ES227075A1 - A procedure for the obtaining of amino-piperidina-2.6-dionas. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the obtaining of amino-piperidina-2.6-dionas. (Machine-translation by Google Translate, not legally binding)
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Gruenenthal GmbH
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Gruenenthal GmbH
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Procedure for obtaining amino-piperidine-2,6-diones of the general formula ** (see formula) ** in which R represents hydrogen or an aliphatic radical containing 1 - 5 atoms C at least one X represents the radical of an imide of the dicarboxylic acid and the other X hydrogen or aliphatic radicals containing 1-5 C atoms characterized in that a combination of the following general formula ** (see formula) ** in which at least one X1 represents the radical of a dicarboxylic acid imide or a convertible substituent therein the other X1 represent hydrogen or aliphatic radicals containing 1-5 C atoms R1 hydrogen or an aliphatic radical containing 1-5 C atoms and R2 a radical reactable with the hydrogen atom of the NH group as hydroxyl or esterified hydroxyl a halogen atom or an amino group, optionally substituted, continuing heating until the ring is closed with separation of the combination H-R2 and then the substituent X1 becomes optionally the radical of the acid imide dicarboxylic. (Machine-translation by Google Translate, not legally binding)
ES227075A1956-03-031956-03-03A procedure for the obtaining of amino-piperidina-2.6-dionas. (Machine-translation by Google Translate, not legally binding)
ExpiredES227075A1
(en)
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