发明名称 |
METHOD FOR THE PREPARATION OF A N-ALKOXY-(TETRA- OR HEXAHYDRO)-PHTHALIMIDE AND METHOD FOR THE PREPARATION OF A N-ALKOXYAMINE |
摘要 |
<p>Method for the preparation of N-alkoxy-(tetra-or hexahydro)-phthalimide according to formula (I), R1 being methyl or ethyl and R2 and R3 being each independently of one another hydrogen or alkyl with 1-4C atoms of R2 and R3 together with the carbon atom to which they are bonded forming a ring with 5 or 6 C atoms, wherein the salt of the corresponding N-hydroxy-(tetrahydro- or hexahydro)-phthalimide according to formula II; with R2 and R3 as defined and M being an alkali metal, is brought into contact with R1Cl as alkylating agent, wherein R1 has the mentioned meaning. The N-alkoxy-(tetra- or hexahydro)-phthalimide can afterwards be converted with the aid of hydroxylamine sulphate into the corresponding alkoxyamine after which the alkoxyamine obtained can be isolated. In this manner a simple and commercially attractive process for the preparation of O-(m)ethylhydroxylamine can be implemented.</p> |
申请公布号 |
EP0815079(B1) |
申请公布日期 |
2002.01.02 |
申请号 |
EP19960905074 |
申请日期 |
1996.03.19 |
申请人 |
DSM N.V. |
发明人 |
MULDERS, JOANNES, MARIA, CORNELIS, ANTONIUS;CALLANT, DOMINIQUE, MONIQUE, CHARLES;CASTELIJNS, ANNA, MARIA, CORNELIA, FRANCISCA |
分类号 |
C07D209/48;(IPC1-7):C07D209/48 |
主分类号 |
C07D209/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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