CN1896085B - Synthesis of recyclable chiral metathesis catalysts - Google Patents
Synthesis of recyclable chiral metathesis catalysts Download PDFInfo
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- CN1896085B CN1896085B CN2006100934492A CN200610093449A CN1896085B CN 1896085 B CN1896085 B CN 1896085B CN 2006100934492 A CN2006100934492 A CN 2006100934492A CN 200610093449 A CN200610093449 A CN 200610093449A CN 1896085 B CN1896085 B CN 1896085B
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Abstract
The present invention relates to the synthesis of highly active ruthenium and osmium carbene metathesis catalyst in good yield from readily available starting materials. The catalysts that may be synthesized are of general formula (I) wherein: M is ruthenium or osmium; X and X<1> are independently any anionic ligand; L and L<1> are any neutral electron donor ligand; and, R<12>, R<13> and R<17> are defined in the description. In addition to the ease of synthesis (typically a one-step synthesis), the reactions generally may be run at or above room temperature and the resulting products usually maybe used without extensive post synthesis purification.
Description
The application is that application number is dividing an application of the female case of CN03104200.7.The applying date of this mother's case is on November 10th, 1997; Denomination of invention is " synthesizing of ruthenium or osmium metathesis catalyst ".
The application require on November 15th, 1996 application, by contriver Robert H.Grubbs, Tomas Belderrain and Seth N.Brown with the rights and interests of exercise question for the U.S. Provisional Application the 60/031st, No. 088 (incorporating this paper herein by reference into) of " by the synthetic ruthenium metathesis catalyst of hydrogenation ruthenium complexe ".
According to the permission CHE9509745 file of being authorized by Natural Science Fund, United States Government enjoys some right among the present invention.
Technical field
The present invention relates to the ruthenium or the osmium carbene metathesis catalyst of synthetic high activity.
Background technology
For synthesis of organic scholar or polymer chemistry man, the simple method that is used to generate C-C is of crucial importance and valuable instrument.Having proved an effective especially C-C key generation method is the catalytic olefin metathesis reaction of transition metal.The intensive research of past 20 years make great efforts recently with find to have the height metathesis active and under various functional groups ruthenium still stable, that fully define and osmium carbene coordination catalyst and come to an end.
At United States Patent (USP) the 5th, 312, No. 940 and the 5th, in 342, No. 909 and U.S. Patent application the 08/708th, 057,08/282, in 827 and 08/693, No. 789 (all these documents are all incorporated this paper herein by reference into) these rutheniums and osmium carbene complexes are all had description.Disclosed ruthenium and osmium carbene complexes all have metal center in these patents and application, and its oxidation state is generally+and 2, electronic number is 16, and is pentacoordinate.These catalyzer have following general formula:
Wherein M is ruthenium or osmium, X and X
1Be anion ligand, L and L
1Be neutral electron donor, R and R
1Be the various concrete substituting group that will be described in greater detail below.
United States Patent (USP) the 5th, 312 No. 940 and the 5th, 342, discloses concrete vinyl alkylidene group ruthenium and osmium title complex, wherein neutral electron donor ligand L and L No. 909
1Be triphenylphosphine or diphenyl methyl phosphine.Described in each patent, these catalyzer can be used for the ring opening metathesis polymerization reaction (" ROMP ") of catalysis strain alkene.U.S. Patent application discloses concrete vinyl alkylidene group ruthenium and osmium title complex the 08/708th, No. 057 and the 08/282nd, No. 827, and wherein neutral electron donor ligand L and L1 are for having the substituent phosphine of at least one secondary alkyl or cycloalkyl.These secondary alkylphosphines catalyzer will have more the metathesis activity than corresponding triphenylphosphine catalyzer, and can be used to the various replacement(metathesis)reactions that comprise acyclic and non-strained cyclic olefin of catalysis.U.S. Patent application discloses for the 08/693rd, No. 789 and concrete has had more the active non-vinyl alkylidene complex of metathesis than its vinyl alkylidene group counterpart.Disclosed preferred catalyst is Ben Yajiaji ruthenium and osmium carbene compound in this application.
As United States Patent (USP) the 5th, 312, No. 940 and the 5th, 342, No. 909 disclosed, can pass through the whole bag of tricks, comprises that ruthenium or osmium compound and cyclopropylene or phosphorane react and carry out neutrality or anion ligand exchanges synthesis of vinyl alkylidene group catalyzer.In these previous methods, the preferred method for preparing described catalyzer is to react by the cyclopropylene that makes replacement and dihalide ruthenium or osmium.Regrettably, this method can only be confined to synthesis of vinyl alkylidene group catalyzer (promptly wherein R is hydrogen and R
1Catalyzer for the vinyl groups that replaces) can not be used for directly synthesizing disclosed secondary alkylphosphines catalyzer in 08/282,826 and 08/282,827 application.The synthetic of these secondary alkylphosphines catalyzer also requires to make the triphenylphosphine catalyzer and the secondary alkylphosphines that make from the cyclopropylene reaction to react in ligand exchange reaction.
For part overcomes the shortcoming that cyclopropylene is difficult for acquisition and can only be confined to synthesis of vinyl alkylidene group catalyzer usually, U.S. Patent application the 08/693rd, thus the diazonium paraffinic hydrocarbons and the dihalide ruthenium that disclose for No. 789 by making replacement react the method for synthesizing the alkylidene group coordination catalyst.Disclosed synthetic method can be used to prepare than its corresponding vinyl alkylidene group counterpart and has more the active non-vinyl alkylidene group coordination catalyst of metathesis in this application.As in the method based on cyclopropylene, secondary alkylphosphines catalyzer can not directly synthesize from the reaction of dihalide ruthenium and diazonium paraffinic hydrocarbons.The substitute is secondary alkylphosphines catalyzer must synthesize by ligand exchange.Though the use of diazonium raw material has greatly enlarged the scope that can carry out synthetic ruthenium and osmium carbene catalysts, the danger of handling diazonium compound has on a large scale seriously limited the application of this method in industry and laboratory.In addition, the method for described diazonium requires to synthesize under low temperature (-80 ℃ to-50 ℃ approximately) carries out, and needs to use a large amount of solvents in the final purification of catalyzer.Identical with the synthetic method of using cyclopropylene, secondary alkylphosphines catalyzer must adopt possible consuming time and expensive and may cause synthesizing than the multistep ligand exchange method of low production yield.
In cyclopropylene and diazonium synthetic method, all must adopt multistep, the synthetic secondary alkylphosphines catalyzer of ligand exchange method.Because secondary alkylphosphines catalyzer has more the metathesis activity than triphenylphosphine catalyzer,, so it can have wider industrial application, needing multistep synthetic in these situations can be the limitation of a harshness.
Though various previous methods are enough to prepare the ruthenium and the osmium carbene catalysts of a great deal of, but, therefore exist a kind of with simple, safety and synthetic these compounds of inexpensive method needs with abundant its potential of exploitation along with of the continuous increase of these catalyzer in science and technology and industrial number of applications.
Summary of the invention
The present invention proposes this needs, and simple, the safe and cheap synthetic ruthenium and the method for osmium carbene catalysts are provided.Generally speaking, provide the one-step synthesis that adopts raw material stable, that obtain easily.These methods can obtain good product yield and need not expensive complex apparatus.In addition, can also synthesis of vinyl and non-vinyl alkylidene group catalyzer.Moreover these methods can also make the purification of synthetic back become unnecessary mode and produce catalyzer.
