Nitrogen compounds, polymers and synthesis

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Question 14

In organic synthesis, extending a carbon chain by forming a new carbon–carbon bond is a key step in building complex molecules. A process chemist investigates two different methods to increase the chain length of aliphatic precursors:

Transformation 1: Converting 1-bromopropane into butanenitrile.
Transformation 2: Converting propanal into 2-hydroxybutanenitrile.

For both transformations:

State the name of the reaction mechanism.
Draw the complete mechanism, showing:
- the structures of the organic starting material, intermediate (where appropriate), and organic product,
- relevant dipoles ( $δ+\delta+$ and $δ−\delta-$ ) and lone pairs,
- curly arrows to show the movement of electron pairs.

[6]

Nitrogen compounds, polymers and synthesis

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Question 14

In organic synthesis, extending a carbon chain by forming a new carbon–carbon bond is a key step in building complex molecules. A process chemist investigates two different methods to increase the chain length of aliphatic precursors:

Transformation 1: Converting 1-bromopropane into butanenitrile.
Transformation 2: Converting propanal into 2-hydroxybutanenitrile.

For both transformations:

State the name of the reaction mechanism.
Draw the complete mechanism, showing:
- the structures of the organic starting material, intermediate (where appropriate), and organic product,
- relevant dipoles ( $δ+\delta+$ and $δ−\delta-$ ) and lone pairs,
- curly arrows to show the movement of electron pairs.

[6]

Nitrogen compounds, polymers and synthesis

Question 14

Nitrogen compounds, polymers and synthesis Questions

Nitrogen compounds, polymers and synthesis

Question 14

Nitrogen compounds, polymers and synthesis Questions