Schotten-Baumann Reaction of N, N-Disubstituted Aminoalcohols

禧一, 大城; 強, 尾形; 弘, 吉田; 三郎, 猪川

doi:10.1246/nikkashi1948.89.2_211

Cited by 2 publications

(2 citation statements)

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“…In some cases primary or secondary amines are used (3), and the amine is also ethoxylated. However, tertiary amines generally are used as catalysts (4,5,6,7).…”

Section: Introductionmentioning

confidence: 99%

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Catalytic effect of amines on the ethoxylation of dodecyl alcohol

Sallay

Morgós

Farkas

et al. 1985

J Americ Oil Chem Soc

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The catalytic activity of several tertiary amines on the ethoxylation of dodecyl alcohol has been investigated. It has been established that the rate of the reaction is proportional to the concentration of the catalyst over the range of 10-25% and that the reaction rate has an extremum at 80 C.The catalytic effect of trialkyl amines increases if two of the alkyl groups are methyl. The product distribution is that of the Weibull-Nycander-Gold type and is independent of the concentration of the catalyst and reaction temperature. Distribution constants calculated according to Natta-Mantica vary with the average degree of ethoxylation, Le., the Weibull-Tornquist effect is observed. This can be explained if an interaction is assumed between the polyethylene glycol chain formed and the quaternary ammonium ion formed in the first step of ethoxylatlon.

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“…In some cases primary or secondary amines are used (3), and the amine is also ethoxylated. However, tertiary amines generally are used as catalysts (4,5,6,7).…”

Section: Introductionmentioning

confidence: 99%

“…The effect of hydroxy groups of the substrate and product on the oxygen of ethylene oxide also should be taken into account (4,8), because increased temperature does not favor the reaction (4). 2 There is little information available on the distribution of products formed in the amine catalyzed reactions.…”

Section: Introductionmentioning

confidence: 99%

Catalytic effect of amines on the ethoxylation of dodecyl alcohol

Sallay

Morgós

Farkas

et al. 1985

J Americ Oil Chem Soc

View full text Add to dashboard Cite

show abstract