CH3-C=CH-CH2-CH2CH3
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CH3

CH3-CH-CH2-CH3
|
2CH5

CH3 - CH2 - CH2 - CH - CH - CH3
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CH3 CH3

CH≡C-CH2-CH-CH3
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CH3
CH3-C=CH-CH-CH2CH3
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CH3 CH3

CH3-CH=CH-CH=CH-CH3

CH2=CH-C≡CH

CH3
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CH3 - CH - C - CH2 - CH - CH3
| | |
CH3 CH3 SO3H