Download Assignment 4 Task 1a

Scenario: You are working as a CSI in a forensic biochemistry laboratory. You
have been assigned to a new case and are working as part of a team to solve the
case. Working in the laboratory you will need to have a good understanding of
the conventions adopted to ensure that all chemical compounds have unambiguous
names. You also need to understand how a combination of elements with carbon at the centre
can have a number of different structures and how these structures influence their properties. This
will allow you to be able to identify compounds and use this to continue with further analysis.
You should also have an understanding of some organic processes, such as esterification, to
enable you to develop solutions to chemical problems and to be able to relate your knowledge to
biological situations.
Assignment 4 Task 1a:
Naming organic compounds
1. Match the correct name to the correct formula.
Chemical name
Structural formula
A.
B.
CH2BrCH═CHBr
C.
CH3CHBrCH2I
D.
CH3
E.
1,2-difluropropene
1
2-methylpropene
2
cyclohexene
3
2-iodo-3-methylbutane
4
H
2-bromo-1-iodopropane
5
C═C
F
CH3C═CH2
F.
CH3
benzene
F
6
G.
1,3-dibromopropene
2.
7
Complete the table by filling in the spaces.
Family
Examples
Group
Suffix
(name
structural
IUPAC
ending)
formula
name
Alkene
but-1-ene
-ene
Halogenoalkanes
-Cl
-Br
-I
C-OH
propan-2-ol
Full
Carboxylic
oxalic acid
Acids
CH3CH2
Aldehydes
C=O
H
-one
propanone
Amine
diethylamine
-amine
3.Name these alcohols:
(a)
CH3CH2CH2CH2OH
(b)
CH3CH(OH)CH3
n-butanol
isopropil alcohol
4. Write down the full structural formula for the following alcohols:
(a)
butan-2-ol
(b)
2-methylpropan-1-ol
(c)
4-methylhexan-1-ol
CH3CH(OH)CH2CH3
C4H10O1
C7 H16 O
5. Draw cis and trans isomers for 3-methyl-2-pentene.
H3C
CH3
CH3
6. Draw cis and trans isomers for butane.
7. Draw the optical isomers for (+)-butan-2-ol and (-)-butan-2-ol.
8. Draw the optical isomers for 2-amino propanoic acid.
H
CH3
C
COOH
NH2
Properties of organic compounds
Task 1b
[P7 criteria]
The ability of carbon to form extensive molecules made up of chains and branches and including
unique functional groups gives rise to an almost infinite number of organic compounds that have
properties and structures that lend themselves to biological processes. Some of these processes
involve the functional groups and others rely upon the physical shape of the molecule. An
additional part of your work in the biochemistry laboratory involves knowledge of how organic
molecules will behave in certain situations.
Task 1b details:
Design a poster (one slide on Powerpoint or draw by hand.
-At least 6 classes of organic compounds (alkenes, alcohols, aldehydes, ketones, carboxylic acids
and amines). Draw and name an example of each.
-The physical properties of the organic compounds chosen
-Write down the names of main reactions that these compounds take part in.
- Also write down the chemical equations for the reactions you have selected.
Display your information clearly and neatly.
Use your knowledge and understanding of task 1a, along with the information sheet for this task
(task 1b) to complete this task.
Simple Organic Reactions
Task 2
[M4 criteria]
Carbon has an ability to form a virtually unlimited range of compounds, which has led to a wide
range of living organisms made out of molecules containing carbon. Knowledge of organic
chemistry enables chemists to develop and manufacture medicines, agricultural chemicals,
anesthetic’s and other chemicals whose effects on life processes are important to humans. So
there is little doubt of the importance of organic chemistry in industry, particularly in forensic
analysis.
Task 2 details:
Complete worksheet 2 – ‘Predicting the products of organic reactions.’
You will need to correctly
-identify and name the products of the organic reactions shown.
-draw out the correct chemical structures.
-Also write the reaction condition and the reagents.
Use your knowledge and understanding of tasks 1a and 1b to complete this task.
Task 2 – Predicting the products of organic reactions
Write down the name of the reactions shown below and draw the structures of and
name the products that are formed.
(1)
C3H7NH2
Amine reaction
+
→
HCl
Reaction name…………………………………..
Product(s) formed…………………………………
(2)
Alcohol reaction
CH3CH2OH
+
→ CH3COOH
K2Cr2O7
Reaction name… ………………………………..
Product(s) formed… Acetic acid ………………………………
(3)
H2C=CH2
Alkene reaction
+
HBr
→ CH3 CH2 Br
Reaction name……… halogen acid …………………………..
Product(s) formed…………………………………
(4)
CH3CH3CHOH
Alcohol reaction
+
K2Cr2O7
→
Reaction name…………………………………..
Product(s) formed…………………………………
(5)Aldehyde reaction
O
CH3C-H + K2Cr2O7
→
Reaction name…………………………………..
Product(s) formed…………………………………
(6) Aldehyde reaction
O
C2H5CH + NaBH4
→
Reaction name…………………………………..
Product(s) formed…………………………………
(7) Ketone reaction
O
CH3CCH3 + NaBH4
→
Reaction name…………………………………..
Product(s) formed…………………………………
(8) Carboxylic acid reaction
O
CH3COH + NaOH
→
Reaction name…………………………………..
Product(s) formed…………………………………
(9) Alcohol and carboxylic acid reaction
O
reflux
CH3COH + C2H5OH
→
Reaction name…………………………………..
Product(s) formed…………………………………