In one aspect of the invention, provide a kind of synthetic method with ruthenium and osmium carbene coordination catalyst of following formula:
Wherein M is ruthenium or osmium, X and X
1For any anion ligand, be preferably muriate, and L and L
1Be any neutral electron donor ligand, be preferably the tricyclic alkyl phosphine, R
1Can be any in the various substituting groups that will be described in detail below.In preferred catalyzer, R
1Be phenyl.In this embodiment of the present invention, make compound with following formula:
(n=1 or 2) and formula R
1C (X) (X
1) compound of H contacts in the presence of alkene to obtain required ruthenium or osmium carbene coordination catalyst.
In another aspect of the present invention, provide the method that is used for synthesizing vinyl alkylidene group catalyzer with following formula:
Wherein M, X, X
1, L and L
1As mentioned above, and R
12, R
13And R
17Can be identical, also can be different, and can be any in the various substituting groups that will be described in detail below.In preferred catalyzer, R
12And R
13Being identical, all is methyl, and R
17Be hydrogen.In this embodiment of the present invention, make following formula: compound:
(n=1 or 2) and following formula: compound:
Contact to obtain required ruthenium or osmium carbene coordination catalyst.
Perhaps, described alkynes can be general formula R
17C ≡ CCR
12R
13R ', wherein R ' is a hydroxyl.In this variant, described alkynes and two hydrogen complexs are reacted, but react to generate above-mentioned vinyl alkylidene group catalyzer with HX subsequently.Yet in another variant of this reaction scheme, working as R ' is hydrogen or C
1-C
20During alkyl, it is (X) (X that described method has generated general formula
1) (L) (L
1) M=C (R
17) (CH
2CR
12R
13R ') non-vinyl alkylidene group catalyzer.
Aspect another, provide the method for synthetic following formula: compound of the present invention:
Wherein M, X, X
1, L and L
1As mentioned above, and R
14, R
15And R
16Can be any in the various substituting groups that to be described in detail below.In this embodiment of the present invention, make following formula: compound:
The compound of (n=1 or 2) and following formula:
Contact to obtain required ruthenium or osmium carbene coordination catalyst.
The general description of catalyzer
Method of the present invention can be used to synthetic comprise ruthenium or osmium metal center (be in+2 oxidation state, electronic number be 16) and be the ruthenium of pentacoordinate or osmium carbene coordination catalyst.More particularly, method of the present invention can be used to synthetic following formula: compound:
Wherein:
M is ruthenium or osmium;
X and X
1Be any anion ligand independently;
L and L
1Be any neutral electron donor ligand;
R and R
1Each is a kind of in hydrogen or the following substituting group: C
1-C
20Alkyl, C
2-C
20Alkenyl, C
2-C
20Alkynyl, aryl, C
1-C
20Carboxylicesters, C
1-C
20Alkoxyl group, C
2-C
20Alkenyloxy, C
2-C
20Alkynyloxy group, aryloxy, C
2-C
20Alkoxy carbonyl, C
1-C
20Alkylthio, C
1-C
20Alkyl sulphonyl and C
1-C
20Alkyl sulphinyl.Randomly, described substituting group can be selected from C by one or more
1-C
5Alkyl, C
1-C
5The substituting group of alkoxyl group and aryl replaces.When the substituting group aromatic yl group is phenyl, can also further be selected from halogen, C by one or more
1-C
5Alkyl or C
1-C
5The substituting group of alkoxyl group replaces.In addition, R
1Substituting group can also comprise one or more functional group.Suitable functional group's example comprises (but being not limited thereto): hydroxyl, thiol, thioether, ketone, aldehyde, ester, ether, amine, imines, acid amides, nitro, carboxylic acid, disulphide, carbonic ether, isocyanic ester, carbodiimide, carbonylic alkoxy, carbamate and halogen.
In preferred embodiments, the R substituting group is a hydrogen, and R
1Substituting group is one of following substituting group: (1) hydrogen; (2) C
1-C
20Alkyl; (3) C
2-C
20Alkenyl; (4) aryl; (5) be selected from aryl, halogen, hydroxyl, C with one or more
1-C
5Alkoxyl group and C
2-C
5The C that the group of alkoxy carbonyl replaces
1-C
20Alkyl; (6) be selected from C with one or more
1-C
5Alkyl, aryl, hydroxyl, C
2-C
5The aryl that the group of alkoxyl group, amino, nitro and halogen replaces.In a more preferred embodiment, R
1Substituting group be phenyl or be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl the phenyl that replaces of group.In the most preferred embodiment, R
1Substituting group is a phenyl.
L and L
1Ligand can be identical, also can be different, can be any neutral electron donor ligand.In preferred embodiments, L and L
1Ligand can be identical, also can be different, can be phosphine, sulfonated phosphine, phosphorous acid ester, phosphinate (phosphinite), phosphonic acid ester (phosphonite), arsine,
, ether, amine, acid amides, imines, sulfoxide, carboxyl, nitrosyl radical, pyridine and thioether.In a more preferred embodiment, L and L
1Ligand can be identical, also can be different, be formula PR
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, R
4And R
5Identical or different, can be aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group.In the most preferred embodiment, L and L
1Ligand can be identical, also can be different, for-P (cyclohexyl)
3,-P (cyclopentyl)
3Or-P (sec.-propyl)
3
X and X
1Ligand can be identical, also can be different, can be any anion ligand.In preferred embodiments, X and X
1Ligand can be identical, also can be different, can be one of halogen, hydrogen or following group: C
1-C
20Alkyl, aryl, C
1-C
20Alkoxide, aromatic oxide, C
3-C
20Alkyl diketone hydrochlorate (diketonate), aryl diketone hydrochlorate, C
1-C
20Carboxylate salt, aryl or C
1-C
20Alkylsulfonate, C
1-C
20Alkylthio, C
1-C
20Alkyl sulphonyl or C
1-C
20Alkyl sulphinyl.Each group can randomly be used C
1-C
5Alkyl, halogen, C
1-C
5Alkoxyl group or phenyl group replace.Phenyl group can randomly be used halogen, C conversely
1-C
5Alkyl or C
1-C
5Alkoxyl group replaces.In a more preferred embodiment, X and X
1Ligand can be identical, also can be different, and can be muriate, bromide, iodide, hydrogen or be selected from following group: benzoate, C
1-C
5Carboxylate salt, C
1-C
5Alkyl, phenoxy group, C
1-C
5Alkoxyl group, C
1-C
5Alkylthio, aryl and C
1-C
5Alkylsulfonate.Each group can randomly be used C
1-C
5Alkyl or phenyl replaces.Phenyl group can randomly be used halogen, C
1-C
5Alkyl or C
1-C
5Alkoxyl group replaces.In embodiment preferred more, X and X
1Ligand can be identical, also can be different, can be muriate, CF
3CO
2, CH
3CO
2, CFH
2CO
2, (CH
3)
3CO, (CF
3)
2(CH
3) CO, (CF
3) (CH
3)
2CO, PhO, MeO, EtO, tosylate, mesylate or trifluoromethyl sulfonic acid.In the most preferred embodiment, X and X
1It all is muriate.
Most preferred catalyzer is
With
Wherein Cy is cyclohexyl or cyclopentyl, and Me is a methyl.
