WO2010130846A2 - Complejos de paladio-fosfina para la telomerización de butadieno - Google Patents
Complejos de paladio-fosfina para la telomerización de butadieno Download PDFInfo
- Publication number
- WO2010130846A2 WO2010130846A2 PCT/ES2009/070159 ES2009070159W WO2010130846A2 WO 2010130846 A2 WO2010130846 A2 WO 2010130846A2 ES 2009070159 W ES2009070159 W ES 2009070159W WO 2010130846 A2 WO2010130846 A2 WO 2010130846A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ligand
- substituted
- tert
- butyl
- xanthene
- Prior art date
Links
Classifications
-
- 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 System
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/655—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms
- C07F9/6552—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms the oxygen atom being part of a six-membered ring
- C07F9/65522—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms the oxygen atom being part of a six-membered ring condensed with carbocyclic rings or carbocyclic ring systems
Definitions
- telomerization of butadiene typically occurs when methanol is present with a palladium phosphine-based catalyst in a three-stage process.
- stage 1 the telomerization of butadiene gives 1-methoxy-2,7-octadiene (MOD-1).
- stage two the hydrogenation of MOD-1 gives methyl methyl ether.
- step three the methyl-methyl ether undergoes the cleavage of the ether to give 1-octene and methanol.
- a catalytic combination for telomerization of a palladium (Pd) and triphenylphosphine (TPP) salt provides less than desirable results in terms of 1-octene yield. This seems to be due, at least in part, to secondary reactions that lead to the formation of 3-methoxy-1, 7-octadiene (MOD-3) and 1, 3,7-octatriene.
- telomerization catalyst with a higher productivity in terms of kilogram (kg) of MOD-1 produced by gram (g) of Pd catalyst, mostly due to the cost of Pd.
- EP 461222 aryl phosphine ligands with methoxide substituents in ortho position tend to improve the selectivity to
- MOD-1 on products of side reactions such as MOD-3 and 1, 3,7- octatriene.
- the increase in selectivity is compensated by a lower stability of the Pd complex, evidenced by at least one between lower catalyst productivity and an increase in Pd losses (eg by precipitation), especially as the methanol concentration increases (MeOH ).
- United States Patent (USP) 7,425,658 discloses a method for producing 1-octene from butadiene by dimerizing and alkoxylating butadiene in the presence of one or more alkoxy substituted phosphine ligands under alkoxy dimerization conditions with a catalyst of alkoxymerization.
- Illustrative phosphine ligands include tris- (2,4,6-trimethoxyphenyl) phosphine and tris- (4-methoxyphenyl) phosphine.
- Illustrative phosphine ligands include tris- (2- methoxyphenyl) phosphine, tris- (2,4-dimethoxyphenyl) phosphine, bis- (2-methoxyphenyl) phenylphosphine, tris- (2- methoxy-4-fluorophenyl) phosphine, and tris- (2-methoxy-4-chlorophenyl) phosphine.
- U.S. Pat. 7,026,523 (Rottger et al.) Provides a method for telomerizing non-cyclic olefins that includes the use of a palladium-carbine complex as a catalyst.
- this invention is a phosphine ligand suitable for use in the telomerization catalyzed by Pd of butadiene to MOD-1.
- the phosphine ligand comprises two phenyl groups, a xanthene, the xanthene having an oxygen atom incorporated in a rigid ring structure consisting of two aromatic rings, and a phosphorous binding moiety, the ligand being represented by a formula as follows:
- R 1 are the same and are each H, linear, branched or cyclic CrC 2 O alkyl, C 6 -Ci 8 aryl, CrC 2 O alkoxy or polyether. All R 3 are the same or different, and are each H, linear, branched or cyclic CrC 2 O alkyl, C 6 -Ci 8 aryl, halogen, trifluoromethyl, CrC 2 O alkoxy, or dialkyl-Ci-C 20 - Not me.
- X is a bridge forming moiety consisting of either a dimethyl substituted carbon atom (-CMe 2 -) or a dimethyl substituted silicon atom (-SiMe 2 ).
