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Oxyethylation and oxypropylation of alcohols of low relative molecular mass in the presence of amine‐type catalysts
Author(s) -
Poskrobko H,
Poskrobko J,
Hreczuch W,
Sobczyńska A,
Szymanowski J
Publication year - 2000
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/1097-4660(200007)75:7<547::aid-jctb250>3.0.co;2-n
Subject(s) - triethylamine , catalysis , amine gas treating , chemistry , methanol , reactivity (psychology) , selectivity , alcohol , ethanol , butanol , oxide , organic chemistry , molecular mass , tertiary amine , medicine , alternative medicine , pathology , enzyme
The effect of an amine catalyst on oxyalkyalation of alcohols of low relative molecular mass was studied. The reactivity and selectivity of the formation of the first homologues depend upon the alcohol, the alkylene oxide and the degree of oxyalkylation and decrease in the following order methanol > ethanol > butanol > 2‐methylpropanol. The formation of the first homologue is significantly more selective in oxypropylation in comparison to oxyethylation. Triethylamine used as the catalyst undergoes by‐reactions giving N,N ‐diethylethanolamine and then oxyethylated diethylamines which exhibit catalytic activity. © 2000 Society of Chemical Industry