WO2018236191A1 - 루테늄 착물 형성을 위한 리간드, 루테늄 착물 촉매 및 이의 제조방법과 용도 - Google Patents
루테늄 착물 형성을 위한 리간드, 루테늄 착물 촉매 및 이의 제조방법과 용도 Download PDFInfo
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Definitions
- the present invention relates to ligands for ruthenium complex formation, ruthenium complex catalysts, and their preparation and use.
- SHOP Shell Higher Olefin Process
- the Shell Higher Olefin Process has a problem in that the linear? -Olefin has a wide distribution such as 41% of the C4-8 carbon atoms, 40.5% of the carbon atoms of 10-18 and 18.5% of the carbon atoms, .
- the Shell Higher Olefin Process has a low synthesis yield of 1-Decene.
- this method requires a high temperature of 60 to 300 DEG C and a high pressure of 30 to 200 bar.
- ruthenium complex catalysts include Grubbs catalysts (Yves Chauvin, Robert H. Grubbs and Richard R. Schrock), which won the 2005 Nobel Prize in Chemistry.
- a method for synthesizing a linear? -Olefin obtained from a renewable seed oil raw material is as follows.
- Methyl oleate can undergo cross metathesis with ethylene.
- C C double bond is decomposed by Ethenolysis of methyl oleate.
- Ethenolysis of methyl oleate the desired linear? -Olefin can be synthesized.
- the synthesis yield of a single 1-Decene is high.
- the cross-metathesis reaction using a Ru catalyst has an advantage of being able to proceed under a low temperature of 40 ° C to 100 ° C and a low pressure of about 10 Bar.
- ruthenium complex catalysts are known as N-heterocyclic carbene (NHC) ligands. Since ruthenium complexes with asymmetrically substituted N-heterocyclic carban ligands exhibit a high selectivity for cross-metathesis products compared to by-products by self-metathesis, (Yann Schrodi, Thay Ung, Angel Vargas, Garik Mkrtumyan, Choon Woo Lee, Timothy M. Champagne, Richard L. Pederson, and Soon Hyeok Hong_Clean: Soil, Air, Water, 2008, 36, 669). The stabilization of the methylidene intermediate has been suggested as a key factor in improving the catalytic activity.
- the phosphine-free catalyst is more stable than the phosphine ligand. Accordingly, the present inventors have studied a phosphine-free catalyst having stability.
- imidazo [1,5-a] pyridine-3-ylidene, ImPy) which was first reported in 2005, is a candidate for structurally asymmetric NHC ligands Electronic characteristics vary.
- the present inventors have repeatedly studied the effects of the asymmetric Impy-based ligand structure change on the activity, selectivity and stability of the catalyst. This resulted in a novel ruthenium complex ligand, ruthenium complex with high activity and high selectivity for the formation of terminal olefins in the methylolate ethenol ises and high stability of the catalyst.
- the present invention is to provide a novel ruthenium complex ligand, ruthenium complex, which has high activity of the catalyst, high selectivity for formation of terminal olefins in the methylolate ethenol ises, and high stability.
- the ligand for the formation of the ruthenium complex of the present invention has the following formula:
- the ruthenium complex catalyst of the present invention has the following chemical formula.
- the ligands, ruthenium complex catalysts, for the ruthenium complex formation of the present invention have high catalytic activity, high selectivity, and stability.
- the ruthenium complex catalysts of the present invention may exhibit a high selectivity for the formation of terminal olefins in the methyl oleate etonole ises. As a result, the production efficiency of the terminal olefin can be improved.
- Fig. 1 shows a methylolate and ruthenium metathesis catalyst etalone ises.
- Figure 2 shows the synthesis of a ligand precursor according to an embodiment.
- Figure 3 shows the synthesis of various ImPy-Ru complexes according to the examples.
- Figure 4 shows the solid-phase structure by X-ray analysis of various ImPy-Ru complexes according to the examples.
