ATE114295T1 - Herstellung von biaryl-verbindungen. - Google Patents
Herstellung von biaryl-verbindungen.Info
- Publication number
- ATE114295T1 ATE114295T1 AT90901266T AT90901266T ATE114295T1 AT E114295 T1 ATE114295 T1 AT E114295T1 AT 90901266 T AT90901266 T AT 90901266T AT 90901266 T AT90901266 T AT 90901266T AT E114295 T1 ATE114295 T1 AT E114295T1
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- biaryl compounds
- biaryl
- compounds
- polar
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C255/50—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
- C07C255/51—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings containing at least two cyano groups bound to the carbon skeleton
-
- 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
- B01J31/1805—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 nitrogen
- B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
-
- 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
- B01J31/1805—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 nitrogen
- B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
- B01J31/1815—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine
-
- 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
-
- 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
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
-
- 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
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom
- B01J31/2414—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom comprising aliphatic or saturated rings
-
- 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
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
- B01J31/2442—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems
- B01J31/2447—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring
- B01J31/2452—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring with more than one complexing phosphine-P atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/26—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
- C07C17/269—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions of only halogenated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/30—Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
-
- 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
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
-
- 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
- B01J2231/40—Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
- B01J2231/42—Catalytic cross-coupling, i.e. connection of previously not connected C-atoms or C- and X-atoms without rearrangement
- B01J2231/4205—C-C cross-coupling, e.g. metal catalyzed or Friedel-Crafts type
-
- 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
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0202—Polynuclearity
- B01J2531/0205—Bi- or polynuclear complexes, i.e. comprising two or more metal coordination centres, without metal-metal bonds, e.g. Cp(Lx)Zr-imidazole-Zr(Lx)Cp
-
- 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
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0261—Complexes comprising ligands with non-tetrahedral chirality
- B01J2531/0266—Axially chiral or atropisomeric ligands, e.g. bulky biaryls such as donor-substituted binaphthalenes, e.g. "BINAP" or "BINOL"
-
- 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
- B01J2531/84—Metals of the iron group
- B01J2531/842—Iron
-
- 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
- B01J2531/84—Metals of the iron group
- B01J2531/847—Nickel
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/06—Halogens; Compounds thereof
- C07C2527/128—Compounds comprising a halogen and an iron group metal or a platinum group metal
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- C07C2531/24—Phosphines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups C07C2531/02 - C07C2531/24
- C07C2531/28—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups C07C2531/02 - C07C2531/24 of the platinum group metals, iron group metals or copper
- C07C2531/30—Halides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27782688A | 1988-11-30 | 1988-11-30 | |
US07/389,022 US4916227A (en) | 1989-08-03 | 1989-08-03 | Preparation of biaryl compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE114295T1 true ATE114295T1 (de) | 1994-12-15 |
Family
ID=26958736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90901266T ATE114295T1 (de) | 1988-11-30 | 1989-11-13 | Herstellung von biaryl-verbindungen. |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP0446301B1 (de) |
JP (1) | JP2922289B2 (de) |
AT (1) | ATE114295T1 (de) |
CA (1) | CA2002598A1 (de) |
DE (1) | DE68919478T2 (de) |
