The compound is used as a reagent for the preparation of primary amines from alkyl halides.
[1] It was popularized as an alternative to the Gabriel synthesis for the same conversion.
Amines can also be prepared from alcohols by dehydration using the Mitsunobu reaction.
[2] In the usual implementation the reagent is deprotonated to give the potassium salt, which is N-alkylated.
The Boc protecting groups are subsequently removed under acidic conditions.