- Figure 5 is a graphical representation of the conversion rates observed in an intramolecular ring-closed metathesis reaction using various ImPy-Ru complexes according to the examples.
- FIG. 6 is a view for explaining a selective etonol ises reaction for synthesizing a cyclic alkyne compound and a linear unsaturated polymer linear?,? -Diene.
- the present inventors have found that ruthenium complexes having an asymmetrically substituted N-heterocyclic carban ligand exhibit a high selectivity for cross-metathesis products compared to by-products by self-metathesis, ImPy-ruthenium complex catalysts were studied.
- the present inventors have completed a ligand for forming a ruthenium complex having the general formula [1a] and the general formula [1b].
- the ligand for forming a ruthenium complex having the structure according to the present invention may include an asymmetric structure.
- the asymmetric structure may mean that the sizes of R1 and R2 are different.
- R1 may contain atoms or atomic groups smaller than R2.
- R1 has an asymmetric structure smaller in size than R2, and thus can have a high selectivity.
- selectivity may mean that a higher proportion of cross-metathesis products are formed than by-products by self-metathesis. Accordingly, it is needless to say that the ligand for forming a ruthenium complex having the structure according to Formula (I) can be used as a catalyst for etonole isis through bonding with ruthenium.
- R1 and R2 can be electronically and / or sterically influenced because they can be placed at a distance from a ruthenium atom to an atom bonded to ruthenium.
- R1 and R2 were determined through electronic, stereoscopic control.
- R1 may be F or methyl.
- the halogen element other than F increases the bond length with the ring carbon and the size of the element is large, so that the stereospecific repulsion increases, so that the selectivity of the reaction may be lowered.
- alkyl groups other than methyl increase stereospecificity at the time of forming the ruthenium complex catalyst, the selectivity of the reaction can be lowered.
- R2 may include substituted or unsubstituted aryl.
- R2 may comprise a substituted aryl of 9 to 12 carbon atoms.
- R3, R4, R5 and R6 may each be any one selected from hydrogen, a halogen atom, a linear or branched alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms.
- R3, R5, and R6 may each include hydrogen.
- R4 may include any one selected from the group consisting of H, t-Bu, MeO, Cl.
- R 1, R 3, R 4, R 5 and R 6 are as described above for formula (Ia).
- R7, R8, R9, R10, and R11 may each be selected from hydrogen or a linear or branched alkyl group having 1 to 8 carbon atoms.
- R7, R8, R9, R10, and R11 may each include any one selected from hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms.
- R7 may include any one selected from ethyl, isopropyl, and t-butyl.
- R8, R9, and R10 may each include hydrogen.
- R11 may be any one selected from methyl, ethyl, and isopropyl.
- R7 and R11 may have the same or different substituents. Specifically, the carbon number of R7 may be the same as the carbon number of R11, or the carbon number of R7 may be larger than the carbon number of R11. In one example, R7 and R11 may each be isopropyl. Alternatively, R7 and R11 may each be ethyl. In one example, R7 may be ethyl and R11 may be methyl. Alternatively, R7 is isopropyl and R11 can be hydrogen. Alternatively, R7 may be t-butyl and R11 may be hydrogen.
- a ruthenium complex catalyst having the formula (2a) or (2b) can be formed by bonding ruthenium to a ligand for forming a ruthenium complex having the structure represented by the above formulas (1a) and (1b).
- the ruthenium complex catalyst of formula (2a) is a phosphine-free complex, instability due to decomposition can be solved. Further, since the R1 of the nitrogen-containing heterocyclic ligand can form a stable coordination with the metal center of Ru, the ruthenium complex catalyst of the above formula (2a) is stable.
- R 1, R 3, R 4, R 5 and R 6 have the same meanings as described above.
- R7, R8, R9, R10 and R11 are as described above for formula (1b).
- the metathesis reaction using ethylene is also called Ethenolysis, and is a reaction in which an internal olefin is broken to convert it to an olefin group at the terminal. It has also been proposed as a new method for making linear alpha olefins from oils present in nature, not through petrochemistry. The present inventors have studied the reaction conversion, selectivity and reactivity of the catalyst using methyl oleate.