WO (1) | WO1990006295A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3008510B2 (ja) * | 1991-02-16 | 2000-02-14 | ダイキン工業株式会社 | 含フッ素エタンの2量体の製法 |
US5380910A (en) * | 1992-04-28 | 1995-01-10 | Ihara Chemical Industry Co., Ltd. | Method for producing an asymmetric biaryl derivative |
TW225485B (de) * | 1992-05-29 | 1994-06-21 | Hoechst Ag | |
EP0613720A1 (de) | 1993-03-05 | 1994-09-07 | Duphar International Research B.V | Nickel Katalysator für die Cyanierung von aromatischen Halogenverbindungen |
EP0613719A1 (de) * | 1993-03-05 | 1994-09-07 | Duphar International Research B.V | Nickel-Katalysator für die Cyanierung von aromatischen Halogenverbindungen |
DE4326169B4 (de) * | 1993-08-04 | 2004-08-19 | Merck Patent Gmbh | Verfahren zur Herstellung von unsymmetrischen Bisarylverbindungen |
DE10241814A1 (de) | 2002-09-06 | 2004-03-25 | Covion Organic Semiconductors Gmbh | Prozeß zur Herstellung von Aryl-Aryl gekoppelten Verbindungen |
CN112707778B (zh) * | 2019-10-24 | 2022-08-12 | 杭州奥得科技有限公司 | 一种制备1,2,7,8-四氢双环戊烷并[cd, lm]苝化合物的方法及其产物 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4263466A (en) | 1978-10-30 | 1981-04-21 | Union Carbide Corporation | Coupling of aryl and heteroaryl mono chlorides |
-
1989
- 1989-11-09 CA CA002002598A patent/CA2002598A1/en not_active Abandoned
- 1989-11-13 EP EP90901266A patent/EP0446301B1/de not_active Expired - Lifetime
- 1989-11-13 AT AT90901266T patent/ATE114295T1/de active
- 1989-11-13 DE DE68919478T patent/DE68919478T2/de not_active Expired - Fee Related
- 1989-11-13 JP JP2501271A patent/JP2922289B2/ja not_active Expired - Lifetime
- 1989-11-13 WO PCT/US1989/005218 patent/WO1990006295A1/en active IP Right Grant
- 1989-11-13 EP EP89420436A patent/EP0376856A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO1990006295A1 (en) | 1990-06-14 |
JPH05501853A (ja) | 1993-04-08 |
EP0376856A1 (de) | 1990-07-04 |
EP0446301A1 (de) | 1991-09-18 |
CA2002598A1 (en) | 1990-05-31 |
DE68919478D1 (de) | 1995-01-05 |
JP2922289B2 (ja) | 1999-07-19 |
DE68919478T2 (de) | 1995-04-06 |
EP0446301B1 (de) | 1994-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL191417C (nl) | Werkwijze ter bereiding van een magnesiumhalogenide-katalysatordrager, een overgangsmetaal-katalysator op een dergelijke drager en een polymerisatiewerkwijze onder toepassing van een dergelijke katalysator. | |
DE3682716D1 (de) | Optisches verfahren zur herstellung von schichten aus der gasphase mit einer starken optischen intensitaet waehrend der beginnphase und vorrichtung dafuer. | |
DK150707C (da) | Fremgangsmaade til fremstilling af fint fordelte, paa en baerer anbragte legeringskatalysatorer indeholdende platin | |
EG16844A (en) | Method of regenerating a deactivated catalyst | |
ES538244A0 (es) | Un procedimiento de preparar un derivado de trans-1,2-diaminociclohexil-amida. | |
DE3583244D1 (de) | Verfahren zur deaktivierung eines ethylenpolymerisationskatalysators. | |
ATE114295T1 (de) | Herstellung von biaryl-verbindungen. | |
DE3674270D1 (de) | Verfahren zur herstellung eines silber enthaltenden katalysators. | |
DE3761661D1 (de) | Verfahren zur herstellung von 2,2-di- (p-glycidoxi-cyclohexyl)- propan. | |
DE3766500D1 (de) | Verfahren zur dehalogenierung von halogenierten kohlenwasserstoffen. | |
DE3674055D1 (de) | Verfahren zur herstellung von 1,3,5-triazintrionen. | |
ES529694A0 (es) | Un metodo para regenerar y reutilizar un catalizador de metal precioso-estano para chapado no electrolitico | |
DE3673238D1 (de) | Verfahren und katalysator zur oligomerisierung von olefinen. | |
DK540984D0 (da) | Fremgangsmaade til fremstilling af 1,2,4-triazolo-(1,5-a)pyrimidin-2-sulfonylchlorider | |
DE3673357D1 (de) | Verfahren zur herstellung eines silberkatalysators auf einem traeger. | |
DE68900501D1 (de) | Kaliumcarbonat-traeger, katalysatoren und verfahren zur dimerisation von olefinen mit diesen katalysatoren. | |
DE3674540D1 (de) | Verfahren zum regeln von turbokompressoren. | |
DE3668250D1 (de) | Verfahren zur herstellung von magnetischen aufzeichnungstraegern. | |
ES521444A0 (es) | Un metodo para preparar espiro-(mono- y difluorofluoren-9,4-imidazolidin)-2,5'-dionas. | |
DE3670482D1 (de) | Katalystisches reduzierungsverfahren zur produktion von aromatischen aminoverbindungen. | |
ES535810A0 (es) | Un procedimiento para preparar acido 19-(3,6-dihidro-3-metil-6-oxo-2h-piran-2-il-)-17-etil-6-hidroxi-9-(hidroximetil)-3,5,7,11,15-pentametil-8-oxo-2,10,12,16,18,-nonadecapentaenoico. | |
DE3671436D1 (de) | Verfahren zur herstellung von 2,2,-dibrom-3-oxonitrilen. | |
DE3481662D1 (de) | Verfahren zur herstellung von magnetischen aufzeichnungstraegern und die traeger. | |
DE3675989D1 (de) | Verfahren zur herstellung von magnetischen aufzeichnungstraegern. | |
ES464140A1 (es) | Metodo para galvanoplastia de paladio sobre un sustrato. |