Comparative table on the yield achieved with the different chain length.

Amine	Solvent	Purification	Isolated yield (%)
1-Octylamine	Neata	Extractiond	92
1-Decylamine	Neata	Extractiond	94
1-Dodecylamine	Neata	Extractiond	85
1-Tetradecylamine	Neata, methanolb	Extractiond	87
1-Hexadecylamine	Toluenec	Precipitatione	67
1-Octadecylamine	Toluene	—	—

^aActually water is the solvent as present in the reagent but there is no additional solvent used and the water volume is minor with respect to the one of the reagents.

^bMethanol was added after 8 h to ease the runny solid and allow for the reaction to continue.

^cAmine concentration in toluene is 0.2 M.

^dBatch extraction with acetonitrile and petroleum ether.

^eImpurities precipitation via the use of methanol as anti-solvent.