- this invention is a method for synthesizing the xanthene-containing phosphine ligand, the process comprising the sequential steps a) monobromating a xanthene, b) lithiating the monobrominated xanthene, and c) carrying out a nucleophilic substitution of the lithium monobromated xanthene using a phosphine.
- Ligand recovery occurs by conventional technology, eg filtration and solvent removal.
- Preferred reactants include 2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene as xanthene and chlorodiphenylphosphine such as phosphine.
- Step (i) is preferably produced in a reaction fluid comprising 1,3-butadiene, the hydroxy compound and the telomerization catalyst.
- the reaction fluid may also comprise one or more optional component (s), such as an organic solvent, a catalyst promoter, a catalyst stabilizer, or an inhibitor of butadiene polymerization.
- the phosphine ligand is preferably present in an amount sufficient to stabilize palladium.
- the amount advantageously provides an initial palladium ligand ratio of at least 1.0, preferably at least 1.5.
- the initial ratio of phosphine to palladium ligand is advantageously less than 50, and preferably less than 40.
- the process for producing 1-octene can employ any catalyst. of palladium or precursor of the catalyst known in the art, eg palladium metal, a compound of palladium (II), a complex of palladium (0), or a mixture thereof.
- the process for producing 1-octene is advantageously produced under an inert atmosphere, such as nitrogen, argon or helium, and at a reaction temperature sufficient to produce the 2,7-octadiene substituted at 1.
- the reaction temperature is preferably greater than ( >) 40 ° C ( 0 C), more preferably> 50 0 C, and even more preferably> 60 ° C, and is preferably below ( ⁇ ) 120 0 C, more preferably ⁇ 110 ° C, and even more preferably ⁇ 100 ° C
- compositions claimed herein by using the term “comprises” may include any other additive, adjuvant or compound, whether it is polymeric or has another form, unless otherwise indicated.
- the expression “consists essentially of” excludes from the scope of any subsequent recitation any other component, stage or procedure, except those that are not essential for operation.
- the term “consists of” excludes any component, stage or procedure that is not specifically indicated or listed.
- the expressions of temperature can be in terms of degrees
- Ligand synthesis occurs through a multi-stage procedure.
- a xanthene is monobromated, preferably 2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene.
- stage two the monobrominated xanthene was lithiated.
- step three a nucleophilic substitution of the monolithiated xanthene is carried out using a phosphine, preferably chlorodiphenylphosphine.
- ligand recovery is carried out, eg by filtration and solvent removal.
- Example 1 11 molar equivalents of NBS (N-bromosuccinimide) are added to a flask containing a solution of 2.87 grams (g) of 2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene in 100 ml of a 1: 1 volumetric mixture of DMF (dimethylformamide) and tetrahydrofuran (THF). The flask is covered with aluminum foil and its contents are stirred overnight. The conversion of 2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene into 4- bromo-2,7-tert-butyl-9,9-dimethyl-9H-xanthene (monobrominated product) is monitored.
- NBS N-bromosuccinimide
- GC gas chromatography
- the solid content of the flask is recovered by evaporating the solvent to dryness. The solid is washed with water and then the crude product is extracted with diethyl ether. The diethyl ether is evaporated to give a yellow solid. The yellow solid is purified by filtration on silica with hexane as eluent to give 2.8 g of a white solid product containing 90 mole percent (mol%) of monobrominated product, 7 mol% of the starting xanthene and mol 3% of dibromated product, each mole% being based on combined moles of monobrominated product, starting xanthene and dibromated product. This product is used without purification additional in the synthesis of phosphine.
- the white solid is purified by chromatography on a silica gel column using a 4: 1 volume ratio mixture of hexane and dichloromethane as eluent.
- the purified solid (0.95 g or 1.87 mmol represents a 55% yield, based on the starting materials) and is 4- (diphenylphosphino) -2,7-tert-butyl-9,9-dimethyl-9H -xanthene (1).
- Example 1 is replicated with changes to synthesize 4- (di-p-trifluoromethylphenylphosphino) -2,7-di-tert-butyl-9,9-dimethylxanthene.
- 1.2 g (3.44 mmol) of chloro-bis-p-trifluoromethylphenylphosphine are replaced by the chlorodiphenylphosphine used in Example 1.
