Process for separating primary and secondary amines

Details Process for separating primary and secondary amines Process for separating primary and secondary amines

1978-03-23

1981-12-15

Schwartz, Richard A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

564216, 564305, 564462, 564499, C07D29502, C07C 8526

Patent

active

043060684

ABSTRACT:
A method for separating primary and secondary amines by contacting a mixture thereof with mesityl oxide, which forms acetone and an adduct with the primary amine. Acetone is removed to force the reaction. The reaction is particulary useful for separating close boiling amines. The primary amine adducts have high boiling points, thereby allowing the secondary amine to be recovered in high purity by distillation. The primary amine may also be recovered by hydrolyzing the adduct which produces the primary amine and acetone.

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