- terminal olefins are important building blocks of various chemicals.
- a ruthenium complex with an N-heterocyclic carban (NHC) ligand can be selected as one of the catalysts for ethenol ises.
- the Grubbs-Hoveyda second-generation catalyst (FIG. 1, 6) mediates the methylation of oleolate (MO, 1) and has a selectivity of 33% at 100 ppm catalyst loading, a yield of 20% turnover number, TON). Stabilization of the methylidene intermediate is known to play a pivotal role in ensuring a high turnover number and selectivity in the ethanolate ises of methyl oleate.
- Ruthenium complex catalysts have been found to be very important for the alpha-olefin selective ethenol ises in the sterically asymmetrical substitution pattern of the N-heterocyclic carban (NHC) ligand.
- the lack of steric interactions on one side may favor a " non-productive " metathesis of the alpha -olefin product and the methylidene intermediate to regenerate the same methylidene intermediate.
- ImPy Imidazo [1,5-a] pyridin-3-ylidene carbine, ImPy), which was first reported independently by JM Lassaletta and F. Glorius in 2005, Is a bicyclic variant of a typical imidazoylidene NHC.
- the ImPy ligand has an inherently asymmetric structure and is known to carry more electron donors than imidazolyliden NHC.
- the Ru-ImPy catalyst could be a good candidate for an efficient and selective etonon-isis reaction.
- the R 1 substituent of ImPy may be located close to the Ru metal center.
- the ImPy-Ru catalyst exhibits a high selectivity (74% to 86%) for the formation of terminal olefins in the methyl oleate (MO) in the ethanolic ises.
- Fig. 2 is for establishing conditions for the Ethenolysis ruthenium catalyst synthesis. Describes in detail the N-heterocyclic carbine (NHC) ligand synthesis. More specifically, a ligand based on an imidazopyridine structure rather than NHC's basic imidazole structure can be synthesized readily using the Glorius or Aron method.
- NHC N-heterocyclic carbine
- the ligands 15a, 15b, 15c, 15d, 15e, 15f, 15g, 15h and 15i can be synthesized.
- FIG. 2 is a simplified representation of the synthesis of ligand precursors 15a-15h.
- the 2-fluoropyridine derivatives (12a, 12f, 12g and 12h) were synthesized by selective fluorination using AgF 2 in CH 3 CN according to procedures well known in the art (PS Fier and JF Hartwig, Science 2013, 342, 956).
- imine ligands were provided with excellent overall separation yields by cyclization using AgOrf and chloromethyl pivalate followed by imine formation (14a-14i) (Christian Burstein, Christian W. Lehmann and Frank Glorius , Tetrahedron, 2005, 61, 6207).
- ImPy containing chlorine atoms and methyl groups (10i to 10k) was synthesized from 6-chloropyridinecarboxaldehyde (13i, SI) and 6-methylpicolinecarboxaldehyde (13k, SI).
- Figure 3 is a diagram showing the synthesis (isolated yield) of the ImPy-Ru complex. The following description will be made with reference to Fig.
- the ruthenium catalysts 10a, 10b, 10c, 10d, 10e, 10f, 10h, 10i, 10h, and 10k were synthesized by the exchange reaction of free carbene made with the base and the first generation Gubbs- .
- the ImPy-Ru complex was synthesized with the fluorinated ImPy ligand precursor (15a to 15h) as follows. Potassium seksa methylimidazole sila azide (potassium hexamethyldisilazide, KHMDS) imidazolidin nose bipyridinium salt in place of (15a to 15h) (in situ) deprotonation after RuCl2 (PCy 3) ( ⁇ CH- oO i PrC 6 using the H 4 ) (S1) to produce a Grubbs-Hoveyda-type Ru complex with an ImPy ligand (10a-10k) at a reasonable separation yield ((a) SF Monsaert, FWC Verpoort, Eur .Pat 300 2011091980, 2011, (b) BJ van Lierop, AM Reckling, JAM Lummiss, and DE Fogg, ChemCatChem 2012, 4th edition, 2011; SF Monsaert, FWC Verpoort, WO
- a complex (10i) containing a chlorine atom instead of fluorine was synthesized in a similar manner.
