Fremgangsmate ved rensing av et aminalkohol

The present invention relates to a process for the preparation of 2-amino-1,3-propanediol, having a content of organic impurities lower than 0.1% and inorganic impurities lower than 0.05%, comprising the following steps: a) formation of a 2-amino-1,3-propanediol salt with an acid; b) crystallization...

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Hauptverfasser:	FEDELI FRANCO, DESANTIS NICOLA
Format:	Patent
Sprache:	nor
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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creator	FEDELI FRANCO DESANTIS NICOLA
description	The present invention relates to a process for the preparation of 2-amino-1,3-propanediol, having a content of organic impurities lower than 0.1% and inorganic impurities lower than 0.05%, comprising the following steps: a) formation of a 2-amino-1,3-propanediol salt with an acid; b) crystallization of the salt resulting from step a) from an aqueous or a hydro-organic mixture with a solvent selected from the group consisting of an alcohol of general formula R-OH, wherein R is a C1-C6 straight or branched alkyl chain, and a mono(C1-C3)alkylether of the (C3-C7)alkylcellosolve group; c) elution of the free base by using ion exchangers to give an aqueous solution of said base; d) precipitation or crystallization of the solid 2-amino-1,3-propanediol from a solvent as defined in step b).
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b) crystallization of the salt resulting from step a) from an aqueous or a hydro-organic mixture with a solvent selected from the group consisting of an alcohol of general formula R-OH, wherein R is a C1-C6 straight or branched alkyl chain, and a mono(C1-C3)alkylether of the (C3-C7)alkylcellosolve group; c) elution of the free base by using ion exchangers to give an aqueous solution of said base; d) precipitation or crystallization of the solid 2-amino-1,3-propanediol from a solvent as defined in step b).</description><edition>7</edition><language>nor</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</subject><creationdate>2005</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050124&DB=EPODOC&CC=NO&NR=318033B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050124&DB=EPODOC&CC=NO&NR=318033B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FEDELI FRANCO</creatorcontrib><creatorcontrib>DESANTIS NICOLA</creatorcontrib><title>Fremgangsmate ved rensing av et aminalkohol</title><description>The present invention relates to a process for the preparation of 2-amino-1,3-propanediol, having a content of organic impurities lower than 0.1% and inorganic impurities lower than 0.05%, comprising the following steps: a) formation of a 2-amino-1,3-propanediol salt with an acid; 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subjects	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
title	Fremgangsmate ved rensing av et aminalkohol
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