- 1.53 g (3.44 mmol) of the white solid product containing 90 percent is used in moles (% mol) of monobrominated product.
- the volume ratio of the mixture on the silica gel column is changed to 8: 1.
- the purified solid represents a yield of 55%.
- Example 2 is replicated with changes to synthesize 4- (di-p-tolylphosphino) -2,7-di-tert-butyl-9,9-dimethylxanthene. 0.86 g (3.44 mmol) of chloro-bis-p-tolylphosphine is replaced by the chloro-bis-p-trifluoromethylphenylphosphine used in Example 2. The volume ratio of the mixture on the gel column is changed. silica at 10: 3. The purified solid represents a yield of 56%.
- Example 3 is replicated with changes to synthesize 4- (di-p-methoxyphenylphosphino) -2,7-di-tert-butyl-9,9-dimethylxanthene. 0.97 g (3.44 mmol) of chloro-bis-p- is substituted methoxyphenylphosphine by chloro-bis-p-tolylphosphine used in Example 3. The volume ratio of the mixture on the silica gel column is changed to 1: 1. The purified solid represents a yield of 28%.
- Example 5 Example 4 is replicated with changes to synthesize 4- (2,7-dimethylphenoxaphosphino) -2,7-di-tert-butyl-9,9-dimethylxanthene. 0.90 g (3.44 mmol) of chloro-2,7-dimethylphenophosphine is replaced by the chloro-bis-p-methoxyphenylphosphine used in Example 4. The volume ratio of the mixture on the gel column is changed. silica at 5: 1. The purified solid represents a yield of 58%.
- Parr reactor (electropolished stainless steel, maximum working pressure 131 bar or 13,100 KPa, temperature range from -10 0 C to 350 0 C, and stirring speed range from 0 revolutions per minute (rpm) at 1200 rpm).
- the Parr autoclave reactors are filled with specified amounts of methanol, promoter (sodium methoxide, at a molar ratio of palladium promoter of 5 to 1) and inhibitor (diethylhydroxylamine, approximately 20 parts by weight per million parts in weight (ppm) based on the total weight of methanol plus the gross C4 load).
- the autoclave is closed, purged twice with low pressure nitrogen (6 bar or 600 kilopascals (KPa)) to substantially remove the oxygen contained in the autoclave.
- the autoclave is pressurized once with high pressure nitrogen (20 bar or 2,000 KPa) to test for leaks.
- a cylinder of stainless steel samples is filled with a crude C 4 stream containing approximately 50% by weight of 1,3-butadiene, based on the total weight of the crude C 4 stream, and The current is added with pressure to the autoclave with low pressure nitrogen (6 bar or 600 KPa).
- the temperature in the autoclave is raised to a desired working temperature (60 ° C, 75 ° C, 90 0 C or 100 ° C as shown in Table 1 below).
- a standard catalyst, palladium acetylacetonate (Pd (acac) 2 ) plus two molar equivalents of triphenylphosphine and a molar equivalent of acetic acid is used.
- the catalyst is prepared in methanol by dissolving the three components in such a way that the concentration of palladium in methanol is equal to approximately 500 ppm.
- Comparative Example A is replicated, but the xanthene-based ligand is replaced by Ia triphenylphosphine
- An amount of the catalyst solution is weighed, so that the concentration of palladium in the reactor after the addition of all raw materials is 10 ppm based on the total weight of the raw materials, in a dry box, then puts the dissolution of the catalyst in a stainless steel sample cylinder.
- the solution of the catalyst is added with pressure to the autoclave using high pressure nitrogen (19 bar at 20 bar or 1900 KPa at 2000 KPa). After the addition of the catalyst, a reaction begins, which produces a final product. Autoclave samples are taken at set times (five minutes after the addition of the catalyst and at intervals of 30 minutes afterwards) and the gas and liquid phases of the samples are analyzed by GC.
- the precipitation of palladium in the reactor is determined by measuring the concentration of palladium in the liquid phase after the reaction and comparing it with a theoretical number based on the total amount of palladium added and the volume of the total liquid, which includes the liquids added at the beginning of the reaction and the liquids formed due to the conversion of butadiene.
- concentration of palladium in the liquid is measured using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES).
