Detailed Lesson Plan in Organic Chemistry- Grade 10
THIRD QUARTER/THIRD GRADING PERIOD
Prepared by: Shamarie Love R. Maribao
I. Objectives
At the end of the lesson, at least 85% of the students will be able to:
a.
b.
c.
d.
define the cyclic hydrocarbon compounds;
name the different cyclic compounds based on structures given;
draw the structural formula of the given cyclic hydrocarbon; and
appreciate the organic compounds that is used in everyday through identifying
examples that essential in daily routine.
II. Content
a. Subject Matter:
Subject: Organic Chemistry
Topic: Naming and Structural Writing of Cyclic Hydrocarbon
b. Integration: Geometry
c. Values: Patience, Following Rules and Instructions, Collaboration
d. Strategies: Collaborative, Inquiry-based Learning
e. Materials: TV, Laptop,
f. References: Fundamentals of Organic Chemistry (6th Edition) by John Mcmurry and
Erik Semanik
III. Learning task/procedure
Teacher’s Activity
a. Daily Routine
“Goodmorning class”
“ I am Ma’am Sha, a student of College of
Education major in General Science as well as
a teacher that standing here in front of you.”
And I want you to remember this rules,
1. If I will raise my hand and “Close my
fist” it means be Silent. Then, listen
attentively.
2. If I raise “Two Thumbs up” tap your
seatmate and say “ORG CHEM TIME”
3. And when I say “Class”, You will
respond “Okeey Keyoow”. And I will
start the discussion.
Did you get it?
Student’s Activity
“Goodmorning Ma’am”
“Yes Ma’am”
Students answer in chorus.
Thank you. So now, Please all stand and pick
up pieces of papers that surrounds your chair.
After that you may now take your seat.
b. Review of previous topic
Did the last meeting’s topic instill in your “Yes Ma’am”
minds?
So, I have a question for you, Where is the
starting point of naming a substance if you are
given this structure?
“ student answer, In the left side of the
structure and it is 3,3- dimethylpent-2-ene”
“ Yes, Brilliant”
Another one, How can you name this
structure?
“ student answer 3- methylhexane”
“Yes, Right. Very Good!
“ We need to find first the longest continuous
What chain are we going to consider 1st in C chain so that we can start naming an organic
naming an organic compound?
compound”
Yes, That’s Right!.
c. Motivation
“You already know how to name “Yes Ma’am”
structures that looks like these, right?”
1.
2.
“ How about if the structure of a compound
will looks like these?”
1.
2.
3.
“How can we name these structures?
Anyone from the class who has an
idea?
“Yes, you have that idea!”
“But how can we classify this figures
since it is enclosed?”
“ It is the same way as the last topics’ naming
ma’am”
What do you think is our topic for
today?
Student just listen with curiousity.
Students guessing.
d. Lesson Proper
“As far as each of you know how to name and
make a structure about the open-chain
hydrocarbons which is the last meetings topic.
But, there are also chains of compounds that
can be classify as rings of carbon atoms. These
series of atoms in a compound that as you can
see, vary in sizes. These compounds that
connects to form a ring is called as the
CYCLIC HYDROCARBON. It is mainly
composed of Carbon and Hydrogen atoms. It
composes a –CH2- units and follows a general
formula (CH2)n . Those examples that I give
you earlier are the examples of a cyclic
hydrocarbon.”
What do you think is the difference between an
open-link chain and cyclic hydrocarbon
compound? Can I hear the voice from the Student standing. “ For me ma’am, In order to
person at the back?
differentiate the cyclic from open-link, we will
use the prefix “cyclo” for cyclic hydrocarbons.
“Yes, Brilliant idea!”
“ It is Cycloalkenes Ma’am”
If the ring is bonded in a single bond, we call
it as Cycloalkanes. What about in double
bond?
“ Cycloalkynes”
Very Good!
In triple bond?.....
Great!
