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- W2059195941 abstract "The amination of 1,6-hexanediol by dimethylamine on alumina supported copper has been studied in a continuous fixed-bed reactor at atmospheric pressure. Main reaction products were N,N-dimethyl-6-amino-1-hexanol (aminol) and 1,6-bis(N,N-dimethylamino)-hexane (diamine). The selectivity to aminol exhibited a maximum of > 90% at 180°C, with the selectivity to diamine being very low at this temperature. The diamine selectivity exhibited a continuous increase in the temperature range from 165°C to 230°C up to a value of 65 mol%. The dependence of main product selectivities on temperature and space time confirmed that the diamine was formed by a consecutive second amination step from the aminol. An increase in the dimethylamine: 1,6-hexanediol reactant ratio favored the diamine product relative to the aminol, while conversion was not influenced significantly." @default.
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- W2059195941 date "1987-03-01" @default.
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- W2059195941 title "Copper catalyzed amination of 1,6-hexanediol" @default.
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- W2059195941 doi "https://doi.org/10.1016/s0166-9834(00)81021-0" @default.
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