MX9801569A - Procedimiento para preparar ester de acido glicidico trans-3-substituido opticamente activo. - Google Patents
Procedimiento para preparar ester de acido glicidico trans-3-substituido opticamente activo.Info
- Publication number
- MX9801569A MX9801569A MX9801569A MX9801569A MX9801569A MX 9801569 A MX9801569 A MX 9801569A MX 9801569 A MX9801569 A MX 9801569A MX 9801569 A MX9801569 A MX 9801569A MX 9801569 A MX9801569 A MX 9801569A
- Authority
- MX
- Mexico
- Prior art keywords
- optical isomer
- isomer
- ester compound
- optically active
- optical
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/32—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D281/00—Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one sulfur atom as the only ring hetero atoms
- C07D281/02—Seven-membered rings
- C07D281/04—Seven-membered rings having the hetero atoms in positions 1 and 4
- C07D281/08—Seven-membered rings having the hetero atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
- C07D281/10—Seven-membered rings having the hetero atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems condensed with one six-membered ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/48—Compounds containing oxirane rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
- Epoxy Compounds (AREA)
Abstract
Un procedimiento para preparar un compuesto de éster de ácido glicídico trans-3-substituido de la formula (1): (Ver Formula) caracterizado porque el anillo A es un anillo de benceno substituido o no substituido, y R1 es un residuo de éster, que comprende: preparar una solucion de un isomero optico (A) y el otro isomero optico (B) del compuesto de éster (I), los cuales son isomeros opticos debido a los carbonos asimétricos en las posiciones 2- y 3-, y un compuesto de éster (B') que es diferente al isomero (B) solo en el residuo de éster R1, cristalizar el isomero optico (A) a partir de la solucion al grado que el isomero optico (A) se cristaliza sin la precipitacion del isomero optico (B) debido a la presencia del compuesto de éster (B') aunque el isomero optico (B) se precipitaría si el compuesto deéster (B') no estuviera presente, y aislar los cristales del isomero optico (A), por medio de lo cual puede obtenerse un isomero optico (A) deseado con pureza alta y con rendimiento alto, de manera que el isomero deseado se puede cristalizar hasta que la concentracion del isomero deseado en la solucion madre sea muy baja en comparacion con procedimientos convencionales.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP43378/1997 | 1997-02-27 | ||
| JP4337897 | 1997-02-27 | ||
| JP9-43378 | 1997-02-27 | ||
| JP8-341668 | 1997-12-11 | ||
| JP341668/1997 | 1997-12-11 | ||
| JP34166897 | 1997-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9801569A true MX9801569A (es) | 1998-12-31 |
| MXPA98001569A MXPA98001569A (es) | 1999-02-01 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| US6197953B1 (en) | 2001-03-06 |
| ID19935A (id) | 1998-08-27 |
| IL123352A0 (en) | 1998-09-24 |
| BR9800777A (pt) | 2000-03-14 |
| CN1199733A (zh) | 1998-11-25 |
| US5998637A (en) | 1999-12-07 |
| EP0861834A1 (en) | 1998-09-02 |
| SG64474A1 (en) | 1999-04-27 |
| IN183970B (es) | 2000-05-27 |
| TW438787B (en) | 2001-06-07 |
| AU5542198A (en) | 1998-09-03 |
| KR19980071725A (ko) | 1998-10-26 |
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