- Table 1 presents the data for, respectively, Conversion, Selectivity to MOD-1 and Precipitation of Pd, all at weights of methanol (MeOH) to butadiene (Bd) of 2, 2.6 and 5.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/263,353 US8912346B2 (en) | 2009-05-14 | 2009-05-14 | Palladium phosphine complexes for the telomerization of butadiene |
JP2012510320A JP5551239B2 (ja) | 2009-05-14 | 2009-05-14 | ブタジエンのテロメリゼーションのためのパラジウムホスフィン錯体 |
EP09784120.9A EP2431375B1 (en) | 2009-05-14 | 2009-05-14 | Palladium phosphine complexes for the telomerization of butadiene |
BRPI0924014A BRPI0924014A2 (pt) | 2009-05-14 | 2009-05-14 | ligante de fosfina e procedimento para produzir 1-octeno |
PCT/ES2009/070159 WO2010130846A2 (es) | 2009-05-14 | 2009-05-14 | Complejos de paladio-fosfina para la telomerización de butadieno |
ES09784120T ES2420755T3 (es) | 2009-05-14 | 2009-05-14 | Complejos de fosfina-paladio para la telomerización de butadieno |
CA2761768A CA2761768A1 (en) | 2009-05-14 | 2009-05-14 | Palladium phosphine complexes for the telomerization of butadiene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2009/070159 WO2010130846A2 (es) | 2009-05-14 | 2009-05-14 | Complejos de paladio-fosfina para la telomerización de butadieno |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010130846A2 true WO2010130846A2 (es) | 2010-11-18 |
WO2010130846A3 WO2010130846A3 (es) | 2011-03-17 |
Family
ID=41278802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2009/070159 WO2010130846A2 (es) | 2009-05-14 | 2009-05-14 | Complejos de paladio-fosfina para la telomerización de butadieno |
Country Status (7)
Country | Link |
---|---|
US (1) | US8912346B2 (es) |
EP (1) | EP2431375B1 (es) |
JP (1) | JP5551239B2 (es) |
BR (1) | BRPI0924014A2 (es) |
CA (1) | CA2761768A1 (es) |
ES (1) | ES2420755T3 (es) |
WO (1) | WO2010130846A2 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI605055B (zh) * | 2012-12-21 | 2017-11-11 | 陶氏全球科技有限責任公司 | 啡膦化合物 |
CA2981600C (en) | 2015-04-10 | 2023-09-05 | Dow Global Technologies Llc | Butadiene telomerization catalyst and preparation thereof |
US10023513B1 (en) | 2015-08-19 | 2018-07-17 | Brian T. Keen | Telomerization methods of using ethylene and/or propylene to make telomers of limited molecular weight |
CN110290872B (zh) * | 2017-02-27 | 2022-10-18 | 株式会社可乐丽 | 催化剂液的制造方法 |
EP4200452A1 (en) | 2020-08-18 | 2023-06-28 | Enviro Metals, LLC | Metal refinement |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0461222A1 (en) | 1989-12-29 | 1991-12-18 | Dow Chemical Co | CONTINUOUS PROCESS FOR THE TELOMERIZATION OF CONJUGATED DENEES. |
EP0561779A1 (en) | 1990-12-13 | 1993-09-29 | Dow Chemical Co | METHOD FOR PRODUCING 1 OCT. |
US20050038305A1 (en) | 2003-08-11 | 2005-02-17 | Edwards Charles Lee | Process for producing 1-octene from butadiene |
US7026523B2 (en) | 2001-06-09 | 2006-04-11 | Oxeno Olefinchemie Gmbh | Method for telomerizing non-cyclic olefins |
US7030286B2 (en) | 2001-02-08 | 2006-04-18 | Oxeno Olefinchemie Gmbh | Method for producing 1-octene |
US8818608B2 (en) | 2012-11-30 | 2014-08-26 | Google Inc. | Engaging and disengaging for autonomous driving |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19838742A1 (de) * | 1998-08-26 | 2000-03-02 | Celanese Chem Europe Gmbh | Valeraldehyd und Verfahren zu seiner Herstellung |
DE10149348A1 (de) | 2001-10-06 | 2003-04-10 | Oxeno Olefinchemie Gmbh | Verfahren zur Herstellung von 1-Olefin mit Palladiumcarbenverbindungen |
