WO2000031010A2 - Verfahren zur herstellung chiraler aldehyde - Google Patents
Verfahren zur herstellung chiraler aldehyde Download PDFInfo
- Publication number
- WO2000031010A2 WO2000031010A2 PCT/EP1999/008661 EP9908661W WO0031010A2 WO 2000031010 A2 WO2000031010 A2 WO 2000031010A2 EP 9908661 W EP9908661 W EP 9908661W WO 0031010 A2 WO0031010 A2 WO 0031010A2
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- WO
- WIPO (PCT)
- Prior art keywords
- bar
- reaction
- chiral
- carbon dioxide
- carried out
- Prior art date
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Classifications
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- 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
- C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
- C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
- C07C45/505—Asymmetric hydroformylation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Definitions
- the present invention relates to processes for the preparation of chiral aldehydes by enantioselective hydroformylation of prochiral substrates with the aid of a catalyst consisting of a transition metal and a chiral phosphorus-containing ligand which contains aromatic rings which are substituted by perfluoroalkyl groups.
- Chiral aldehydes also provide access to ⁇ -amino acids, polyether-based antibiotics and macrocyclic antitumor agents.
- the most efficient catalyst system for enantioselective hydroformylation to date is based on a rhodium catalyst which contains the ligand (R) - 2- (diphenylphosphino) - 1, 1 '-binaphtol-2'-yl (S) - 1, 1' -binaphtol-2, 2'-diyl phosphite (R, S) -Binaphos (Topics in Catalysis 1997, 4, 175; EP 0 614 870 A3) and related ligands (EP 0 684 249 AI, EP 0 647 647 AI).
- the main disadvantages of the processes based on this catalyst system are, on the one hand, the limited regioselectivity for the formation of the desired branched isomer in the hydroformylation of vinyl aromatics (see Scheme 1).
- the regioselectivity with (R, S) -binaphos is, for example, 88%, and the 12% linear aldehyde is a worthless by-product which has to be separated and disposed of in a complex manner.
- these catalyst systems only work with the greatest efficiency if toxicologically and ecologically questionable solvents, such as. B. benzene can be used.
- Scheme 1 Reaction scheme for enantioselective hydroformylation using the example of vinyl aromatics. Table 1. Synthesis of chiral aldehydes by enantioselective hydroformylation.
- Compressed carbon dioxide in the liquid (liqC02) or supercritical state (SCCO2) is an interesting solvent for the implementation of catalytic reactions, because unlike conventional organic solvents it is toxicologically and ecologically harmless.
- the ligand (R, S) -binaphos cannot be used efficiently in compressed carbon dioxide, since the enantioselectivity drops drastically in the presence of compressed carbon dioxide (S. Kainz, W. Leitner, Catal. Lett., In press).
- the chiral ligand is a compound of the general formula 1
- the synthesis route for such a ligand is shown using the example of the ligand (R, S) -la (Scheme 2).
- the catalysts for the enantioselective hydroformylation can either be used in the form of isolated complex compounds which already contain the chiral ligands of the formula 1, or they are formed in situ from a ligand of the formula 1 and suitable metal-containing precursors.
- suitable metal-containing precursors A detailed description of possible catalyst systems can be found, for example, in Chem. Rev. 1995, 95, 2485.
- Compounds or salts of transition metals can be used as metal components in the present process. Catalysts based on the metals Fe, Co, Ir, Ru, Pt, Rh, particularly preferably Pt and Rh are preferred.
- the optimal molar ligand / metal ratio depends on the particular system, but should generally be between 1: 1 and 10: 1, preferably between 1: 1 and 4: 1 lie.
- Examples of such compounds can be found in the following group, without the choice of the compounds implying a limitation in the range of use: vinylaromatics (e.g. styrene and substituted styrene derivatives such as chlorobenzene, para- (isobutyl) sytrol or vinylnaphtol and its derivatives) , Vinylpyridine, acrylic acid and its derivatives (e.g.
- ⁇ -acetamidoacrylic acid esters vinyl acetate, vinyl phthalates, allyl acetate, indene, dihydro-2-pyridones, norbornene etc.
- the complete solubility of the substrates and the products during the entire reaction time is not necessary when carried out in compressed CO2 Prerequisite for an effective reaction process.
