MX9800764A - Procedimiento continuo para la elaboracion de 4-aminopiperidinas. - Google Patents
Procedimiento continuo para la elaboracion de 4-aminopiperidinas.Info
- Publication number
- MX9800764A MX9800764A MX9800764A MX9800764A MX9800764A MX 9800764 A MX9800764 A MX 9800764A MX 9800764 A MX9800764 A MX 9800764A MX 9800764 A MX9800764 A MX 9800764A MX 9800764 A MX9800764 A MX 9800764A
- Authority
- MX
- Mexico
- Prior art keywords
- elaboration
- aminopiperidines
- degree
- continuous process
- reaction
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D211/56—Nitrogen atoms
- C07D211/58—Nitrogen atoms attached in position 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
La invencion se refiere a un procedimiento para la elaboracion de 4-aminopiperidinas N-monosustituidas mediante reaccion continua en una sola etapa, de una 4-oxopiperidina con una amina primaria e hidrogeno bajo condiciones de hidrogenacion con solvente o sin él. Los eductos pueden conducirse por encima de un catalizador portador fijamente montado que ventajosamente contiene a uno o varios metales del grupo secundario VIII de sistema periodico. La reaccion se lleva a cabo generalmente a una temperatura entre 80 degree C y 200 degree C. Los productos son sustancias de partida para la elaboracion de amina estéreamente obstaculizadas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19704460.3 | 1997-02-06 | ||
| DE19704460A DE19704460A1 (de) | 1997-02-06 | 1997-02-06 | Kontinuierliches Verfahren zur Herstellung von 4-Aminopiperidinen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9800764A true MX9800764A (es) | 1998-08-30 |
| MXPA98000764A MXPA98000764A (es) | 1998-11-12 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| DE59707046D1 (de) | 2002-05-23 |
| ES2173374T5 (es) | 2007-03-01 |
| SK283716B6 (sk) | 2003-12-02 |
| EP0857719B1 (de) | 2002-04-17 |
| EP0857719B2 (de) | 2006-07-26 |
| US5945536A (en) | 1999-08-31 |
| BR9800557A (pt) | 1999-06-29 |
| EP0857719A1 (de) | 1998-08-12 |
| DE19704460A1 (de) | 1998-08-13 |
| ES2173374T3 (es) | 2002-10-16 |
| JPH10218860A (ja) | 1998-08-18 |
| SK7598A3 (en) | 1998-09-09 |
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