- These chelated benzylidene complexes 10a-10k are stable under atmospheric conditions (air and moisture). These complexes were characterized by nuclear magnetic resonance spectroscopy (NMR), high resolution mass spectrometry (HRMS) and X-ray crystallography. Single crystals suitable for X-ray crystallography were grown by slow diffusion of hexane through the catalyst solution in dichloromethane at 25 ° C.
- Fig. 4 shows the solid-phase structure by X-ray analysis of various ImPy-Ru catalyst single crystals according to the examples. For clarity, the representation of hydrogen atoms is omitted.
- Ru-F interactions can be identified on solid phase from X-ray analysis, and Ru-F interactions are believed to be involved in stabilizing ruthenium methylidene intermediates.
- the solid-phase analysis shows that complexes exhibiting a twisted tetragonal pyramidal orientation and N-aryl groups are located on O-chelated benzylidene.
- the ImPy-Ru catalyst is structurally similar to the NHC supported ruthenium catalyst.
- the R1 group (especially the fluorine atom) is elevated next to the ruthenium metal center. This is different from other ruthenium metathesis catalysts with fluorinated NHCs ((a) T. Ritter, MW Day, and RH Grubbs, J. Am. Chem. Soc. 2006, 128, 11768-11768, A. Fedorov, C. Coperet, and A. Togni, Organometallics 2016, 35, 887-893).
- the selected coupling length (A) and coupling angle (°) are as follows.
- the catalytic performance of the prepared ImPy-Ru complex was evaluated in the methylolate ethenolysis reaction.
- the present inventors have compared the activity of the synthesized ruthenium complex catalyst.
- the results of the activity analysis of the ruthenium complex catalyst indicated by 10a to 10k having the different structures are the same as those shown in Table 1.
- the catalytic activity of the synthesized catalysts 10a to 100p was measured at 60 ° C for 3 hours using a catalytic amount of 100 ppm.
- 10d and 10e exhibit a higher conversion rate than 10c and maintain high selectivity. This is presumably due to the fact that there is a proper space for olefinic access when only one ortho-substituted alkyl is substituted for the N-aryl group.
- the conversion is calculated as 100 - [(final molar number 1) * 100 / [initial molar number 1]).
- the selectivity is calculated as 100 * (2 + 3 moles) / [(2 + 3 moles) + (2 * 4 + 5 moles)].
- the yield is calculated as conversion rate * selectivity / 100.
- the number of turnovers is calculated as yield * (initial mol number 1 / molar number of catalyst) / 100.
- the present inventors have compared the activity of the synthesized ruthenium complex catalyst.
- the results of the activity analysis of the ruthenium complex catalyst indicated by 10e to 10i having different structures are the same as those shown in Table 2.
- 10f which has a sigma-functional group and tert-butyl functional group, shows a higher conversion rate than that of 10e.
- 10g and 10h with the pie-giving mechanism show lower conversion rates.
- 10i with chlorine group in R1 does not show activity.
- Table 2 summarizes the main chain replacement effect of the F-ImPy-Ru catalyst.
- Complex 10f containing sigma-donating t-Bu group in the main chain improves catalytic activity with 50% conversion and 4000 turnovers compared to complex 10e (item 2 vs item 1).
- the catalysts 10g and 10h exhibit lower conversion rates compared to 10e (items 3 and 4 vs item 1).
- the ⁇ -donating group appears to be ineffective as it exhibits a low turnover number.
- the Cl-ImPy-Ru catalyst does not exhibit catalytic activity (item 5).
- the conversion is calculated as 100 - [(final molar number 1) * 100 / [initial molar number 1]).
