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Dow Chemical Co
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Dow Chemical Co
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Priority to ES409309ApriorityCriticalpatent/ES409309A1/en
Publication of ES409309A1publicationCriticalpatent/ES409309A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A method for preparing substituted alkanolamine compounds having the formula ** (see formula) ** Wherein n is 0 to 5, a is an alcohol radical of 2 to 3 carbon atoms, and each r is a carboxymethyl radical, a 2-hydroxy-3-sulfopropyl radical, or a radical a-oh, and at least one of the r is a 2-hydroxy-3-sulfopropyl radical, the method comprising reacting a polyamine having the formula ** (see formula) ** Wherein a and n are as identified above, with 3-chloro-2-hydroxy-propanesulfonic acid or a salt thereof or with a 2,3-epoxypropanesulfonate, in the presence of excess alkali, to form an adduct; then reacting said adduct with sodium cyanide and formaldehyde or with glycolonitrile and an alkali metal hydroxide; and then hydrolyze the reaction mixture. (Machine-translation by Google Translate, not legally binding)
ES409309A1972-12-051972-12-05A method for preparing substitute alcanolamine compounds. (Machine-translation by Google Translate, not legally binding)
ExpiredES409309A1
(en)
Procedure for the preparation of n (dietillaminoetil) - 2 - metoxi - 5 - metilsulfonil - benzamida. (Machine-translation by Google Translate, not legally binding)