List Of Important Topics To Study From Organic Chemistry For The CSIR NET Chemical Science Exam

All CSIR NET aspirants hope to pass the CSIR NET Chemical science Exam with a high ranking. And for that Along with hard work, following an exam preparation strategy is also important.

To begin, gather the CSIR NET Chemical Science syllabus and then analyze every aspect – Organic Chemistry, Physical Chemistry, and Inorganic Chemistry. Mark all the important concepts in the given syllabus based on their weightage in the exam. Then, make a plan for preparation by creating an effective study schedule.

The CSIR NET Chemical Science question paper is divided into three sections.

  • Part A consists of a general aptitude paper.
  • Parts B and C are papers on chemical science.
  • Part B contains 2 marked questions with a negative marking of 0.5.
  • Part C carries 4 marks for each question and 1 negative mark for every wrong answer.

You must answer carefully as there is a negative marking. So start your preparation for the CSIR NET Chemical Exam on time with a perfect strategy.

Here is a list of the most important organic chemistry topics and references for the CSIR NET Exam Chemical Science.

1.Principles of stereochemistry: Stereogenicity, stereoselectivity, enantioselectivity, diastereoselectivity

Stereochemistry is one of the most important topics in organic chemistry for CSIR NET preparation. To begin, you must understand the fundamentals of stereochemistry. If you’re having trouble solving the chemical mechanism, it’s because you don’t understand the fundamentals of stereochemistry. Improve your fundamentals first, then move on to the actual stereochemistry syllabus. Begin with graduate-level books and work your way up to advanced references. The majority of the Part-C questions come from this section.

Here is a list of books that can be used to learn stereochemistry.

2. Organic reactive intermediates: carbocation, carbanions, free radicals, benzynes.

Reactive intermediates are the fundamental building blocks of organic chemistry. To write any mechanism, you must first determine which intermediate must be formed. Only then you will be able to complete organic reactions at that point. Every reaction mechanism is preceded by the formation of intermediates. This concept is simple and easy to grasp, but you must understand how to apply it when writing a reaction.

3. Organic reaction mechanisms involve addition, elimination, substitution, common named reactions, and rearrangements.

Next on the list of the most important organic chemistry topics for CSIR NET is organic reaction mechanisms, which are primarily composed of various types of reactions. For instance, substitution, addition, elimination, rearrangement, etc.

The only thing you need to understand is the breaking and formation of bonds within a reaction. The majority of the reactions are studied in terms of stereochemistry, solvent effects, substitute effects, and so on. As a result, this concept should be studied as well.

Some references for this concept are

4.Pericyclic reactions: cycloaddition, sigmatropic. Principles and applications of photochemical reactions. 

Molecular orbital concepts of organic moiety are studied in pericyclic reactions. Specifically, the cycloaddition reactions in which the HOMO and LUMO concepts are emphasized, and some of the important named reactions, such as Diels alder reactions, are thoroughly studied. The syllabus is frequently extensive, but this chapter covers the most important concepts.

The references you can refer to for this chapter are:

5. Synthesis and reactivity of common heterocyclic compounds containing O, N, S. 

Heterocyclic chemistry, which is primarily concerned with the study of all cyclic rings containing N, O, and S atoms, is next on the list of the most important organic chemistry topics for CSIR NET. The reactivity of heterocyclic compounds consists primarily of some important named synthesis, such as Hantzsch synthesis, Guareschi synthesis, Comb’s synthesis, etc. Everything is covered in detail, from preparation to structure, stability, and reactions.

Some important references you can refer are,

6. Structure determination of organic compounds

Organic compound structure determination is primarily accomplished through the use of UV spectroscopy, IR spectroscopy, mass spectroscopy, and Proton/C13 NMR spectroscopy, as well as Molecular spectroscopy. You must investigate each spectroscopy in terms of its graph interpretation or frequency range, how it varies with respect to substituents, how exactly they couple to give signals, and so on. If you understand the spectroscopy section, you are almost halfway to giving a tough competition to others.

The following books can be used as references for this chapter:

7. Asymmetric synthesis, determination of enantiomeric and diastereomeric excess, enantio-discrimination. Resolution – optical and kinetic :

Another important topic in organic chemistry in terms of CSIR NET is the Asymmetric synthesis of organic compounds, which primarily includes chiral auxiliaries, asymmetric reagent induction, substrate, and catalyst-controlled reactions. Diastereomeric and enantiomeric excesses are also determined. The organic compound resolution requires both optical and kinetic resolution. This concept is a little challenging to grasp at first, but if you start with the fundamentals of stereochemistry, you will find it easy.

There are several reference books to which you can refer, some of them are:

8. IUPAC Nomenclature, Organic transformations, reagents, and Aromaticity: 

IUPAC nomenclature is one of the most important topics in organic chemistry with respect to CSIR NET because giving names to chemical compounds helps to identify the structure. The nomenclature section begins with the fundamentals and progresses to R, S configuration, E, Z configuration, bicyclic and spiro compounds, and so on. It includes functional group interconversions, oxidation and reduction, and other processes in the organic transformation section. Aromaticity is the study of all benzenoid and non-benzenoid compounds.

You can look up information in the following books:

9. Concepts in organic synthesis: Retrosynthesis, disconnection, synthons, linear and convergent synthesis, umpolung of reactivity, and protecting groups:

Organic synthesis is a unique concept in which the reactions are derived in reverse. The concept of functional group interconversion is being used in this case. The role of liner and convergent synthesis, umpolung of reactivity, and protecting groups in many reactions are studied in this section.

You can refer to the following references:

10. Chemistry of natural products: Carbohydrates, proteins, peptides, fatty acids, nucleic acids, terpenes, steroids, and alkaloids. Biogenesis of terpenoids and alkaloids:

Carbohydrates, proteins and peptides, fatty acids, nucleic acid, terpenes, steroids, and alkaloids are among the natural products studied. The biosynthesis of alkaloids and terpenoids by microorganisms or chemical methods is also studied. The study begins with their preparation method and progresses to reactivity parts, stereochemistry, extraction methods, and so on.

The sources you can use are as follows:

So, these were some of the important topics of Organic chemistry, along with the reference books. Organic chemistry is not a difficult subject. The only thing is that you must fully understand t from the basics. Do not skip any topics, and prepare thoroughly to stay ahead of the game.

For further read:

Keywords: Important topics of Organic chemistry for the CSIR NET Chemical Science Exam


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