- the selectivity is calculated as 100 * (2 + 3 moles) / [(2 + 3 moles) + (2 * 4 + 5 moles)].
- the yield is calculated as conversion rate * selectivity / 100.
- the number of turnovers is calculated as yield * (initial mol number 1 / molar number of catalyst) / 100.
- the inventors compared the activity of the 10f ruthenium complex catalyst.
- the results of the activity analysis by controlling the catalyst amount and the temperature of the ruthenium complex catalyst indicated by 10f are shown in Table 3.
- reaction conditions were established by controlling the amount and temperature of the ruthenium complex catalyst of 10f structure. Through this, 6700 TON (turnover numbers) were obtained at a temperature of 60 degrees using a catalyst amount of 20 ppm.
- Table 3 summarizes the optimization of reaction conditions for catalyst loading and reaction temperature. It can be seen that the catalyst loading at 60 ° C and 200 ppm exhibits optimum catalyst performance (6700 turnovers, 71% selectivity).
- the conversion is calculated as 100 - [(final molar number 1) * 100 / [initial molar number 1]).
- the selectivity is calculated as 100 * (2 + 3 moles) / [(2 + 3 moles) + (2 * 4 + 5 moles)].
- the yield is calculated as conversion rate * selectivity / 100.
- the number of turnovers is calculated as yield * (initial mol number 1 / molar number of catalyst) / 100.
- the present invention describes the synthesis of a novel ruthenium catalyst containing an asymmetric ImPy ligand (ImPy-Ru) and its application in catalytic ethanolysis of methyl oleate.
- Ru-F interactions were identified in solid state by X-ray analysis, and Ru-F interactions could stabilize the ruthenium methylidene intermediate.
- F-ImPy-Ru catalysts with ortho-t-Bu-phenyl substituents in the ring nitrogen and sigma donating t-Bu groups in the pyridine backbone showed high turnovers (up to 6700).
- the ImPy-Ru catalyst exhibits high selectivity (up to 86%) for terminal olefin formation in the methylolate ethenol ises.
- the ruthenium complex according to the present invention can be used as a catalyst in an olefin metathesis reaction.
- the production yield of the linear? -Olefin through the olefin metathesis reaction can be improved.
- the ruthenium complex catalyst of the examples can undergo olefin metathesis reaction at 60 ° C for 3 hours to exhibit selectivity of 70% or more.
- the ruthenium complex catalysts of the Examples can exhibit selectivity of 75% to 86% for terminal olefin formation in the methylolate ethenol ises.
- the ruthenium complex catalysts of the Examples may exhibit selectivity of 81% to 86% for terminal olefin formation in the methylolate ethenol ises.
- the ruthenium complex of the present invention is not limited thereto, and can be utilized for various reactions such as an intramolecular ring-closing olefin metathesis reaction, an intermolecular olefin metathesis reaction, and an olefin metathesis polymerization reaction.
- the ruthenium complexes of the present invention can form cyclic products from linear reactants in high yields through intramolecular ring-closed metathesis reactions.
- the conversion in the intramolecular ring-closed metathesis reaction may be greater than 88%.
- the conversion in the intramolecular ring-closed metathesis reaction may be greater than 92%.
- the conversion rate in the intramolecular ring-closed metathesis reaction may be from 92% to 99%.
- the present invention is also applicable to selective ethanone ises reaction for the synthesis of linear ⁇ , ⁇ -diene of a cyclic alkyne compound. That is, linear ⁇ , ⁇ -dienes can be synthesized through the use of ethenol ises of cis-cyclooctene.
- Table 3 summarizes the optimization of reaction conditions for catalyst loading and reaction temperature (73 conversion, 47% selectivity and 34% yield)
- reaction conditions in the experiments in Table 4 were determined by GC using tridecane as the internal standard for conversion of catalyst (ppm), C2H4 (150 psi, 99.95% purity) at 60 DEG C for 6 hours, selectivity.
- linear ⁇ , ⁇ -diene is capable of competitive side reactions through condensation polymerization while eliminating ethylene.