“Select the LONGEST continuous chain of
So we follow different steps in naming a cyclic carbon atoms containing the functional group
hydrocarbon compound. In the previous topic, or multiple bond.
What is the 1st step in naming a hydrocarbon
compound?
Yes, That’s Right! The same as in cyclic
hydrocarbon, there is a need to
1. Determine the cycloalkane to use as the
parent chain. The parent chain is the
one with the highest number of carbon
atoms. If there are two cycloalkanes,
use the cycloalkane with the higher
number of carbons as the parent chain.
2. If there is an alkyl straight chain that
has a greater number of carbons than
the cycloalkane, then the alkyl chain
must be used as the primary parent
chain. Cycloalkane acting as a
substituent to an alkyl chain has an
ending "-yl" and, therefore, must be
named as a cycloalkyl.
Just for example, In these figure,
“ A student standing. It is “Cyclopropane
Ma’am”.
How can we name this one?
Anybody from the class?
You have the idea!
But remember in the 2nd rule. We need to
consider also the longest straight chain in the
figure.
The longest straight chain contains 10 carbons,
compared with cyclopropane, which only
contains 3 carbons. Because cyclopropane is a “Yes, Ma’am”
substituent, it would be named a cyclopropyl
substituted alkane.
Did you get it class?
3. When naming the cycloalkane, the
substituents and functional groups
must be placed in alphabetical order.
Like for example the “2-bromo-1-chloro-3methylcyclopentane”
NOTE: That "f" of fluoro alphabetically
precedes the "m" of methyl. Although "di"
alphabetically precedes "f", it is not used in
determining the alphabetical order.
4. Name the compound.
Let’s start now with naming a single bond
which is the cycloalkanes.
“ The first one is the open-chain hydrocarbon
and the other one is the cyclic hydrocarbon”
What is the difference between these two
figures?
Very Good!!
“It is also based from the rules given Ma’am”
How can we name this Cyclic Hydrocarbon?
Any wild guess from the class?
Yes, in this figure, you have your freedom to
choose in what carbon would like to start
counting.
(counting)
“There are 4 carbon atoms and 8 Hydrogen
atoms Ma’am.
How many carbon and hydrogen atoms are
there in this figure?
Student just listening.
“Since it is cyclic hydrocarbon we will use the
Very Good!
Word “Cyclo “ and Butane since it is a single
bond.”
Since, It has 4 carbon atom, How can we name
it now?
“Yes, Ma’am”
Now, Combine the two words to form one
word
“Cyclobutane” is the name of the first
example.
Did you get it class?
What if we have this kind of structure now:
A student volunteer. “ It is cycloheptene”
“ It is because it has a double bond Ma’am.
“I want a volunteer from the class to answer
this one”
Wow, you have a sharp mind! Why do you say
so?
That’s Right!
What about if there is now a substituent? How
can we name it now?
If the figure is just like this:
Students in silence.
In this example, how are we going to name this “It’s Cyclobutane Ma’am”
one? What is the name of the compound if
there is now substituent?
But before that, What is the name of the ring “The name should be in alphabetical order
form?
ma’am if both is in equidistant. So the carbon
one will start in the Ethyl group.”
Very Good! How about if we consider the
substituent? Which is the carbon number 1?
What should we do if there is two or more
substituents? And in equidistant?
Yes, Brilliant idea!
“You are so intelligent class.”
Another example, if we had this kind of
structure, How can we name this structure?
“It is 1- heptylcyclobutane”
I want Ms……
In silence.
.
“If there is an alkyl straight chain that has a
greater number of carbons than the
cycloalkane, then the alkyl chain must be used
“Are you sure?”
as the primary parent chain. Cycloalkane
acting as a substituent to an alkyl chain has an
Remember again class, We should follow the ending "-yl" and, therefore, must be named as
rule, What is the Rule number 2 again?
a cycloalkyl.”
