EP1689761A2 - Di- et triphosphites chiraux - Google Patents

Di- et triphosphites chiraux

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Publication number
EP1689761A2
EP1689761A2 EP04802710A EP04802710A EP1689761A2 EP 1689761 A2 EP1689761 A2 EP 1689761A2 EP 04802710 A EP04802710 A EP 04802710A EP 04802710 A EP04802710 A EP 04802710A EP 1689761 A2 EP1689761 A2 EP 1689761A2
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EP
European Patent Office
Prior art keywords
alkyl
aryl
sulfonyl
compounds
chiral
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.)
Withdrawn
Application number
EP04802710A
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German (de)
English (en)
Inventor
Manfred Theodor Reetz
Andreas Meiswinkel
Gerlinde Mehler
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Studiengesellschaft Kohle gGmbH
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Studiengesellschaft Kohle gGmbH
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Publication of EP1689761A2 publication Critical patent/EP1689761A2/fr
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
    • C07F15/0073—Rhodium compounds
    • C07F15/008—Rhodium compounds without a metal-carbon linkage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
    • B01J31/185—Phosphites ((RO)3P), their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
    • B01J31/185—Phosphites ((RO)3P), their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof
    • B01J31/1855—Triamide derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
    • B01J31/185—Phosphites ((RO)3P), their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof
    • B01J31/186—Mono- or diamide derivatives thereof
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
    • C07F15/0073—Rhodium compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/657154—Cyclic esteramides of oxyacids of phosphorus
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/6574—Esters of oxyacids of phosphorus
    • C07F9/65746—Esters of oxyacids of phosphorus the molecule containing more than one cyclic phosphorus atom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
    • B01J2231/32—Addition reactions to C=C or C-C triple bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
    • B01J2231/32—Addition reactions to C=C or C-C triple bonds
    • B01J2231/321—Hydroformylation, metalformylation, carbonylation or hydroaminomethylation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/60—Reduction reactions, e.g. hydrogenation
    • B01J2231/64—Reductions in general of organic substrates, e.g. hydride reductions or hydrogenations
    • B01J2231/641—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/10—Complexes comprising metals of Group I (IA or IB) as the central metal
    • B01J2531/16—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/82—Metals of the platinum group
    • B01J2531/822—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22—Organic complexes
    • B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
    • B01J31/2208—Oxygen, e.g. acetylacetonates
    • B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
    • B01J31/223—At least two oxygen atoms present in one at least bidentate or bridging ligand
    • B01J31/2234—Beta-dicarbonyl ligands, e.g. acetylacetonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22—Organic complexes
    • B01J31/2282—Unsaturated compounds used as ligands
    • B01J31/2295—Cyclic compounds, e.g. cyclopentadienyls