- the molar ratio of substrate to catalyst is mainly determined by economic considerations and represents one Compromise of catalyst costs and practically acceptable reaction rate. The optimal value can therefore vary widely depending on the substrate and catalyst. With the catalyst la / Rh substrate / catalyst ratios between 100: 1 and 100000: 1 are possible, preferably a ratio between 500: 1 and 10000: 1 is used.
- the gases H2 and CO can either be added separately or as a mixture to the reactor.
- the partial print /? the individual gases are in the range between 1 and 100 bar, preferably in the range between 5 and 50 bar.
- the reaction gases can be introduced before, after, or together with the CO2.
- the amount of CO2 is chosen so that the total pressure at the reaction temperature,? ° g e s. > In the range between 20 and 500 bar, preferably in the range between 50 and 350 bar.
- the reaction temperature can be varied within a wide range and is between -20 ° C and 100 ° C, preferably between 20 ° C and 60 ° C.
- Preferred solvents are, for example, pentane, hexane, toluene, benzene, diethyl ether, tetrahydrofuran, chloroform, methylene chloride, perfluorinated hydrocarbons or pefluorinated polyethers.
- the product When carried out in compressed carbon dioxide, the product can pass through the catalyst as described in DE 197 02 025 after the reaction Extraction are separated with CO2, the catalyst remaining in the reactor in active and selective form.
- the combination of reaction and extraction can be realized in batch, semi-batch or in continuous processes.
- CO2 (approx. 5-8 g) was filled in with a compressor and heated to the desired reaction temperature T, a pressure p ° ⁇ being established. After the reaction time t, the reactor was cooled to 0 ° C. and slowly let down. To isolate the reaction products, the contents of the reactor were either extracted using SCCO2 or the contents of the reactor were taken up in hexane or toluene, filtered through a little silica gel and the solvent was removed by distillation or in vacuo.
- Sales, regioselectivity in favor of Branched aldehyde and enantiomeric excess (ee) were determined by gas chromatography (HP 5890 with FID, column: Ivadex 7, injector temp .: 240 ° C, column temp .: 60-200 ° C; detector temp .: 300 ° C, carrier gas: H2).
- Enantioselective hydroformylation in other solvents (Ex. 1-2): The desired amount was added to a mixture of [ ⁇ (R, S) -la ⁇ Rh (acac)], (R, S) -la and styrene prepared as described above Given solvent. Synthesis gas was then injected to the pressure p m _ co and the solution was heated to the desired reaction temperature T while stirring. After the reaction time t, the reactor was cooled and let down. The reaction solutions were filtered through a little silica gel and the solvent removed in vacuo or by distillation. The analysis was carried out as described above.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002351397A CA2351397A1 (en) | 1998-11-21 | 1999-11-11 | Methods for producing chiral aldehydes |
US09/831,925 US6399834B1 (en) | 1998-11-21 | 1999-11-11 | Methods for producing chiral aldehydes |
EP99968786A EP1131274A2 (de) | 1998-11-21 | 1999-11-11 | Verfahren zur herstellung chiraler aldehyde |
JP2000583839A JP2002530360A (ja) | 1998-11-21 | 1999-11-11 | キラルアルデヒドの製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853748.4 | 1998-11-21 | ||
DE19853748A DE19853748A1 (de) | 1998-11-21 | 1998-11-21 | Verfahren zur Herstellungh chiraler Aldehyde |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000031010A2 true WO2000031010A2 (de) | 2000-06-02 |
WO2000031010A3 WO2000031010A3 (de) | 2000-11-02 |
Family
ID=7888553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/008661 WO2000031010A2 (de) | 1998-11-21 | 1999-11-11 | Verfahren zur herstellung chiraler aldehyde |
