ES8602581A1 - Un procedimiento para la preparacion de 2-cloro-3-trifluorme-tilbenzaldehido - Google Patents
Un procedimiento para la preparacion de 2-cloro-3-trifluorme-tilbenzaldehidoInfo
- Publication number
- ES8602581A1 ES8602581A1 ES537782A ES537782A ES8602581A1 ES 8602581 A1 ES8602581 A1 ES 8602581A1 ES 537782 A ES537782 A ES 537782A ES 537782 A ES537782 A ES 537782A ES 8602581 A1 ES8602581 A1 ES 8602581A1
- Authority
- ES
- Spain
- Prior art keywords
- pref
- reacted
- preparation
- benzaldehyde derivative
- lithium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/52—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings
- C07C47/55—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/80—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
Abstract
PROCEDIMIENTO PARA LA PREPARACION DE 2-CLORO-3-TRIFLUORMETILBENZALDEHIDO. COMPRENDE LAS SIGUIENTES ETAPAS: PRIMERA, SE HACE REACCIONAR 2-CLORO-1-TRIFLUORMETILBENCENO CON UN (ALQUIL C1-4)-LITIO O FENIL-LITIO, EFECTUANDOSE DICHA REACCION EN UN DISOLVENTE ORGANICO A -60 GRADOS; SEGUNDA, SE HACE REACCIONAR EL PRODUCTO OBTENIDO EN LA ETAPA ANTERIOR CON N,N-DIMETIL-FORMAMIDA A -60 GRADOS; Y POR ULTIMO, EL PRODUCTO OBTENIDO EN LA SEGUNDA ETAPA SE HACE REACCIONAR CON AGUA. DE APLICACION COMO UN COMPUESTO INTERMEDIO UTIL EN LA PREPARACION DE CIERTOS PRODUCTOS FARMACEUTICOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838331120A GB8331120D0 (en) | 1983-11-22 | 1983-11-22 | Benzaldehyde derivatives |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8602581A1 true ES8602581A1 (es) | 1985-12-01 |
ES537782A0 ES537782A0 (es) | 1985-12-01 |
Family
ID=10552149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES537782A Granted ES537782A0 (es) | 1983-11-22 | 1984-11-20 | Un procedimiento para la preparacion de 2-cloro-3-trifluorme-tilbenzaldehido |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0145334A3 (es) |
JP (1) | JPS60123438A (es) |
KR (1) | KR870001315B1 (es) |
DK (1) | DK552284A (es) |
ES (1) | ES537782A0 (es) |
FI (1) | FI844572L (es) |
GB (1) | GB8331120D0 (es) |
GR (1) | GR80985B (es) |
HU (1) | HUT37113A (es) |
IL (1) | IL73566A0 (es) |
PL (1) | PL250463A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0125803A3 (en) * | 1983-04-27 | 1987-01-21 | FISONS plc | Pharmaceutically active dihydropyridines |
DE3915495A1 (de) * | 1989-05-12 | 1990-11-15 | Bayer Ag | Kernfluorierte trifluormethylbenzaldehyde |
GB9201275D0 (en) * | 1992-01-21 | 1992-03-11 | Norsk Hydro As | New compounds |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2180772A (en) * | 1935-10-25 | 1939-11-21 | Gen Aniline Works Inc | Trifluoromethyl benzaldehydes |
GB1080167A (en) * | 1963-06-14 | 1967-08-23 | Smith Kline French Lab | Improvements in or relating to the production of halogenated benzene derivatives |
PL140069B1 (en) * | 1982-12-21 | 1987-03-31 | Pfizer | Method of obtaining new derivatives of dihydropiridine |
-
1983
- 1983-11-22 GB GB838331120A patent/GB8331120D0/en active Pending
-
1984
- 1984-11-02 JP JP59232270A patent/JPS60123438A/ja active Pending
- 1984-11-16 PL PL25046384A patent/PL250463A1/xx unknown
- 1984-11-16 EP EP84307953A patent/EP0145334A3/en not_active Withdrawn
- 1984-11-20 GR GR80985A patent/GR80985B/el unknown
- 1984-11-20 ES ES537782A patent/ES537782A0/es active Granted
- 1984-11-20 IL IL73566A patent/IL73566A0/xx unknown
- 1984-11-20 KR KR1019840007266A patent/KR870001315B1/ko active IP Right Grant
- 1984-11-21 DK DK552284A patent/DK552284A/da not_active Application Discontinuation
- 1984-11-21 FI FI844572A patent/FI844572L/fi not_active Application Discontinuation
- 1984-11-21 HU HU844327A patent/HUT37113A/hu unknown
Also Published As
Publication number | Publication date |
---|---|
GR80985B (en) | 1985-03-19 |
KR870001315B1 (ko) | 1987-07-13 |
FI844572L (fi) | 1985-05-23 |
JPS60123438A (ja) | 1985-07-02 |
PL250463A1 (en) | 1985-06-18 |
DK552284A (da) | 1985-05-23 |
DK552284D0 (da) | 1984-11-21 |
EP0145334A3 (en) | 1985-07-10 |
EP0145334A2 (en) | 1985-06-19 |
FI844572A0 (fi) | 1984-11-21 |
KR850004090A (ko) | 1985-07-01 |
HUT37113A (en) | 1985-11-28 |
ES537782A0 (es) | 1985-12-01 |
GB8331120D0 (en) | 1983-12-29 |
IL73566A0 (en) | 1985-02-28 |
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