Definitions

  • the present invention relates to chiral di- and triphosphites with the general formulas I or II, which are bridged via suitable groups, the use of these compounds in asymmetric transition metal catalysis, and chiral transition metal catalysts.
  • ligands required for this are often chiral phosphorus-containing ligands (P ligands), e.g. As phosphines, phosphonites, phosphinites, phosphites or phosphoramidites, which are bound to the transition metals.
  • P ligands chiral phosphorus-containing ligands
  • Typical examples are rhodium, ruthenium or iridium complexes of optically active diphosphines such as BINAP.
  • Monophosphorus-containing ligands of types A, B and C are particularly easily accessible and can be varied very easily due to the modular structure.
  • the radical R in A, B or C can be used to build up a large number of chiral ligands, which enables ligand optimization in a given transition metal-catalyzed reaction (e.g. hydrogenation of a prochiral olefin, ketone or imine or hydroformylation of a prochiral olefin).
  • a transition metal-catalyzed reaction e.g. hydrogenation of a prochiral olefin, ketone or imine or hydroformylation of a prochiral olefin.
  • a transition metal-catalyzed reaction e.g. hydrogenation of a prochiral olefin, ketone or imine or hydroformylation of a prochiral olefin.
  • a transition metal-catalyzed reaction e.g. hydrogenation of a prochiral olefin, ketone or imine or hydroformylation of a prochiral olefin
  • the object of the present invention was accordingly to provide new chiral phosphorus ligands which are simple to prepare and which, as ligands in transition metal complexes, give catalysts which show high efficiency in transition metal catalysis, in particular in the hydrogenation and hydroboration and hydrocyanation of olefins, ketones and ketimes.
  • the present invention accordingly relates to chiral compounds having the general formula I or II
  • L 1 , L 2 , L 3 , L 4 , L 1 , L 2 , L 3 , L 4 , L 5 and L 6 can each be the same or different and at least one of L 1 , L 2 , L 3 and L 4 in formula I or at least one of L 1 , L 2 , L 3 , L 4 ,
  • L 5 and L 6 in formula II represent a chiral radical, it being possible for L 1 and L 2 , L 3 and L 4 , L 1 and L 2 , L 3 and L 4 , and L 5 and L 6 to be linked to one another,
  • Y 1 , Y 2 , Y 3 , Y 4 , Y 5 , Y 6 , Y 1 ' , Y 2' , Y 3 ' , Y 4' , Y 5 ' , Y 6' , Y 7 Y 8 Y 9 are the same or can be different and represent O, S or a group NR ', in which R' is hydrogen, optionally substituted CC 6 -
  • Alkyl or optionally substituted aryl means, where the substituents can be selected, for example, from F, Cl, Br, I, OH, NO 2 , CN, carboxyl, carbonyl, sulfonyl, silyl,
  • R a and R can be defined as R 1 ,
  • R 1 and R 2 for C 2 -C 22 alkylene preferably ethylene, n-propylene, iso-propylene, n-butylene, iso-butylene, sec-butylene, phenylene, diphenylene, which may optionally have substituents, such as
  • Groups L 1 Y 1 and L 2 Y 2 and L 3 Y 3 and L 4 Y 4 each together form a binol radical and m is 1, R 1 is not ethylene, and when Y 5 and Y 6 are O and the groups L 1 Y 1 and L 2 Y 2 and L 3 Y 3 and L 4 Y 4 each together form a binol radical, m is not 4 or 5, and if in the compound with the formula I the group Y 5 - [R 1 Y 6 ] m for -N (CH 3 ) -C 2 H 4 -
  • the compounds of the formulas I and II according to the invention are new. They can be easily converted into the corresponding complexes using transition metal salts, which in turn are extremely well suited for transition metal catalysis.
  • the compounds of the formulas I and II are preferably derivatives of phosphorous acid or thiophosphorous acid, ie Y 1 , Y 2 , Y 3 , Y 4 , Y 5 , Y 1 ' , Y 2' , Y 3 ' , Y 4' , Y 5 , Y 7 Y 8 Y 9 mean oxygen or sulfur.
  • the starting compounds can be prepared in a simple manner or are commercially available at low cost.
  • At least one of the radicals L 1 , L 2 , L 3 , L 4 , L 1 , L 2 , L 3 , L 4 , L 5 and L 6 is chiral, ie has one or more optically active elements. Those ligands which contain elements with axial chirality are particularly preferred.
  • L 4 , as well as L 5 and L 6 are bridged, with particular preference forming a binol radical.
  • suitable groups L 1 -Y 1 and L 2 -Y 2 , L 3 -Y 3 , L 4 -Y 4 , L r -Y r , L 2 ' -Y 2' , L 3 ' -Y 3' , L 4 -Y 4 ' , L 5 - Y 5 and L ⁇ Y 6 in which these residues are bridged are:
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl carboxyl
  • R ' H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl carboxyl
  • R ' H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl
  • R H, alkyl, aryl
  • R ' H, alkyl, aryl, sulfonyl
  • R ' H, alkyl, aryl, sulfonyl
  • R ' H, alkyl, aryl, sulfonyl
  • X F, Cl, Br, I
  • R H, alkyl, aryl, sulfonyl
  • R ' H, alkyl, aryl, sulfonyl
  • R ' H, alkyl, aryl, sulfonyl
  • X F, Cl, Br, I
  • R alkyl
  • R H, alkyl, aryl, sulfonyl
  • R H, alkyl, aryl, sulfonyl
  • R aryl
  • the groups -Y 5 - [R 1 ⁇ 6 ] m - and -Y 5 - [R 2 ⁇ 6 ] m- connect the two chiral phosphorus-containing parts of the molecule to one another, thereby representing alkyleneoxy, thioalkyleneoxy or di- or triamino compounds.
  • Y 6 and Y 6 for oxygen, so that the groups mentioned are radicals which are derived from mono-, di-, oligo- or polyalkylene oxide radicals or polyalkyleneoxy radicals.
  • the groups R 1 ⁇ and R 3 are preferably derived from ethylene oxide (EO), iso-propylene oxide (PO) and glycerol.
  • n and m ' according to the invention stand for numbers between 1 and 1000, preferably for 1 to 10, in particular 1 to 6. In particular if the radicals
  • R 1 and R 2 are ethylene, n-propylene or iso-propylene, m and m 'can represent a number above 6.
  • the present invention further provides a process for the preparation of chiral compounds of the general formula I or II,
  • Lg 1 and Lg 2 can be the same or different and selected for a group from L 1 -Y 1 ,
  • At least one of the compounds with the formulas III to XII has a chiral center or axial chirality.
  • the pure or enriched enantiomers are preferably used as starting compounds.
  • Enantiomeric mixtures of the compounds of the formula I or II according to the invention can be separated into the pure enantiomers in a manner known per se by physical and chemical separation processes. Chromatography may be mentioned as physical separation processes.
