141656-32-8Relevant articles and documents
PROCESS FOR REGENERATING RANEY CATALYSTS
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Page/Page column, (2013/03/26)
A process for regenerating Raney catalysts by treating the catalyst with liquid ammonia with a water content of less than 5% by weight and with hydrogen having a partial pressure of 0.1 to 40 MPa in the temperature range from 50 to 350° C. for at least 0.1 hour.
PROCESS FOR WORKING UP REACTION OUTPUTS FROM THE HYDROGENATION OF EDDN OR EDMN
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Page/Page column, (2013/03/26)
A process is disclosed for separating the output from the reaction of EDDN or EDMN with hydrogen in the presence of THF, a catalyst, TETA or DETA, water, and optionally organic compounds having higher and lower boiling points than TETA or DETA. Hydrogen is removed, and the output is supplied to a distillation column DK1 in which an azeotrope, optionally comprising organic compounds with a boiling point lower than TETA or DETA, is removed from the top. A product comprising TETA or DETA is removed from the bottom and passed cinto a distillation column DK2, removing THF. A stream comprising TETA or DETA passes from the bottom of DK2. The DK1 azeotrope is condensed. Phase separation is induced by the addition of an organic solvent essentially immiscible with water, and the mixture is separated. The organic phase is recycled into DK1 and the water phase is discharged.
Tetramine treatment of neurological disorders
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, (2008/06/13)
2,3,2 Tetramine (3,7-diazanonane-1,9-diamine) is propounded for the treatment of Parkinson's Disease and dementias characterized by mitochondrial damage in view of this compound's ability to completely neutralize the dopainine-depriving effect of MPTP in laboratory animals up to 12 hours post MPTP injection, and to retain partial protection at suboptimal tissue levels for up to 36 hours. The effect of injecting combinations of MPTP and/or reducing agents and/or xenobiotics and/or depigmenting agents on Dopamine, Norepinephrine, Serotonin and Epinephrine levels demonstrated that MPTP and MPP+ act as reducing agents that mobilize copper and calcium, and sequester iron, and that the vulnerability of dopamine to these types of neurotoxins and to xenobiotics and metals can be corrected by administration of 2,3,2 tetramine that appears to redistribute metals between diverse storage pools and free metals in cytosol and regulate receptor mediated events, among other antidotal effects analogous to those of some of the endogenous polyamines.
Decolorization of polyalkylene polyamines
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, (2008/06/13)
A process for decolorizing polyalkylene polyamines, which comprises contacting one or more polyalkylene polyamines having an average molecular weight of greater than about 200 and less than about 1000 with carbon at a temperature greater than or equal to about 100° C. and less than or equal to about 300° C. under conditions effective to reduce the color rating of the one or more polyalkylene polyamines.