Above-mentioned catalyzer is various functional groups, comprises that under the existence of hydroxyl, thiol, ketone, aldehyde, ester, ether, amine, imines, acid amides, nitro, carboxylic acid, disulphide, carbonic ether, isocyanic ester, carbodiimide, carbonylic alkoxy and halogen be stable.Therefore, the raw material of following reaction and product can contain one or more these functional groups and can not make poisoning of catalyst.In addition, catalyzer also is stable in the presence of the mixture of aqueous, organic or protonic solvent such as aromatic hydrocarbon, hydrochloric ether, ether, aliphatic hydrocrbon, alcohol, water or above-mentioned various materials.Therefore, following various reaction can be carried out in one or more these solvents and catalyst product is poisoned.
General synthetic schemes
The present invention relates to be used for synthetic above-mentioned ruthenium and osmium carbene catalysts, can get rid of the new way of the variety of issue relevant with previous the whole bag of tricks.Unless clear and definite explanation is arranged, otherwise the various substituting groups of catalyzer as mentioned above.
We find, adopt acquisition easily and stable carbene and source metal to synthesize ruthenium and osmium carbene catalysts in the mode of one-step synthesis.As what will be below be described in detail, method of the present invention is feasible can synthesize ruthenium and osmium carbene coordination compound and need not use unsettled raw material, and can adopt the reaction that can carry out under room temperature or the above temperature of room temperature.Present method also makes and can prepare the catalyzer that has different anions and neutral electron donor ligand and have different substituents on the carbene carbon atom.Method of the present invention generally can obtain surpassing the carbene complexes of yield 90%, and the sufficiently pure catalyzer that makes gained of these title complexs can directly use and need not carry out the step of purifying in synthetic in a large number back.As described in the background parts, all these aspects of the present invention have many important advantages than existing the whole bag of tricks.
We have found that three can be synthesized described catalyzer by it, comprise the synthesis path of ruthenium or osmium two hydrogen complexs and simple organic compound.Two kinds of common versions of two hydrogen complexs are M (H)
2(H
2)
nL
1L and M (H) X (H
2)
nL
1L, wherein M, X, L and L
1As defined above, n is 1 or 2.Because first kind dihydro-compound is easy to disassociation, therefore single dihydro (n=1) title complex and two (dihydro) (n=2) title complex be interchangeable basically.Generally speaking, two (dihydro) title complex is in the great majority in the solid form of title complex, and single (dihydro) title complex then is in the great majority in solution.
In article one route of synthesis, two hydrogen complexs are M (H)
2(H
2)
nL
1L, the paraffinic hydrocarbons of organic compound for replacing, it comprises X, the X that has catalyzer
1And R
1Substituent carbon atom.In the second route of synthesis, two hydrogen complexs are (X) (H of M (H)
2)
nL
1L, the alkynes of organic compound for replacing.In the 3rd route of synthesis, two hydrogen complexs are (X) (H of M (H)
2)
nL
1L, organic compound is alkene (alkene).
For the purpose of expressing for the sake of simplicity and easily, various concrete reaction conditionss and step are summarized in the last testing sequence part.
The paraffinic hydrocarbons approach
This embodiment of the present invention can be summarized in the following reaction process 1:
Reaction process 1
This embodiment comprises the method that is used for synthetic following formula: compound:
It is included under the existence of alkene, makes the compound of following formula:
With formula R
1C (X) (X
1) compound of H contacts.M, R
1, X, X
1, L and L
1Such as in catalyst member definition, n is 1 or 2.
In the preferred embodiment of paraffinic hydrocarbons method, M is a ruthenium; L and L
1Each is formula PR for a ligand
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, and R
4And R
5Each is aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group; X and X
1Each is halogen, benzoate, C for a ligand
1-C
5Carboxylate salt, C
1-C
5Alkyl, C
1-C
5Alkoxyl group, C
1-C
5Alkylthio, aryl or C
1-C
5Alkylsulfonate comprises muriate, bromide, iodide, CF
3CO
2, CH
3CO
2, CFH
2CO
2, (CH
3)
3CO, (CF
3)
2(CH
3) CO, (CF
3) (CH
3)
2CO, PhO, MeO, EtO, tosylate, mesylate or trifluoromethyl sulfonic acid; R
1Be hydrogen or replacement or unsubstituted C
1-C
20Alkyl or aryl, wherein substituted radical is selected from aryl, halogen, hydroxyl, amino, nitro, C
1-C
5Alkyl, C
1-C
5Alkoxyl group and C
2-C
5Alkoxy carbonyl; Alkene is that a kind of alkene that is not easy to carry out replacement(metathesis)reaction or produces the metathesis identical type.
In particularly preferred embodiments, L and L
1Ligand each be-P (cyclohexyl)
3,-P (cyclopentyl)
3Or-P (sec.-propyl)
3X and X
1Each is halogen for a ligand; R
1Substituting group is for replacing or unsubstituted aromatics, wherein the group of Qu Daiing be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl; And alkene is tetrahydrobenzene or vinylbenzene.
In the most preferred embodiment, L and L
1Ligand each be-P (cyclohexyl)
3Or-P (cyclopentyl)
3X and X
1Each is muriate for a ligand; R
1Substituting group is for replacing or unsubstituted phenyl, wherein the group of Qu Daiing be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl; And alkene is tetrahydrobenzene.
As noted above like that, the alkene of preferably selecting to be used for this route of synthesis is the alkene that is not easy to carry out replacement(metathesis)reaction.When use has active alkene of metathesis such as ethene,, therefore can't obtain required product with high yield owing between alkene and product catalyzer, have the potential replacement(metathesis)reaction.For example, as Ru (H)
2(H
2)
2(PCy
3)
2With PhCHCl
2Or Cl
2CHCO
2Me reacts in the presence of ethene, generated and non-required benzylidene and ester carbene, but methylene radical title complex.The generation of the observations of the carbene proton resonance (δ is respectively 20.59 and 20.15) of intermediate and vinylbenzene and methyl methacrylate has been confirmed that this is because the benzylidene of ethene and gained and ester carbene take place due to the follow-up replacement(metathesis)reaction.
Yet when using more SA alkene such as tetrahydrobenzene, this follow-up replacement(metathesis)reaction is eliminated basically.For example, as Ru (H)
2(H
2)
2(PCy
3)
2With PhCHCl
2, Cl
2CHCO
2Me or CH
2Cl
2React in the presence of tetrahydrobenzene, corresponding carbene generates with good yield.When passing through
31P NMR (adopting triphenyl phosphine oxide as internal standard substance) is when monitoring these reactions, and the NMR experiment shows that these transformation efficiencys are quantitative basically.
The route of synthesis of alkynes
A scheme of the embodiment of the present invention can be summarized in the following reaction process 2:
Reaction process 2
This embodiment comprises the method that is used for synthetic following formula: compound:
It comprises the compound that makes following formula:
Compound with following formula:
The step that contacts, wherein M, X, X
1, L and L
1Such as preceding in catalyst member definition.
Perhaps, described alkynes can be general formula R
17C ≡ CCR
12R
13R ', wherein R ' is a hydroxyl.In this changed, described alkynes and two hydrogen complexs reacted as mentioned above, but react the above-mentioned catalyzer of generation with HX thereafter.Yet in another variation of this reaction process, working as R ' is hydrogen or C
1-C
20During alkyl, it is (X) (X that described method has made general formula
1) (L) (L
1) M=C (R
17) (CH
2CR
12R
13R ') catalyzer.