(calling randomly)
Student nodding “Yes, Ma’am”
“ Yes, Ma’am”
Yes! So, in the given structure the cyclic
hydrocarbon there will turn into a substituent.
Are we clear with the naming of cyclic
hydrocarbon class?
Students answering in the board.
Let’s Proceed now to Structure making which “GROUP 1”
is much easier than naming a compound.
If you are given a name :
1.
2.
3.
4.
1-Bromo- 3-Flourocyclohep-2-ene
3- cyclohexyloct-2- ene
4,5-dimethylcyclodecene
3-ethyl-1,3-dimethylpentane
“GROUP 2”
“You will draw the structure of this names in
the board. It is by group.
This row is for 1st group……..followed by the
2nd third and fourth.
You will answer the following corresponding “GROUP 3”
item in the board.
In 3 minutes, “TIMER STARTS NOW”
“GROUP 4”
“ Are we all done”
You may now go back to your seats.
Let us check your work.
(checking each groups work.)
“Is all the structures correct?”
“Who says no? And who says it is correct?” No one answers.
And why?
GROUP 1 REPRESENTATIVE STANDING.
Okay, I want a volunteer from the group to And answer.
explain the answers.
GROUP 2 REPRESENTATIVE STANDING
Very good! Group 1, let us go now to the
group 2.
GROUP 3 REPRESENTATIVE STANDING
Brilliant!
GROUP 4 REPRESENTATIVE STANDING
Now, the group 3.
You’re so good class. Let’s here now the
Group 4 answer!
Yes, Correct.
Since, you already know how to construct
structures based on the given name.
“Yes, Ma’am”
Are still with me Jupiter?
Again, what is cyclic hydrocarbon?
“Cyclic hydrocarbon is also chains of
compounds that can be classify as rings of
carbon atoms. These series of atoms in a
compound that as you can see, vary in sizes.
These compounds that connects to form a ring
What a sharp mind!
What prefix are we going to add in naming
cyclic hydrocarbon?
“ It’s –cyclo Ma’am.”
“What are the things that we should remember “The prefix cyclo in the parent name, assign
in naming cyclic hydrocarbon compounds?”
locant numbers to substituents in a way that
substituents have the lowest possible locants,
and arrange the name alphabetically.”
What is the Importance of Cyclic
Hydrocarbon in our daily life?
“In day to day living, the cyclic organic
compounds gives us knowledge on what we
are dealing with every day, like the food we eat
that contains preservatives. The soap, shampoo
, lotion and different materials that can we infer
with hydrocarbon compound. We can now
read properly the ingredients that we use in our
shampoo, soap, and other things that we use
every day.”
Yes, That’s Right.
Thank you Jupiter! You have the sharp mind.
Cyclic hydrocarbon is very important. Based
on you classmates, this will help you read
about the labels of foods preserve, the
chemicals compounds on the things we used
and many more.
Every single day, we encounter different
organic compounds. And I want you to instill
in your minds that everything exist has it’s
own purpose. So give importance on it.
And that’s all about Cyclic Hydrocarbon
compound. Are you ready now for a short
quiz?
Let’s see if you really understand the topic.
IV. EVALUATION
Test I.
Short answer. Answer each question to the bests of ability on the space provided.
1. What is a cyclic hydrocarbon compound?
_____________________________________________________________________
____________________________________________________________________.
2. What is the difference between an open-link chain and a cyclic hydrocarbon?
_____________________________________________________________________
____________________________________________________________________.
Test II.
Identification. Give the name or structure of the following hydrocarbons in column A,
write your answer on the space in column B.
Column A
Column B
1-sec-butyl-4-ethyl-3,4dimethylcyclopentane
1.
4-cyclopentylnonane
2.
3. 3,5,7-tripropylcyclooctene
4. 4-ethyl-9-isopropylcyclodecyne
V.
Assignment
In a ½ crosswise, Formulate your own Cyclic Hydrocarbon Compound.