  • the chemical separation can be carried out by co-crystallization with suitable chiral, enantiomerically enriched auxiliaries, such as, for example, chiral enantiomerically pure amines.
  • radicals L 1 to L 8 are aryl radicals or bridged aryl radicals
  • the separation of stereoisomers can take place, for example, by the compounds of the formula I or II being co-crystallized with suitable chiral, enantiomerically enriched auxiliaries, such as, for example, chiral enantiomerically pure amines into which enantiomers are separated.
  • the present invention further relates to transition metal catalysts which contain chiral compounds of the general formula I and / or II as ligands.
  • the present invention further relates to a process for the preparation of transition metal catalysts comprising transition metal complexes of chiral compounds of the general formula I and / or II, in which transition metal salts are known per se with one or more of the compounds of the formulas I and / or II are implemented.
  • the catalysts or precatalysts can be prepared by processes which are well known to those skilled in the art.
  • the respective ligands or mixtures of ligands are usually brought together with a suitable transition metal complex.
  • the transition metals that can be used include those from groups IIIb, IVb, Vb, Vlb, Vllb, VIII, Ib and Mb of the periodic table, as well as lanthanides and actinides.
  • the metals are preferably selected from the transition metals of the
  • Groups VIII and Ib of the periodic table are Transition metal complexes of ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum and copper, preferably those of ruthenium, rhodium, iridium, nickel, palladium, platinum and copper.
  • the metal compound and the ligand i.e. Compounds with the formula I or II are usually used in amounts such that catalytically active compounds are formed.
  • the amount of the metal compound used can be 25 to 200 mol%, based on the chiral compounds of the general formulas I and / or II used, 30 to 100 mol% are preferred, 80 to 100 mol% are very particularly preferred, and more more preferably 90 to 100 mol%.
  • the catalysts which contain transition metal complexes or isolated transition metal complexes generated in situ, are particularly suitable for use in a process for the preparation of chiral compounds.
  • the catalysts are preferably used for asymmetric 1,4-additions, asymmetric hydroformylations, asymmetric hydrocyanations, asymmetric hydroboration, asymmetric hydrosilylation, asymmetric hydrovinylation, asymmetric Heck reactions and asymmetric hydrogenations.
  • Another subject is accordingly a process for asymmetric transition metal-catalyzed hydrogenation, hydroboration, hydrocyanation, 1,4-addition, hydroformylation, hydrosilylation, hydrovinylation and Heck reaction of prochiral olefins, ketones or ketimines, characterized in that the catalysts contain chiral ligands have the formulas I and / or II defined above.
  • the transition metal catalysts are used for the asymmetric hydrogenation, hydroboration or hydrocyanation of prochiral olefins, ketones or ketimines. End products are obtained in good yield and high purity of the optical isomers.
  • Particularly preferred asymmetric hydrogenations are hydrogenations of prochiral enamines and olefins.
  • the amount of the metal compound or the transition metal complex used can be, for example, 0.0001 to 5 mol%, based on the substrate used, 0.0001 to 0.5 mol% is preferred, 0.0001 to 0.1 is very particularly preferred mol% and even more preferably 0.001 to 0.008 mol%.
  • asymmetric hydrogenations can be carried out, for example, in such a way that the catalyst is generated in situ from a metal compound and a chiral compound of the general formula I and / or II, if appropriate in a suitable solvent, the substrate is added and the reaction mixture is brought down at the reaction temperature Hydrogen pressure is set.
  • Suitable solvents for the asymmetric hydrogenation are, for example, chlorinated alkanes such as methylene chloride, short-chain CC 6 alcohols, such as. As methanol, iso-propanol or ethanol, aromatic hydrocarbons, such as. B. toluene or benzene, ketones such as z. B. acetone or carboxylic acid esters such. B. ethyl acetate.
  • the asymmetric hydrogenation is carried out, for example, at a temperature of from -20 ° C. to 200 ° C., preferably 0 to 100 ° C. and particularly preferably at 20 to 70 ° C.
  • the hydrogen pressure can be, for example, 0.1 to 200 bar, preferably 0.5 to 50 and particularly preferably 0.5 to 5 bar.
  • the catalysts of the invention are particularly suitable in a process for the production of chiral active ingredients of pharmaceuticals and agricultural chemicals or
  • the advantage of the present invention is that good activities with extraordinary selectivity can be achieved with ligands that are easy to prepare, especially in asymmetric hydrogenations.
  • Examples 19-36 describe the hydrogenation of the substrate dimethyl itaconate to 2-methylsuccinic acid dimethyl ester according to the "General instructions for hydrogenation with catalyst prepared in situ". The exact reaction conditions and the conversions and enantioselectivities achieved are given in Table 1.
  • Examples 37-41 describe the hydrogenation of the substrate 2-acetamidoacrylic acid methyl ester to ⁇ / -acetylalanine methyl ester according to the “general instructions for hydrogenation with catalyst prepared in situ”. The exact reaction conditions and the conversions and enantioselectivities achieved are given in Table 2.
  • Examples 42-43 describe the hydrogenation of the substrate ⁇ r-acetamido cinnamic acid methyl ester to ⁇ / -acetylphenylalanine methyl ester according to the “general instructions for hydrogenation with catalyst prepared in situ”. The exact reaction conditions and the conversions and enantioselectivities achieved are given in Table 3.
  • Examples 49-51 describe the hydrogenation of the substrate acetic acid 1-phenyl vinyl ester to acetic acid 1-phenyl ethanol ester.
  • 0.25ml of a 2mM ligand solution was mixed with 0.25ml of a 2mM solution of [Rh (cod) 2 ] BF 4 .
  • the mixture was stirred at 60 bar hydrogen pressure for 20 h.
  • 2 ml of the solution thus obtained were filtered through silica (70-230 mesh, activity level I) and analyzed by gas chromatography.
  • the exact reaction conditions as well as the conversions and enantioselectivities achieved are given in Table 5.