In another scheme, still the variable of Bao Chiing is: n is 1 or 2; R
17Be hydrogen, aryl or C
1-C
18Alkyl; R
12And R
13Each is one of hydrogen or following substituted radical: C
1-C
18Alkyl, C
2-C
18Alkenyl, C
2-C
18Alkynyl, aryl, C
1-C
18Carboxylicesters, C
1-C
18Alkoxyl group, C
2-C
18Alkenyloxy, C
2-C
18Alkynyloxy group, aryloxy, C
2-C
18Alkoxy carbonyl, C
1-C
18Alkylthio, C
1-C
18Alkyl sulphonyl and C
1-C
18Alkyl sulphinyl; Wherein substituted radical can be selected from C with one or more
1-C
5Alkyl, C
1-C
5The group of alkoxyl group and aryl replaces.When the substituted aryl group is phenyl, can also further be selected from halogen, C with one or more
1-C
5Alkyl or C
1-C
5The group of alkoxyl group replaces.In addition, R
12And R
13Substituted radical can comprise that also one or more are selected from the functional group of hydroxyl, thiol, thioether, ketone, aldehyde, ester, ether, amine, imines, acid amides, nitro, carboxylic acid, disulphide, carbonic ether, isocyanic ester, carbodiimide, carbonylic alkoxy, carbamate and halogen.
In the preferred embodiment of alkynes method, M is a ruthenium; L and L
1Each is formula PR for a ligand
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, R
4And R
5Each is aryl, C
1-C
10Primary alkyl, stretch the alkyl or cycloalkyl group; X and X
1Each is halogen, benzoic ether, C for a ligand
1-C
5Carboxylate salt, C
1-C
5Alkyl, C
1-C
5Alkoxyl group, C
1-C
5Alkylthio, aryl or C
1-C
5Alkylsulfonate comprises muriate, bromide, iodide, CF
3CO
2, CH
3CO
2, CFH
2CO
2, (CH
3)
3CO, (CF
3)
2(CH
3) CO, (CF
3) (CH
3)
2CO, PhO, MeO, EtO, tosylate, mesylate and fluoroform sulphonate; R
12And R
13Each is for replacing or unsubstituted C
1-C
18Alkyl or aryl, wherein substituted radical is selected from aryl, halogen, hydroxyl, amino, nitro, C
1-C
5Alkyl, C
1-C
5Alkoxyl group and C
2-C
5Alkoxy carbonyl; And R
17Be hydrogen or methyl.
In particularly preferred embodiments, L and L
1Ligand each be-P (cyclohexyl)
3,-P (cyclopentyl)
3Or-P (sec.-propyl)
3X and X
1Each is halogen for a ligand; R
12And R
13Each is for replacing or unsubstituted aromatics, wherein the group of Qu Daiing be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl; And R
17Be hydrogen.
In the most preferred embodiment, L and L
1Ligand each be-P (cyclohexyl)
3Or-P (cyclopentyl)
3X and X
1Each is muriate for a ligand; R
12And R
13Each for replace or unsubstituted phenyl or group of wherein replacing be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl; And R
17Be hydrogen.
This embodiment of the present invention is a kind of method that extremely effectively is used for synthesizing with a still synthesis method basically above-mentioned ruthenium and osmium vinyl alkylidene group catalyzer.Because of carrying out the separation of metal complexes, it is generated, and then react to obtain required product with the alkynes that replaces.
Except synthesizing easily, the present embodiment can also obtain high product yield.For example, (Cl) (H of hydrogen (hydrid0) chloride complexes Ru (H)
2) (PCy
3)
2React fast in methylene dichloride with the commercially available 3-chloro-3-methyl isophthalic acid-butine that gets, generate carbene complexes Ru (Cl) with 95.2% independent yield
2(PCy
3)
2(=CH-CH=Me
2). work as employing
1We found when H NMR monitored this reaction, were reflected in 10 minutes and just finished (even under-30 ℃). the integration of internal standard substance shows that yield is about 99.5% relatively under this temperature.
We find that the reaction of carrying out to other alkynes, particularly propargylic halide is similar.Ruthenium carbene Ru (Cl
2) (PCy
3)
2(=CH-CH=(CH
2)
5) and Ru (Cl
2) (PCy
3)
2(=CH-CH=CHPh) generates from the alkynes of correspondence with quantitative yield basically, though the ruthenium of trace (IV) title complex Ru (H)
2(Cl)
2(PCy
3)
2Generate as by product.Interesting is that the amount of by product increases with the minimizing of the spatial volume of alkynes.For example, the HC ≡ CCH (CH of monomethyl replacement
3) Cl generated carbene product Ru (Cl with 8: 1 ratio
2) (PCy
3)
2(=CH-CH=Me) and by product Ru (H)
2(Cl)
2(PCy
3)
2, and HC ≡ CCH
2Cl has generated carbene product Ru (Cl) with 0.8: 1 ratio
2(PCy
3)
2(=CH-CH=CH
2) and by product.
Change the amount that X also can have influence on the by product that is generated.For example, the propargyl bromide HC ≡ CC (Me) of dimethyl-replacement
2Br obtains 30: 1 required blended halogen carbene RuClBr (PCy
3)
2(=CH-CH=CMe
2) and blended halogen Ru (IV) kind RuClBr (H)
2(PCy
3)
2, this basically with adopt corresponding chlorinated thing HC ≡ CC (Me)
2200: 1 the ratio of ratio that Cl saw is different.Result optimal selects uncle's propargylic halide, particularly uncle's propargyl chloride.
In addition, if solvent changes benzene or toluene into from methylene dichloride, then the ratio of carbene and Ru (IV) by product can be increased significantly.By changing solvent, product and by product HC ≡ CCH (CH
3) Cl and HC ≡ CCH
2The ratio of Cl was increased to 30: 1 and 37: 1 from original 8: 1 and 0.8: 1 respectively.
When L and L1 group are triaryl phosphine, replace the dihydro kind in the initial title complex to make amendment to reaction process 2 by adopting the 3rd phosphine ligand.According to the kind of initial dihydro, the hydrogen complex of gained will be (Cl) (H of M (H)
2) LL
1L
2Or (Cl) LL of M (H)
1L
2Form.In all others, M, X, X
1, R
12, R
13And R
17For as mentioned above.Reaction process 2A has shown a scheme of this embodiment.
Reaction process 2A
The alkene route of synthesis
This embodiment of the present invention can be summarized in the following reaction process 3.
Reaction process 3
This embodiment comprises the method that is used for synthetic following formula: compound:
This method comprises makes following formula: compound:
With following formula: compound:
The step that contacts, wherein M, X, X
1, L and L
1Such as in catalyst member definition; N is 1 or 2; R
14, R
15And R
16Each is one of hydrogen or following substituted radical: C
1-C
19Alkyl, C
2-C
19Alkenyl, C
2-C
19Alkynyl, aryl, C
1-C
19Carboxylicesters, C
1-C
19Alkoxyl group, C
2-C
19Alkenyloxy, C
2-C
19Alkynyloxy group, aryloxy, C
2-C
19Alkoxy carbonyl, C
1-C
19Alkylthio, C
1-C
19Alkyl sulphonyl and C
1-C
19Alkyl sulphinyl; Wherein substituted radical can be selected from C with one or more
1-C
5Alkyl, C
1-C
5The group of alkoxyl group and aryl replaces.When the substituted aryl group is phenyl, also can further be selected from halogen, C with one or more
1-C
5Alkyl or C
1-C
5The group of alkoxyl group replaces.In addition, R
14, R
15And R
16Substituted radical can comprise that also one or more are selected from the functional group of hydroxyl, thiol, thioether, ketone, aldehyde, ester, ether, amine, imines, acid amides, nitro, carboxylic acid, disulphide, carbonic ether, isocyanic ester, carbodiimide, carbonylic alkoxy, carbamate and halogen.
