Imines from mesityl oxide
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United States of America Patent
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-
Jun 1, 1982
Issued Date -
N/A
app pub date -
Sep 8, 1980
filing date -
Mar 23, 1978
priority date (Note) -
Expired
status (Latency Note)
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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 particularly 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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