Country Status (6)
Country | Link |
---|---|
US (1) | US6399834B1 (de) |
EP (1) | EP1131274A2 (de) |
JP (1) | JP2002530360A (de) |
CA (1) | CA2351397A1 (de) |
DE (1) | DE19853748A1 (de) |
WO (1) | WO2000031010A2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10049228A1 (de) * | 2000-09-28 | 2002-04-11 | Studiengesellschaft Kohle Mbh | Verfahren zur Trennung verzweigter und linearer Aldenyde durch selektive Extraktion mit komprimiertem Kohlendioxid |
DE10355066A1 (de) * | 2003-11-25 | 2005-06-23 | Basf Ag | Verfahren zur asymmetrischen Synthese |
DE102014209532A1 (de) * | 2014-05-20 | 2015-11-26 | Evonik Degussa Gmbh | Neue Monophosphitliganden mit einer tert-Butyloxycarbonyl-Gruppe |
WO2015176927A1 (de) * | 2014-05-20 | 2015-11-26 | Evonik Degussa Gmbh | Verfahren zur reduzierung des chlorgehalts von organomonophosphiten unter verwendung von zwei lösungen |
DE102014209534A1 (de) * | 2014-05-20 | 2015-11-26 | Evonik Degussa Gmbh | Neue Monophosphitliganden mit einer Carbonat-Gruppe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0614903A2 (de) * | 1993-03-12 | 1994-09-14 | Takasago International Corporation | Phosphin-Verbindungen, diese Phosphin-Verbindungen als ligande enthaltende Komplexe, Verfahren zur Herstellung von optisch-aktiven Aldehyden durch Mittel der Phosphin-Verbindungen oder des Komplexes, und 4-(R/-1'-formylethyl Azetidin-2-One Derivate |
WO1998032533A1 (de) * | 1997-01-23 | 1998-07-30 | Studiengesellschaft Kohle Mbh | Verwendung perfluoralkylsubstituierter phosphorverbindungen als liganden für die homogene katalyse in überkritischem kohlendioxid |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5530150A (en) * | 1993-03-12 | 1996-06-25 | Takasago International Corporation | Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives |
-
1998
- 1998-11-21 DE DE19853748A patent/DE19853748A1/de not_active Withdrawn
-
1999
- 1999-11-11 JP JP2000583839A patent/JP2002530360A/ja active Pending
- 1999-11-11 US US09/831,925 patent/US6399834B1/en not_active Expired - Fee Related
- 1999-11-11 WO PCT/EP1999/008661 patent/WO2000031010A2/de not_active Application Discontinuation
- 1999-11-11 CA CA002351397A patent/CA2351397A1/en not_active Abandoned
- 1999-11-11 EP EP99968786A patent/EP1131274A2/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0614903A2 (de) * | 1993-03-12 | 1994-09-14 | Takasago International Corporation | Phosphin-Verbindungen, diese Phosphin-Verbindungen als ligande enthaltende Komplexe, Verfahren zur Herstellung von optisch-aktiven Aldehyden durch Mittel der Phosphin-Verbindungen oder des Komplexes, und 4-(R/-1'-formylethyl Azetidin-2-One Derivate |
WO1998032533A1 (de) * | 1997-01-23 | 1998-07-30 | Studiengesellschaft Kohle Mbh | Verwendung perfluoralkylsubstituierter phosphorverbindungen als liganden für die homogene katalyse in überkritischem kohlendioxid |
Non-Patent Citations (2)
Title |
---|
FRANCIO G ET AL: "Highly regio- and enantio-selective rhodium-catalyzed asymmetric hydroformylation without organic solvents" CHEM. COMMUN. (CAMBRIDGE) (CHCOFS,13597345);1999; (17); PP.1663-1664, XP002144128 Max-Planck-Institut fur Kohlenforschung;Mulheim an der Ruhr; D-45470; Germany (DE) * |
KAINZ S ET AL: "Catalytic asymmetric hydroformylation in the presence of compressed carbon dioxide" CATAL. LETT. (CALEER,1011372X);1998; VOL.55 (3,4); PP.223-225, XP002144127 Max-Planck-Institut fur Kohlenforschung;Mulheim an der Ruhr; 45470; Germany (DE) * |
Also Published As
Publication number | Publication date |
---|---|
CA2351397A1 (en) | 2000-06-02 |
WO2000031010A3 (de) | 2000-11-02 |
EP1131274A2 (de) | 2001-09-12 |
DE19853748A1 (de) | 2000-05-25 |
JP2002530360A (ja) | 2002-09-17 |
US6399834B1 (en) | 2002-06-04 |
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