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Abstract

L'invention concerne des di- et triphosphites ayant la formule générale (I) ou (II) et reliés par des groupes appropriés. Les composés concernés peuvent être utilisés dans la catalyse asymétrique de métaux transitoires et comme catalyseurs chiraux de métaux transitoires.
EP04802710A 2003-11-12 2004-11-11 Di- et triphosphites chiraux Withdrawn EP1689761A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10352757A DE10352757A1 (de) 2003-11-12 2003-11-12 Chirale Di- und Triphosphite
PCT/DE2004/002493 WO2005047299A2 (fr) 2003-11-12 2004-11-11 Di- et triphosphites chiraux

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EP1689761A2 true EP1689761A2 (fr) 2006-08-16

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EP04802710A Withdrawn EP1689761A2 (fr) 2003-11-12 2004-11-11 Di- et triphosphites chiraux

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ITMI20131612A1 (it) * 2013-09-30 2015-03-31 Maurizio Benaglia Dioli bieteroaromatici e loro derivati.
CN105753906A (zh) * 2014-12-18 2016-07-13 中国科学院兰州化学物理研究所 环己二醇衍生的手性双齿亚磷酸酯配体及其制备方法和应用
DE102015207870A1 (de) * 2015-04-29 2016-11-03 Evonik Degussa Gmbh Neue Monophosphitverbindungen mit einer Sulfonatgruppe
CN105037442B (zh) * 2015-07-17 2017-05-10 华中师范大学 手性硫醚‑膦配体及制备方法及用途
CN111203277B (zh) * 2020-02-27 2022-11-18 郑州大学 手性双齿亚磷酸酯配体的应用、Conia-Ene反应催化剂和构建手性季碳中心的方法
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CA2546218A1 (fr) 2005-05-26
US20060224002A1 (en) 2006-10-05
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WO2005047299A2 (fr) 2005-05-26
WO2005047299A3 (fr) 2005-09-09

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