IMPROVED PROCESS FOR PRODUCING 4-HYDROXY-2-PYRROLIDONE
An improved process for producing 4-hydroxy-2-pyrrolidone represented by formula (1), which is useful as an intermediate for synthesizing medicines, agricultural chemicals and so forth, by synthesizing a 4-azido-3-hydroxybutanoic ester by the reaction of a 4-halogeno-3-hydroxybutanoic ester with an...
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Main Authors | , , |
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Format | Patent |
Language | English French Japanese |
Published |
21.11.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Abstract | An improved process for producing 4-hydroxy-2-pyrrolidone represented by formula (1), which is useful as an intermediate for synthesizing medicines, agricultural chemicals and so forth, by synthesizing a 4-azido-3-hydroxybutanoic ester by the reaction of a 4-halogeno-3-hydroxybutanoic ester with an alkali metal or alkaline earth metal azide followed by the catalytic reduction of the azido group of the ester and cyclization.
L'invention concerne un procédé amélioré pour préparer la 4-hydroxy-2-pyrrolidone représentée par la formule (1), qui est utile comme intermédiaire pour synthétiser des médicaments, des composés utiles en agriculture, etc. Ce procédé consiste à synthétiser un ester de l'acide 4-azido-3-hydroxybutyrique par la réaction d'un ester d'un acide 4-halogéno-3-hydroxybutyrique avec un azoture de métal alcalin ou alcalino-terreux, suivie par la réduction catalytique du groupe azido de l'ester et cyclisation pour obtenir le composé (1). |
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AbstractList | An improved process for producing 4-hydroxy-2-pyrrolidone represented by formula (1), which is useful as an intermediate for synthesizing medicines, agricultural chemicals and so forth, by synthesizing a 4-azido-3-hydroxybutanoic ester by the reaction of a 4-halogeno-3-hydroxybutanoic ester with an alkali metal or alkaline earth metal azide followed by the catalytic reduction of the azido group of the ester and cyclization.
L'invention concerne un procédé amélioré pour préparer la 4-hydroxy-2-pyrrolidone représentée par la formule (1), qui est utile comme intermédiaire pour synthétiser des médicaments, des composés utiles en agriculture, etc. Ce procédé consiste à synthétiser un ester de l'acide 4-azido-3-hydroxybutyrique par la réaction d'un ester d'un acide 4-halogéno-3-hydroxybutyrique avec un azoture de métal alcalin ou alcalino-terreux, suivie par la réduction catalytique du groupe azido de l'ester et cyclisation pour obtenir le composé (1). |
Author | NAGAO, KENICHI FURUKAWA, YOSHIRO SHIOMI, YUTAKA |
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DocumentTitleAlternate | PROCEDE AMELIORE POUR PREPARER LA 4-HYDROXY-2-PYRROLIDONE |
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RelatedCompanies | DAISO CO., LTD NAGAO, KENICHI FURUKAWA, YOSHIRO SHIOMI, YUTAKA |
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Snippet | An improved process for producing 4-hydroxy-2-pyrrolidone represented by formula (1), which is useful as an intermediate for synthesizing medicines,... |
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Title | IMPROVED PROCESS FOR PRODUCING 4-HYDROXY-2-PYRROLIDONE |
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