In the preferred embodiment of alkene synthetic method, M is a ruthenium; L and L
1Each is formula PR for a ligand
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, R
4And R
5Each is aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group; X and X
1Each is halogen, benzoate, C for a ligand
1-C
5Carboxylate salt, C
1-C
5Alkyl, C
1-C
5Alkoxyl group, C
1-C
5Alkylthio, aryl or C
1-C
5Alkylsulfonate comprises muriate, bromide, iodide, CF
3CO
2, CH
3CO
2, CFH
2CO
2, (CH
3)
3CO, (CF
3)
2(CH
3) CO, (CF
3) (CH
3)
2CO, PhO, MeO, EtO, tosylate, mesylate and fluoroform sulphonate; R
14And R
15Each is for replacing or unsubstituted C
1-C
18Alkyl or aryl, wherein substituted radical is selected from aryl, halogen, hydroxyl, amino, nitro, C
1-C
5Alkyl, C
1-C
5Alkoxyl group and C
2-C
5Alkoxy carbonyl; And R
16Be hydrogen.
In particularly preferred embodiments, L and L
1Ligand each be-P (cyclohexyl)
3,-P (cyclopentyl)
3Or-P (sec.-propyl)
3X and X
1Each is halogen for a ligand; R
14And R
15Each is for replacing or unsubstituted aromatics, wherein the group of Qu Daiing be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl; And R
16Be hydrogen.
In the most preferred embodiment, L and L
1Ligand each be-P (cyclohexyl)
3Or-P (cyclopentyl)
3X and X
1Each is muriate for a ligand; R
14And R
15Each for replace or unsubstituted phenyl or group of wherein replacing be selected from muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl; And R
16Be hydrogen.
As L and L
1When group is triaryl phosphine, replace the dihydro kind in the initial title complex to make amendment to reaction process 3 by adopting the 3rd phosphine ligand.According to the kind of initial dihydro, the hydrogen complex of gained will be (Cl) (H of M (H)
2) LL
1L
2Or (Cl) LL of M (H)
1L
2Form.In all others, M, X, X
1, R
14, R
15And R
16For as mentioned above.Reaction process 3A has shown a scheme of this embodiment.
Reaction process 3A
Because as if the efficient of alkene approach less than other two kinds of methods, therefore, the method for general preference chain alkane approach when the synthetic non-vinyl alkylidene group catalyzer of desire.For example, (Cl) (H of Ru (H)
2) (PCy
3)
2React with vinylchlorid and to obtain required carbene Ru (Cl)
2(PCy
3)
2(=CHCH
3), alkylidene complex Ru (Cl)
2(PCy
3)
2(=CH
2) and ruthenium (IV) by product Ru (H)
2(Cl)
2(PCy
3)
2Alkylidene complex be required subsequently carbene product with vinylchlorid between result's (while also causes the generation of 1-propenyl chloride) of replacement(metathesis)reaction takes place to intersect.Yet, even total the carbene product of considering, the ratio of carbene and Ru (IV) by product also is 2.1: 1 of medium level.Different with the approach of alkynes, the spatial volume (to suppress β-addition) that is increased in the β-carbon of alkene does not increase the yield of carbene.
Synthetic Ru (X)
2(L)
2(=CHR
1) another kind of method
In the method, use Ru (1, the 5-cyclooctadiene) (cyclo-octatriene) (after this being called " Ru (COD) (COT) ") to replace two hydrogen complexs with synthetic general formula R u (X)
2(L)
2(=CHR
1) catalyzer, wherein:
R
1By before in catalyst member, being defined;
X is a halogen; With
L is formula PR
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, and R
4And R
5Be independently selected from aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group.In preferred embodiments, X is a muriate, and L is P (cyclohexyl)
3, P (cyclopentyl)
3Or P (sec.-propyl)
3
Under the room temperature, in the presence of phosphine, L, with R
1CHX
2Join Ru (COD) (COT) in the solution in suitable solvent to generate product Ru (X)
2(L)
2(=CHR
1).The illustrative example of suitable solvent comprises (but being not limited thereto) toluene, benzene and methylene dichloride.
The general mechanism of reaction comprises two steps: the oxidation of alkyl dihalide adds in Ru (O) kind, then cancellation α-halogenide.The example of an illustrative of this method is shown in the reaction process 4, obtains the RuCl of 50% product yield
2(PCy
3)
2(=CHPh).
Reaction process 4
Yet this route of synthesis exists two potential limitations.At first, though reported and can obtain good yield, synthetic Ru (COD) is (COT) very difficult and loaded down with trivial details.Secondly, generation is various
Salt such as PCy
3CHClR
1+Cl
-, as X=Cl and L=PCy
3Shi Keneng has limited the feasibility that this approach is used for some carbene catalysts potentially.For example, though RuCl
2(PCy
3)
2(=CHPh) and RuCl
2(PCy
3)
2(=CH
2) can synthesize by this way, but can not adopt Cl
2CHCO
2Me synthesizes RuCl
2(PCy
3)
2(=CHCO
2Me), because owing to side reaction has generated
Salt [Cy
3PCHClCHCO
2Me]
+Cl
-
Synthetic RuCl
2(PCy
3)
2The another kind of method of (=CHPh)
This another kind approach is a variant of above-mentioned paraffinic hydrocarbons approach, and it has utilized potential replacement(metathesis)reaction between alkene used in the reaction and the carbene product.At first, use the reaction of above-mentioned paraffinic hydrocarbons, in the presence of alkene is cinnamic by making Ru (H)
2(H
2)
2(PCy
3) and Cl
2CHCO
2Me reacts and generates RuCl
2(PCy
3)
2(=CHCO
2Me).The carbene RuCl that is generated
2(PCy
3)
2(PCy
3) (=CHCO
2Me) generate final product RuCl through carrying out replacement(metathesis)reaction with vinylbenzene subsequently
2(PCy
3)
2(=CHPh).
Embodiment
Ru (H)
2(H
2)
2(PCy
3)
2Synthetic
Generally speaking, except as otherwise noted, otherwise all solvents all pass through degassing processing before using.
With [RuCl
2(COD)]
x(6.0 grams, 21.43 mmoles), PCy
3(12.0 gram, 42.86 mmoles) and NaOH (7.2 restrain) are positioned in 500 milliliters the Fisher-Porter bottle.[RuCl
2(COD)]
XBe RuCl
3Polymerization title complex with COD reaction gained.Add the sec-butyl alcohol (250 milliliters) after outgasing, suspension is at H
2(2 normal atmosphere) be pressurization and heating under 90 ℃ down.After pressurizeing several times again to described system, showing has H
2Absorb.The reaction mixture stirring is spent the night.At H
2Make described system be cooled to room temperature under the pressure.Obtain the pale yellow crystals throw out.Following all operations is all at H
2Carry out under the pressure.Water (30 milliliters) is joined in the gained mixture, and mixture filters through the frit strainer then.Filtrate water (30 milliliters/time) washed twice, usefulness methanol wash (twice, 20 milliliter/time).Solid is at H
2Carry out drying under the air-flow.Obtain 11.8 gram (83% yield) lurid crystalline compounds.The NMR spectrum of this product with previous those in the literature to Ru (H)
2(H)
2(PCy
3)
2Report identical.
