2212-32-0Relevant articles and documents
Preparation method of N, N, N'-trimethyl-N'-ethoxyl-ethanediamine
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Paragraph 0040-0064, (2017/07/19)
The invention discloses a preparation method of N, N, N'-trimethyl-N'-ethoxyl-ethanediamine. The preparation method comprises the following steps: adding hydroxyethyl ethylenediamine and paraformaldehyde to a vessel, and dropwise adding formic acid in stirring, wherein the molar ratio of hydroxyethyl ethylenediamine to paraformaldehyde to formic acid is 1: (3-3.3): (3-3.3), and the reaction is carried out for 1 to 2 hours at the temperature of 50 to 110 DEG C; performing pressure-reduction steaming to obtain water generated in the reaction after the reaction is finished, so as to obtain reacting liquid; adding alcohols substances to the obtained reacting liquid to perform an ester exchange reaction so as to obtain purified reacting liquid; and performing pressure-reduction distilling on the obtained reacting liquid so as to separate out the alcohols substance and N, N, N'-trimethyl-N'-ethoxyl-ethanediamine, wherein the alcohols substances are recycled.
2,3,4,5-TETRAHYDRO-1H-1,5-BENZODIAZEPINE DERIVATIVE AND MEDICINAL COMPOSITION
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, (2008/06/13)
The present invention has its object to provide a 2,3,4,5-tetrahydro-1H-1,5-benzodiazepine derivative represented with the Formula (1) , or the pharmaceutically acceptable salt, which is effective as a therapeutic and prophylactic agent for diabetes, diabetic nephropathy, or glomerulosclerosis.
Process for converting heat stable amine salts to heat regenerable amine salts
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, (2008/06/13)
Processes are disclosed for converting heat stable amine salts to heat regenerable amine salts using a modified electrodialysis zone (140). The processes of the present invention can be used to reduce the level of heat stable salts in a lean solvent stream in an acid gas removal process and can be integrated with the acid gas removal process to utilize process streams as a source of ions.