  Newman projection formulae & their significance.

Lecture 3: Stereochemistry: Chirality & asymmetry [introduction of the same to S, P, & N]. Enantiomers, diastereomers. Enantiomerism & diastereomerism. Meso compounds & their optical activity.

Lecture 4: Stereochemistry:  relative configuration & Stereochemistry in cyclic systems.

Lecture 5: Stereochemistry: Assigning R & S configuration based on Cahn Ingold & Prelog system.

Lecture 6: Stereochemistry: Conformational analysis of nbutane. Absolute

Lecture 7: Stereochemistry: Conformations of cyclohexane. Cis-trans relationship in cyclohexane. Prediction of stability of different conformations of 1, 2- 1,3- & 1,4- disubstituted cyclohexanes. Effect of multiple substitutions on the stability of cyclohexane conformations.

 

 

 

 

 


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