RuCl
2(PCy
3)
2Synthesizing of (=CHPh)
Tetrahydrobenzene (1.5 milliliters, 14.80 mmoles) is joined Ru (H)
2(H
2)
2(PCy
3)
2(1.0 grams, 1.50 mmoles) are in the suspension of pentane (40 milliliters).Obtain yellow solution after 2 minutes, generate the light-yellow precipitate thing after 15 minutes.Reaction mixture was stirred 1 hour.Under vacuum, remove various volatile components. add pentane in this solid.Add PhCHCl
2Obtain red liquid after (0.4 milliliter, 3.11 mmoles), with this liquid agitation 45 minutes.Evaporate solvent, resistates washs (three times, 10 milliliters/time) with cold methanol.Obtain 0.75 gram (61% yield) red-purple solid, its NMR spectrum and compound R uCl
2(PCy
3)
2The spectrum of (=CHPh) is identical.
RuCl
2(PCy
3)
2(=CH
2) and RuCl
2(PCy
3)
2(=CHCO
2Synthesizing Me)
As the above-mentioned RuCl for preparing in a similar fashion
2(PCy
3)
2(=CH
2) and RuCl
2(PCy
3)
2(=CHCO
2Me), difference is to add respectively Cl
2CH
2And Cl
2CHCO
2Me is as dihalide compound.At synthetic RuCl
2(PCy
3)
2(=CH
2) situation in because reaction slow (by the NMR monitoring) is therefore adding Cl
2CH
2After reaction mixture stirred spend the night.
RuCl
2(PCy
3)
2(=CHCO
2Me) selectivity spectroscopic data:
1HNMR (300MHz, C
6D
6: δ 20.15 (s, Ru=CH), 3.53 (s, CO
2CH
3);
13CNMR (125.71, CD
2Cl
2,-30 ℃), δ 276.37 (t, and J (P, C)=5.1Hz, Ru=CH), 178.69 (s, CO
2Me), 50.84 (s, CO
2CH
3);
31P (161.9MHz, C
6D
6) δ 38.66 (s, PCy
3); 1721 centimetres of IR (paraffin) γ
-1(C=O-(ester)).
Ru (H)
2(H
2)
2(PCy
3)
2+ vinylbenzene+α, α-toluene dichloride
Vinylbenzene (0.2 milliliter, 1.7 mmoles) is joined Ru (H)
2(H)
2(PCy
3)
2(0.54 gram, 0.77 mmole) is in the solution of toluene (20 milliliters).After 15 minutes, with α, α-toluene dichloride (0.1 milliliter) joins in the gained dark red solution.Reaction mixture was stirred 45 minutes.Remove and to desolvate, the red-purple solid is separated, confirm that through NMR this solid is Ru (=CHPh) Cl with methyl alcohol and washing with acetone resistates
2(PCy
3)
2Yield is 25%.Wherein said alkene is the paraffinic hydrocarbons-reaction intermediate of tetrahydrobenzene: Ru (tetrahydrobenzene)
2(H
2) (PCy
3)
2Separation and utilization
Tetrahydrobenzene (5 milliliters) is joined Ru (H)
2(H
2)
2(PCy
3)
2In (1.1 grams, 1.65 mmoles).Observe the generation red solution, and have lurid solid precipitation to come out immediately.Add pentane (20 milliliters), suspension was stirred 2 hours.By the filtering separation solid.Yield: 81%.
1H is at C
6D
6In :-5. (br s, 2H, H
2), 1.2-2.0 (m, 66H, PCy
3), 3.0 (s, 1H, CH
Alkene), 20.1ppm;
31P{
1H}59ppm (s).
With R
1CHX
1X is added to this intermediate Ru (tetrahydrobenzene)
2(H
2) (PCy
3)
2In, obtain ruthenium catalyst RuX
1X (PCy
3)
2(R
1).As a result, concrete intermediate Ru (tetrahydrobenzene)
2(H
2) (PCy
3)
2Or general formula R u (alkene)
2(H
2) (PCy
3)
2Any intermediate can replace Ru (H)
2(H
2)
2(PCy
3)
2And the alkene in the paraffinic hydrocarbons reaction path.
For example, by with α, α-toluene dichloride (5 microlitre) joins C
6D
6Ru (tetrahydrobenzene) in (0.5 milliliter)
2(H
2) (Cy
3P)
2(20 milligrams; 2.6810-2 the (=CHPh) Cl of synthetic Ru in solution mmole)
2(PCy
3)
2The solution becomes laking,
1H and
31P{
1H) NMR spectrum shows that Quantitative yield is Ru (=CHPh) Cl
2(PCy
3)
2Similarly, by methyl dichloroacetate (5 microlitre) is joined C
6D
6Ru (tetrahydrobenzene) in (0.5 milliliter)
2(H
2) (PCy
3)
2(20 milligrams; 2.6810-2 the (=CHCOOMe) Cl of synthetic Ru in solution mmole)
2(PCy
3)
2The solution becomes purple, and
1H and
31P NMR spectrum shows that Quantitative yield is Ru (=CHCOOMe) Cl
2(PCy
3)
2 1H is at C
6D
6In: 1.2-2.7 (m, 66H, PCy
3), 3.5 (s, 3H, COOCH
3), 20.1ppm (s, CH carbene unit);
31P{
1H} is at C
6D
6In: 38ppm (s, PCy
3).
Ru (H) is (H (Cl)
2)
2(PCy
3)
2Synthetic
With [RuCl
2(COD)]
X(4.00 grams, 14.28 mmoles) and tricyclohexyl phosphine (8.46 grams, 97% from Strem, 29.26 mmoles) are positioned over 500 milliliters and are equipped with in the manometric high pressure system.Sec-butyl alcohol after 200 milliliters of degassings and triethylamine (1.99 milliliters, 14.28 mmoles) are joined in this system.Then this system is placed under the vacuum, and clean with hydrogen.After the cleaning, 80 ℃ (totally 20 hours) are pressurizeed, sealed and be heated to described system with 1.5 atmospheric hydrogen.When pressure is reduced to normal atmosphere when following,, carried out once every 20-30 minute approximately several hours of beginning with system cooling and pressurization again.
Ru (H) is (H (Cl)
2)
2(PCy
3)
2Also can in being equipped with the Strauss flask of teflon valve, suitable size, heavy-walled finish preparation.According to the scale of reaction and the size of flask, described system is pressurizeed with hydrogen behind several hrs again.Perhaps reaction can be by under atmospheric pressure blasting H
2Gas carries out.
By the degassing methyl alcohol that described system is cooled to room temperature and adds certain volume (200 milliliters) to guarantee to precipitate the separation of the orange solids of finishing air-sensitive fully.Cross filter solid, with methanol wash (3 * 50 milliliters), and carry out drying in a vacuum, the Ru (H) that obtains 9.26 grams 93% is (H (Cl)
2)
2(PCy
3)
2
RuCl
2(PCy
3)
2(=CH-CH=CMe
2) synthetic
Method A: the approach of alkynes
With (Cl) (H of Ru (H)
2) (PCy
3)
2(1.00 gram, 1.43 mmoles) are dissolved in 30 milliliters and are cooled in-30 ℃ the methylene dichloride under inert atmosphere, add 3-chloro-3-methyl isophthalic acid-butine (170 microlitres, 1.5 mmoles).Solvent becomes dark red-red-purple immediately, stirs and after 15 minutes flask is shifted out from cooling bath, and be condensed into sticking shape oil.Add methyl alcohol (20 milliliters) after the degassing with precipitation red-purple solid, use methanol wash (3 * 10 milliliters) washing then, drying obtains the carbene of 1.09 grams or about 95.2% yield.
