1257084-22-2Relevant academic research and scientific papers
A Method for Separating N,N-Dialkylbisaminoalkylether from Mixtures Comprising N,N-Dialkylbisaminoalkylether and at least one of N,N,N'-Trialkylbisaminoalkylether and N,N,N',N'-Tetraalkylbisaminoalkylether
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Page/Page column 24-28, (2010/12/29)
According to the present invention, a method for separating a primary amine being an N,N- dialkylbisaminoalkylether, from mixtures comprising said primary amine and at least one of a secondary amine being an N,N,N'-trialkylbisaminoalkylether and a tertiary amine being an N,N,N',N'-tetraalkylbisaminoalkylether, comprising the steps: (α) joining said mixture and at least one of a ketone and an aldehyde for reacting said primary amine with said at least one of a ketone and an aldehyde, thereby providing a primary amine based imine by a Schiff base reaction; (β) separating the primary amine based imine from said at least one of the secondary or tertiary amine; and (γ) recovering the primary amine from its primary amine based imine by hydrolysis of the primary amine based imine.
A METHOD FOR PROVIDING A SECONDARY OR TERTIARY AMINE
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Page/Page column 17-23, (2010/12/29)
A method for providing a secondary or tertiary amine with formula (R1R2NR3)2NR4 is provided, wherein each of R1 and R2 are chosen from the group consisting of a methyl group, an ethyl group, an iso-propyl group and an n-propyl group; R3 being an alkoxyalkyl group chosen from the group consisting of -CH2CH2OCH2CH2-, -CH2CH2OCH2CH2CH2- and -CH2CH2CH2OCH2CH2CH2-; R4 is chosen from the group consisting of a hydrogen, a methyl group, an ethyl group, an iso-propyl group, an n-propyl group and a group with formula R1R2NR3. The method comprises the steps: (α)reacting R1R2NR3(OH) with ammonia, thereby providing a mixture comprising (R1R2NR3)2NR4; (β) separating (R1R2NR3)2NR4 from said mixture.
