7483-59-2Relevant articles and documents
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Braun,Krauth
, p. 113,127 (1978)
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METHOD FOR PRODUCING HYDROXYALKYLTRIETHYLENEDIAMINE HAVING IMPROVED HUE
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Paragraph 0046; 0047, (2017/12/12)
PROBLEM TO BE SOLVED: To provide a production method which makes it possible to improve the hue of a cyclic alkanolamine such as a hydroxyalkyltriethylenediamine and efficiently obtain a high-purity bicyclic compound. SOLUTION: A method for producing the bicyclic diamine includes bringing a crude hydroxyalkyltriethylenediamine reaction liquid comprising a hydroxyalkyltriethylenediamine represented by formula (1) into contact with oxygen at 110-170°C and then distilling and purifying it (R1-R10 independently represent H, a C1-4 alkyl group or a C1-4 hydroxyalkyl group). SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
METHOD FOR PRODUCING N-MONOSUBSTITUTED PIPERAZINE
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Paragraph 0067; 0078, (2017/04/20)
PROBLEM TO BE SOLVED: To provide a method for producing N-monosubstituted piperazine selectively with high productivity and high yields. SOLUTION: An electrophilic reagent and an alkali source are added to a solution comprising piperazine, which has been heated at 70-90°C, to make a reaction occur therebetween, so that an addition ratio of the electrophilic reagent to the piperazine is 0.2-0.7 mole and an addition amount rate of the electrophilic reagent exceeds an addition amount rate of the alkali source. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT