Classification of Organic Compounds
Session 2: Classification of Organic Compounds.
Total Session Time: 60 minutes
Prerequisites
Learning Tasks
By the end of this session students are expected to be able to:
Resources Needed:
SESSION OVERVIEW
|Step |Time |Activity/ |Content |
| | |Method | |
|1 |05 minutes |Presentation |Introduction, Learning Tasks |
|2 |40 minutes |Presentation |Classification of Organic compounds |
| | |Group | |
| | |Discussion | |
|3 |05 minutes |Presentation |Key Points |
| 4 |10 minutes |Presentation |Evaluation |
SESSION CONTENTS
STEP 1: Presentation of Session Title and Learning Tasks (5 minutes)
READ or ASK students to read the learning tasks and clarify.
ASK students if they have any questions before continuing.
STEP 2: Classification of Organic Compounds (40 minutes)
| |
|Activity: Small Group Discussion (20 minutes). |
| |
|DIVIDE students into small manageable groups. |
| |
|ASK students to discuss on the following question. |
|How do we classify Organic Compounds? |
| |
|ALLOW students to discuss for 15 minutes. |
| |
|ALLOW few groups to present and the rest to add points not mentioned. |
| |
|CLARIFY and SUMMARIZE by using the contents below |
o Acyclic or open chain compounds,
o Alicyclic or closed chain or ring compounds,
o Aromatic compounds and
o Heterocyclic aromatic compounds
Acyclic or open chain compounds:
o These compounds are also known as aliphatic compounds, they have
branched or straight chains. Following are the examples in this
category.
[pic]
o These are cyclic compounds which contain carbon atoms connected to
each other in a ring (homocyclic).
o When atoms other than carbon are also present then it is called as
heterocyclic. Examples of this type are as follows:
[pic]
o They are a special type of compounds which contain benzene and other
ring related compounds.
o Similar to alicyclic, they can also have heteroatoms in the ring.
o Such compounds are called as heterocyclic aromatic compounds.
o Some of the examples are as follows:
[pic]
[pic]
Eg Tropolone
[pic]
hydrocarbons.
o Hydrocarbons are compounds containing carbon and hydrogen
o Saturated hydrocarbons are those in which adjacent carbon atoms are
joined by a single covalent bond and all other bonds are satisfied
by hydrogen.
o Unsaturated hydrocarbons have at least two carbon atoms that are
joined by more than one covalent bond and all remaining bonds are
satisfied by hydrogen.
[pic] [pic]
Fig.1. Diagrammatic Classification of Organic Compounds
[pic]
STEP 3: Key Points (05 minutes).
Alicyclic or closed chain or ring compounds, Aromatic compounds and
Heterocyclic aromatic compounds.
hydrocarbons.
STEP 4: Evaluation (10 minutes).
References
States: W.B. Saunders Co.
Morrison R.T and Boyd R N (1997). Organic Chemistry (6th Ed.). New Delhi,
India: Prentice Hall of India
Graham Solomon et al (2014). Organic Chemistry (11th Ed.). New Jeysey,
United States: John Willey and Sons.
Rama R. N. (2005). Principles of Pharmaceutical Organic Chemistry. New
Delhi, India: MacMillan Publishers
Bruice Y (2013). Organic Chemistry (7th ed.). New York, United States:
Prentice Hall Pearson.
Delgado J. N. Et al (1998). Wilson and Gisvold's Textbook of Organic
Medicinal and Pharmaceutical Chemistry (10th Ed.). California, United
States: Lippincott Williams
Bhassin S.K, Gupta R.(2013). Pharmaceutical organic chemistry (E-book
Kindle edition). New Delhi, India: Elsevier Publishing Services
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