NMR data (the CD that selects
2Cl
2):
1H: δ 19.26 (d, RuCH, J
HH=11.7Hz), 7.81 (d, RuCHCH, J
HH=11.7Hz);
31P: δ 36.4 (s, RuPCy
3);
13C: δ 288.4 (t, RuCH, J
CP=9.6Hz), 146.9 (s), 133.5 (s).
NMR studies show that, this reactant extremely pure (not having other carbene kind) under-30 ℃, and proceed to about 99%.Reactant so impure (promptly producing a small amount of other infers and uncertain carbene kind) at room temperature but also proceeds to～98% yield.Therefore adopt low temperature to be used to produce this compound separation is carried out a little easily, and the yield of pure products is higher.Yet at room temperature can produce this carbene that is used for in-field use and have seldom or not significantly influence.
Specification sheets describe part described all other and (Cl) (H of Ru (H)
2) (PCy
3)
2Reaction can carry out in a similar fashion, but all be 20 milligrams at 0.5 milliliter of CD
2Cl
2In scale.Non-commercially available alkynes prepares according to following method: Preparative AcetylenicChemistry, L.Brandsma, Elsevier Scienee Publishers B.V. (Amsterdam, 1988); People such as H.Werner, people such as Chem.Ber.122:2097-2107 (1989) and K.Hiraki, J.Chem.Soci., Dalton Trans. 873-877 page or leaf (1985), all these documents are incorporated this paper herein by reference into.
Method B: the trialkyl phosphine scheme of alkynes approach
0.24 milliliter of 3-chloro-3-methyl isophthalic acid-butine is joined (Cl) (PPh of Ru (H)
3)
3(2.0 grams, 1.99 mmoles) are in-30 ℃ of solution of methylene dichloride (20 milliliters).Reaction mixture was stirred 1.5 hours down at 0 ℃.After under reduced pressure volume being reduced to 1 milliliter, add 20 milliliters of pentanes.By filtering to isolate the brown solid of gained, be dissolved in again in 1 milliliter of methylene dichloride, use 10 milliliters of/time pentane washed twice then, obtain the required product of 1.5 grams (90% yield).
Method C: produce in situ Ru (H) is (H (Cl)
2) (PCy
3)
2
With [RuCl
2(COD)]
x[0.500 gram, 1.78 mmoles) and tricyclohexyl phosphine (1.050 restrain, 3.75 mmoles) be positioned over 250 milliliters of heavy walls and be equipped with in the Strauss flask of teflon valve.Sec-butyl alcohol after 20 milliliters of degassings is joined in this system.Then this system is positioned under the vacuum, purges with hydrogen, sealing, and be heated to 80 ℃.After 4 hours system is cooled to room temperature, pressurizes again with hydrogen, and 80 ℃ of restir 16 hours.Then system is cooled to room temperature, adds the toluene of 1 volume.Gained solution is cooled to-30 ℃, adds valylene (254 milliliters, 2.66 mmoles).Stir after 1 hour, solution concentration is become half, add methyl alcohol after 50 milliliters of degassings, as above-mentioned, separate, obtain 0.590 gram, 41% RuCl to obtain mauve solid
2(PCy
3)
2(=CH-CH=CMe
2).
RuCl
2(PCy
3)
2(=CH-CH=CMe
2) synthetic: a still synthesis method
With [RuCl
2(COD)]
x[0.500 gram, 1.79 mmoles) and tricyclohexyl phosphine (1.000 restrain, 3.58 mmoles) be positioned over 500 milliliters and be equipped with in the manometric high pressure system.Sec-butyl alcohol after 25 milliliters of degassings and triethylamine (0.250 milliliter, 1.79 mmoles) are joined in this system.After purging with hydrogen, described system is pressurizeed with 1.5 atmospheric hydrogen, and is heated to 80 ℃ (totally 20 hours), pressurizes on demand again.Observe orange throw out Ru (H) (H
2)
2Cl (PCy
3)
2And show slightly brown solution.Then this device is cooled to room temperature, reduces to 0 ℃ again, purge with argon this moment.Add 3-chloro-3-methyl isophthalic acid-butine (0.600 milliliter, 5.3 mmoles).Orange throw out becomes red-red-purple after 1 hour, then reactant is shifted out from ice bath, and restir 1 hour.Methyl alcohol (25 milliliters) after the adding degassing is used methyl alcohol (3 * 10 milliliters) washing and drying then with precipitation red-purple solid, obtains 1.35 grams, 94.5% carbene.NMR data (the CD that selects
2Cl
2):
1H:d19.26 (d, RuCH, J
HH=11.7Hz, 1H), 7.81 (d, RuCHCH, J
HH=11.7Hz, 1H);
31P:d36.4 (s, RuPCy
3);
13C:d 288.4 (t, RuCH, J
CP=9.6Hz), 146.9 (s), 133.5 (s).RuCl
2(piPr
3)
2Cl
2Ru (=CH-CH=CMe
2) synthetic: a still synthesis method
This method be used for synthetic RuCl
2(PCy
3)
2(=CH-CH=CMe
2) a still synthesis method identical, difference is to use tri isopropyl phosphine (0.573 gram, 3.58 mmoles) to replace tricyclohexyl phosphine.In this case, intermediate Ru (H) (H
2)
2Cl (PiPr
3)
2Be soluble, obtain red tan solution, cool off then, add 3-chloro-3-methyl isophthalic acid-butine again.Reacting phase discharge gas immediately when violent, and observes and the amaranth throw out occurs.Stir after 30 minutes, as above-mentioned with solids constituent from, obtain 1.85 the gram, 92.5% carbene.NMR data (the CD that selects
2Cl
2):
1H:d 19.38 (d, RuCH, J
HH=11Hz, 1H), 7.95 (d, RuCHCH, J
HH=11Hz, 1H), 2.80 (m, PCH (CH
3)
2, 6H), 1.54 and 1.26 (s, RuCHCHC (CH
3)
2, each is 3H), 1.23 (dd, P PCH (CH
3)
2, 36H);
31P:d 45.8 (s, RuPCy
3).
Adopt the catalyst to synthesize-Dicyclopentadiene (DCPD) of produce in situ
Under argon gas atmosphere, by with (Cl) (H of the Ru (H) of 18 milligrams (0.025 mmoles)
2)
2(PCy
3)
2Be dissolved in about 0.5-1.0 milliliter methylene dichloride and finish Ru
2Cl
2(PCy
3)
2(=CH-CH=CMe
2) generation on the spot of (after this claiming the ruthenium carbene catalysts in the present embodiment).This solution is cooled to-30 ℃, adds 3-chloro-3-methyl isophthalic acid-butine (3.5 milliliters, 0.030 mmole) this moment.Described solution becomes red-red-purple immediately, stirs to remove after 15 minutes and desolvates, and obtains the oily matter of black.If solid is required kind, then solution can be concentrated, and can add methyl alcohol after a small amount of (less than 1 milliliter) degassing to obtain mauve solid, be dried (need not to filter) in a vacuum.
By the solution of following acquisition was placed 1 hour in 40 ℃ oil bath, in 100 ℃ baking oven, place then and carried out polymerization at least 1 hour.
Method A:
The ruthenium carbene catalysts of produce in situ is dissolved among 25 milliliters of DCPD, pours into then in the beaker.
Method B:
The ruthenium carbene catalysts of produce in situ is dissolved among 5 milliliters of DCPD that contain 40 milligrams of triphenylphosphines, under argon gas atmosphere, stirs then.The solution suitable thickness that become after 4 hours joins them among 20 milliliters of DCPD in beaker.
