Question

2. Draw the structures of the following organic compounds.

a) 3-iododecane

b) 1-bromobutane

c) 3-chloro 2,4-dimethyl pentane

d) 4-ethyl 3-methyl 2-hexene

e) 3-methyl 1,3,6-heptatriene

f) 4-trans-octene

g) 5-ethyl 3-methyl 1-heptyne

h) p-dipropyl benzene

i) 3-ethyl 1-methyl 5-propyl benzene

j) 2-methyl 1-phenyl propane

k) 1,2,2,3,5-pentafluoro cyclohexane

l) 3-bromo 2-chloro 4-methyl hexane

Answer 1

a) 3-iododecane:

I
|
CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3

b) 1-bromobutane:

Br
|
CH3-CH2-CH2-CH2-CH3

c) 3-chloro 2,4-dimethyl pentane:

Cl
|
CH3-CH(CH3)-CH(CH3)-CH2-CH2-CH2-CH3

d) 4-ethyl 3-methyl 2-hexene:

H
|
CH3-CH2-CH=C-CH2-CH2-CH3

e) 3-methyl 1,3,6-heptatriene:

H
/
CH2=C-CH2-C=C-CH=CH2

f) 4-trans-octene:

H H
| |
CH3-CH2-CH=CH-CH2-CH2-CH2-CH3

g) 5-ethyl 3-methyl 1-heptyne:

H H
| |
CH≡C-CH2-CH2-C≡CH

h) p-dipropyl benzene:

CH3-CH2-CH2-CH2
|
H3C-C6H4-C6H4-CH2-CH2-CH2-CH3

i) 3-ethyl 1-methyl 5-propyl benzene:

CH3-CH2-CH2
|
H3C-C6H4-CH2-CH(CH3)-CH2-CH2-CH3

j) 2-methyl 1-phenyl propane:

CH3 C6H5
| |
CH3-CH-CH3

k) 1,2,2,3,5-pentafluoro cyclohexane:

F F
| |
F-C6H10-C6H10-C6H10-C6H10-C6H10-F
| |
F F

l) 3-bromo 2-chloro 4-methyl hexane:

Br
|
CH3-CH2-CH(CH3)-CH(Cl)-CH2-CH2-CH3

Answer 2

can you redraw d) please?

Answer 3

Certainly! Here's a redrawn structure of d) 4-ethyl 3-methyl 2-hexene:

CH3-CH2-CH=C(CH3)-CH2-CH2-CH3

Answer 4

can you redraw e) please?

Answer 5

Certainly! Here's a redrawn structure of e) 3-methyl 1,3,6-heptatriene:

CH3 H
| \
CH2=C-CH=CH-CH2-CH=CH2

Answer 6

Where does CH3 H in e)?

Answer 7

Apologies for the error in the previous response. Here is the corrected structure for e) 3-methyl 1,3,6-heptatriene:

CH3 H
| \
CH2=C-CH=CH-CH=CH2

Answer 8

can you redraw e) again please?

Answer 9

Apologies for the confusion. Here is the corrected structure for e) 3-methyl 1,3,6-heptatriene:

H
|
H2C=C-CH=CH-CH=CH-CH3

Answer 10

Can you redraw J) again, please

Answer 11

Certainly! Here's a redrawn structure of j) 2-methyl 1-phenyl propane:

CH3
|
CH3-CH-CH2-C6H5