DE10312829A1 (de) | 2002-06-29 | 2004-01-22 | Oxeno Olefinchemie Gmbh | Verfahren zur Telomerisation von nicht cyclischen Olefinen |
GB0311092D0 (en) * | 2003-05-14 | 2003-06-18 | Bp Chem Int Ltd | Process |
US7141539B2 (en) | 2003-08-11 | 2006-11-28 | Shell Oil Company | Process for producing detergent molecules comprising an ether linkage from butadiene |
ATE401292T1 (de) * | 2003-10-21 | 2008-08-15 | Basf Se | Verfahren zur kontinuierlichen herstellung von aldehyden |
DE102005036040A1 (de) | 2004-08-28 | 2006-03-02 | Oxeno Olefinchemie Gmbh | Verfahren zur Telomerisation von nicht cyclischen Olefinen |
DE102005036039A1 (de) | 2004-08-28 | 2006-03-02 | Oxeno Olefinchemie Gmbh | Verfahren zur Herstellung von 2,7-Octadienylderivaten |
DE102005036038A1 (de) | 2004-08-28 | 2006-03-02 | Oxeno Olefinchemie Gmbh | Verfahren zur Telomerisation von nicht cyclischen Olefinen |
DE102006003618A1 (de) | 2006-01-26 | 2007-08-02 | Oxeno Olefinchemie Gmbh | Verfahren zur Abtrennung von Metall-Komplexkatalysatoren aus Telomerisationsgemischen |
ES2617320T3 (es) | 2008-08-12 | 2017-06-16 | Dow Global Technologies Llc | Un proceso mejorado para la telomerización de butadieno |
-
2009
- 2009-05-14 ES ES09784120T patent/ES2420755T3/es active Active
- 2009-05-14 JP JP2012510320A patent/JP5551239B2/ja not_active Expired - Fee Related
- 2009-05-14 US US13/263,353 patent/US8912346B2/en not_active Expired - Fee Related
- 2009-05-14 CA CA2761768A patent/CA2761768A1/en not_active Abandoned
- 2009-05-14 EP EP09784120.9A patent/EP2431375B1/en not_active Not-in-force
- 2009-05-14 WO PCT/ES2009/070159 patent/WO2010130846A2/es active Application Filing
- 2009-05-14 BR BRPI0924014A patent/BRPI0924014A2/pt not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0461222A1 (en) | 1989-12-29 | 1991-12-18 | Dow Chemical Co | CONTINUOUS PROCESS FOR THE TELOMERIZATION OF CONJUGATED DENEES. |
EP0561779A1 (en) | 1990-12-13 | 1993-09-29 | Dow Chemical Co | METHOD FOR PRODUCING 1 OCT. |
US7030286B2 (en) | 2001-02-08 | 2006-04-18 | Oxeno Olefinchemie Gmbh | Method for producing 1-octene |
US7026523B2 (en) | 2001-06-09 | 2006-04-11 | Oxeno Olefinchemie Gmbh | Method for telomerizing non-cyclic olefins |
US20050038305A1 (en) | 2003-08-11 | 2005-02-17 | Edwards Charles Lee | Process for producing 1-octene from butadiene |
US7425658B2 (en) | 2003-08-11 | 2008-09-16 | Shell Oil Company | Process for producing 1-octene from butadiene |
US8818608B2 (en) | 2012-11-30 | 2014-08-26 | Google Inc. | Engaging and disengaging for autonomous driving |
Also Published As
Publication number | Publication date |
---|---|
CA2761768A1 (en) | 2010-11-18 |
WO2010130846A3 (es) | 2011-03-17 |
US20120046475A1 (en) | 2012-02-23 |
JP5551239B2 (ja) | 2014-07-16 |
EP2431375B1 (en) | 2013-05-01 |
US8912346B2 (en) | 2014-12-16 |
BRPI0924014A2 (pt) | 2016-01-26 |
ES2420755T3 (es) | 2013-08-26 |
EP2431375A2 (en) | 2012-03-21 |
JP2012526780A (ja) | 2012-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Tan et al. | Synthesis and structure of an air-stable organobismuth triflate complex and its use as a high-efficiency catalyst for the ring opening of epoxides in aqueous media with aromatic amines | |
WO2010130846A2 (es) | Complejos de paladio-fosfina para la telomerización de butadieno | |
AU2010338707A1 (en) | Highly active metathesis catalysis selective for ROMP and RCM | |
JP2008526918A (ja) | アシルホスファン、並びにこれらの酸化物及び硫化物の製造方法 | |