Method C:
The ruthenium carbene catalysts of produce in situ is dissolved among 1 milliliter of DCPD that contains 40 milligrams of triphenylphosphines, under argon gas atmosphere, stirs then.This solution has viscosity, soft gelatinous denseness after 17 hours, it can be dissolved among 4 milliliters of DCPD before joining them among 20 milliliters of DCPD in beaker.
Ru (COD) (COT)+2PCy
3+ α, α-toluene dichloride
With α, α-toluene dichloride (50 milliliters, 0.39 mmole) joins Ru (COD) (COT) (0.11 gram, 0.33 mmole) and PCy
3(0.19 gram, 0.67 mmole) is in the solution of 15 milliliters of toluene.Reaction mixture at room temperature stirred two days.Gained dark-brown solution is evaporated, and resistates is separated the red-purple solid with acetone and methanol wash (twice, 5 milliliter/time).The NMR spectrum of this product and compound R u (=CHPh) Cl
2(PCy
3)
2Identical.Yield is 50%.
Ru (H)
2(H
2) (PCy
3)
2+ vinylbenzene+Cl
2CHCO
2Me
Vinylbenzene (5 milliliters) is joined Ru (H)
2(H
2)
2(PCy
3)
2(3.0 grams, 4.50 mmoles) are in the suspension of pentane (50 milliliters).The red solution that obtains was immediately stirred 1 hour, add Cl then
2CHCO
2Me (0.9 milliliter, 8.7 mmoles).Reaction mixture was stirred 45 minutes.Remove and desolvate, resistates acetone and methanol wash (twice, 20 milliliter/time).Isolate red-purple solid (2.0 grams, 54% yield), its NMR data and RuCl
2(PCy
3)
2The data of (=CHPH) are identical.
Claims (6)
1. be used to prepare the method for following formula: compound:
Wherein, n is 1 or 2; M is osmium or ruthenium; X and X
1Identical or different, for halogen, hydrogen or be selected from following group: benzoate, C
1-C
5Carboxylate salt, C
1-C
5Alkyl, phenoxy group, C
1-C
5Alkoxyl group, C
1-C
5Alkylthio, aryl and C
1-C
5Alkylsulfonate, wherein each group is randomly used C
1-C
5Alkyl or phenyl replaces; With L and L
1Identical or different, be formula PR
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, R
4And R
5Identical or different, be aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group,
It comprises:
At NaOH and H
2Existence under make [MXX
1(cyclooctadiene)]
mWith L and L
1React.
2. be used to prepare the method for following formula: compound:
Wherein, n is 1 or 2; M is osmium or ruthenium; X
1For halogen, hydrogen or be selected from following group: benzoate, C
1-C
5Carboxylate salt, C
1-C
5Alkyl, phenoxy group, C
1-C
5Alkoxyl group, C
1-C
5Alkylthio, aryl and C
1-C
5Alkylsulfonate, wherein each group is randomly used C
1-C
5Alkyl or phenyl replaces; L and L
1Identical or different, be formula PR
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, R
4And R
5Identical or different, be aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group,
It comprises:
At H
2Existence under make [M (X
1)
2(cyclooctadiene)]
mWith L and L
1React.
3. be used for synthesis type Ru (X)
2(L)
2(=CHR
1) method of compound, it comprises: in solvent L in the presence of make R
1CHX
2React with Ru (cyclooctadiene) (cyclo-octatriene), wherein:
R
1Be selected from hydrogen, phenyl, by being selected from the phenyl that following group replaces: muriate, bromide, iodide, fluorochemical ,-NO
2,-NMe
2, methoxyl group and methyl;
X is a halogen; With
L is formula PR
3R
4R
5Phosphine, R wherein
3Be secondary alkyl or cycloalkyl group, R
4And R
5Be independently selected from aryl, C
1-C
10Primary alkyl, secondary alkyl or cycloalkyl group.
4. according to the method for claim 3, R wherein
1Also comprise the functional group who is selected from hydroxyl, thiol, thioether, ketone, aldehyde, ester, ether, amine, imines, acid amides, nitro, carboxylic acid, disulphide, carbonic ether, isocyanic ester, carbodiimide, carbonylic alkoxy, carbamate and halogen.
5. according to the method for claim 3, wherein:
X is a muriate;
L is selected from P (cyclohexyl)
3, P (cyclopentyl)
3And P (sec.-propyl)
3With
Described solvent is a toluene.
6. according to the method for claim 3, R wherein
1Be phenyl.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3108896P | 1996-11-15 | 1996-11-15 | |
| US60/031088 | 1996-11-15 | ||
| US08/966011 | 1997-11-07 | ||
| US08/966,011 US5917071A (en) | 1996-11-15 | 1997-11-07 | Synthesis of ruthenium or osmium metathesis catalysts |
Related Parent Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971812969A Division CN1134448C (en) | 1996-11-15 | 1997-11-10 | Synthesis of ruthenium or osmium metathesis catalysts |
| CNB031042007A Division CN100338082C (en) | 1996-11-15 | 1997-11-10 | Synthesis of ruthenium or osmium metathesis catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1896085A CN1896085A (en) | 2007-01-17 |
| CN1896085B true CN1896085B (en) | 2011-09-14 |
Family
ID=34061441
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100934492A Expired - Fee Related CN1896085B (en) | 1996-11-15 | 1997-11-10 | Synthesis of recyclable chiral metathesis catalysts |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1896085B (en) |
| MY (1) | MY128093A (en) |
| TW (1) | TW585869B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5312940A (en) * | 1992-04-03 | 1994-05-17 | California Institute Of Technology | Ruthenium and osmium metal carbene complexes for olefin metathesis polymerization |
-
1997
- 1997-11-10 CN CN2006100934492A patent/CN1896085B/en not_active Expired - Fee Related
- 1997-11-14 MY MYPI9705485 patent/MY128093A/en unknown
- 1997-11-15 TW TW86117084A patent/TW585869B/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5312940A (en) * | 1992-04-03 | 1994-05-17 | California Institute Of Technology | Ruthenium and osmium metal carbene complexes for olefin metathesis polymerization |
Non-Patent Citations (4)
| Title |
|---|
| burrelll et al.synthesis and reactions of Ru(=CH2)(L(NO)(PPh3)2. astableterminal methylene complex and the crystal structureofRu(CH2PPh3)(-C2F4)Cl(NO)(PPh3).J. American Chem. Soc.118 1.1996,118(1),609-614. |
| burrelll et al.synthesis and reactions of Ru(=CH2)(L(NO)(PPh3)2. astableterminal methylene complex and the crystal structureofRu(CH2PPh3)(-C2F4)Cl(NO)(PPh3).J. American Chem. Soc.118 1.1996,118(1),609-614. * |
| grunswald et al.five-coordinate 16-electron carbene-andvinylideneruthenium(II) complexes preparedfrom[RuCl2(C8H12)]n or from thenew dihydridoruthenium(IV)compound [RuH2Cl2(PPr3)2].organometalics15 8.1996,15(8),1960-1962. |
| grunswald et al.five-coordinate 16-electron carbene-andvinylideneruthenium(II) complexes preparedfrom[RuCl2(C8H12)]n or from thenew dihydridoruthenium(IV)compound [RuH2Cl2(PPr3)2].organometalics15 8.1996,15(8),1960-1962. * |
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| Publication number | Publication date |
|---|---|
| CN1896085A (en) | 2007-01-17 |
| TW585869B (en) | 2004-05-01 |
| MY128093A (en) | 2007-01-31 |
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