Corona-González et al. | A family of rhodium and iridium complexes with semirigid benzylsilyl phosphines: from bidentate to tetradentate coordination modes | |
BRPI0714196A2 (pt) | processo para a produÇço de 1,7-diolefinas substituÍdas ou nço-substituÍdas atravÉs da hidrodimerizaÇço | |
Zhang et al. | Alkali-metal-catalyzed addition of primary and secondary phosphines to carbodiimides. A general and efficient route to substituted phosphaguanidines | |
Bocokić et al. | Bis-(thiosemicarbazonato) Zn (II) complexes as building blocks for construction of supramolecular catalysts | |
Arsenov et al. | (Indenyl) rhodacarboranes. Electronic versus steric effects on the conformation of cyclic ligands | |
Ghalib et al. | Phosphanyl-substituted π-excess σ 2 P heterocycles: Coordination behaviour of 2-di-tert-butylphosphanyl-1-neopentyl-1, 3-benzazaphosphole towards CuCl, HgCl 2 and [Rh (COD) 2] BF 4 | |
Alonso‐Moreno et al. | Well‐Defined Regioselective Iminopyridine Rhodium Catalysts for Anti‐Markovnikov Addition of Aromatic Primary Amines to 1‐Octyne | |
WO2011101504A1 (es) | Nuevos catalizadores a base de fosfina útiles para la telomerización de butadieno | |
Gemel et al. | Synthesis and reactivity of [Ru {HB (pz) 3}{P (C 6 H 11) 3} Cl (OCH 2 R)](pz= pyrazolyl, R= H or Me) | |
JP6696435B2 (ja) | オレフィンの製造方法 | |
MX2012012938A (es) | Nuevo procedimiento de sintesis de la ivabradina y de sus sales de adicion a un acido farmaceuticamente aceptable. | |
McConnell et al. | The synthesis, characterisation and reactivity of 2-phosphanylethylcyclopentadienyl complexes of cobalt, rhodium and iridium | |
Shajari et al. | Vinyltriphenylphosphonium salt-mediated preparation of thiophene-containing electron-poor alkenes from acetylenic esters, 2-thienylmethanol and triphenylphosphine | |
Stromnova et al. | Influence of steric factors on the structures of palladium carbonyl carboxylate clusters: Synthesis and the crystal structure of the hexanuclear cluster Pd 6 (μ-CO) 6 [μ-OCOC (CH 3) 3] 6 | |
CN111943820B (zh) | 一种无合成气的简易高效合成α,β-不饱和醛的方法 | |
RU2376310C2 (ru) | Способ получения 1-фенил-2,3,4,5-тетраалкилбороциклопента-2,4-диенов | |
JP4157968B2 (ja) | ホスフィン酸アルケニル及びその製造方法 | |
Beckmann et al. | Square-planar mesitylenido (triphenylphosphane) nickel (II) complexes containing bidendate N, O-ligands: Changes in catalytic efficiency upon small alterations in the ligand backbone | |
RU2618526C1 (ru) | Способ получения анилиновых комплексов палладия | |
Rosen et al. | Homoleptic phenolate complexes of zirconium (IV): syntheses and structural characterization of the first six coordinate complexes | |
KR100917175B1 (ko) | 신규한 아실포스핀 화합물 및 그의 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09784120 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13263353 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009784120 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2761768 Country of ref document: CA |
|
NENP | Non-entry into the national phase in: |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012510320 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09784120 Country of ref document: EP Kind code of ref document: A2 |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: PI0924014 Country of ref document: BR |
|
ENP | Entry into the national phase in: |
Ref document number: PI0924014 Country of ref document: BR Kind code of ref document: A2 Effective date: 20111018 |