- the ruthenium complex catalyst of the present invention may be capable of synthesizing a diene polymer through an intermolecular olefin polymerization from a diene compound having a double bond at each end of a linear compound.
- n may be several to several hundred.
- n may be from 1 to 700.
- n can be from 10 to 500.
- n may be from 100 to 300.
- the linear terminal diene compound may mean various compounds having from 4 to 20 carbon atoms.
- the linear terminal diene compound may be selected from the group consisting of 1,9-decadiene, 1,8-nonadiene, 1,7-octadiene, 1,6-heptadiene, 1,5- pentadiene and 1,3-butadiene.
- the ruthenium complex catalyst of the present invention can be used to obtain a desired product from the linear diene polymer, which is a monomer having a double bond at each end of the linear compound . That is, the ruthenium complex catalyst of the present invention can be used for depolymerization or ethenolysis reaction of an unsaturated linear polymer containing a double bond.
- the ruthenium complex catalyst of the present invention can be used to improve the yield of depolymerization of 1,4-polybutadiene or the reaction of ethenol ises.
- the ruthenium complex catalysts of the present invention can be prepared by depolymerization of polymers or by reaction with ethanoleic acid to form 1,9-decadiene, 1,8-nonadiene, 1,7-octadiene, 1,6-heptadiene, 1,5- 1,4-pentadiene, and 1,3-butadiene can be synthesized.
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Abstract
Description
| 항목 | 촉매 | 로딩(ppm) | 전환율(%) | 선택성(%) | 수율(%) | 턴오버수 |
| 1 | 10a | 100 | 14 | 74 | 10 | 1000 |
| 2 | 10b | 100 | 20 | 78 | 15 | 1500 |
| 3 | 10c | 100 | 6 | 86 | 5 | 550 |
| 4 | 10d | 100 | 26 | 82 | 22 | 2200 |
| 5 | 10e | 100 | 44 | 79 | 34 | 3400 |
| 6 | 10k | 100 | 7 | 91 | 6 | 600 |
| 항목 | 촉매 | 로딩(ppm) | 전환율(%) | 선택성(%) | 수율(%) | 턴오버수 |
| 1 | 10e | 100 | 44 | 79 | 34 | 3400 |
| 2 | 10f | 100 | 51 | 77 | 39 | 4000 |
| 3 | 10g | 100 | 34 | 81 | 27 | 2700 |
| 4 | 10h | 100 | 27 | 83 | 23 | 2300 |
| 5 | 10i | 100 | <1 | - | - | - |
| 항목 | 촉매 | 온도(℃) | 로딩(ppm) | 전화율(%) | 선택성(%) | 수율(%) | 턴오버수 |
| 1 | 10f | 60 | 200 | 68 | 79 | 54 | 2700 |
| 2 | 60 | 100 | 51 | 77 | 39 | 3900 | |
| 3 | 60 | 50 | 32 | 77 | 25 | 5100 | |
| 4 | 60 | 20 | 19 | 71 | 13 | 6700 | |
| 5 | 40 | 100 | 25 | 77 | 19 | 1900 | |
| 6 | 80 | 100 | 55 | 76 | 42 | 4200 | |
| 7 | 100 | 100 | 57 | 72 | 41 | 4100 |
| 항목 | 로딩(ppm) | 압력(psi) | 전환율(%) | 선택성(%) | 수율(%) | 턴오버수 |
| 1 | 100 | 150 | 70 | 22 | 15 | 1500 |
| 2 | 200 | 150 | 69 | 25 | 17 | 900 |
| 3 | 500 | 150 | 70 | 48 | 33 | 700 |
| 4 | 1000 | 150 | 73 | 47 | 34 | 700 |
| 5 | 500 | 200 | 68 | 48 | 33 | 700 |
| 6 | 500 | 300 | 60 | 56 | 34 | 700 |
Claims (19)
- 제 1항에 있어서,R1은 F 또는 메틸이고,R2는 치환 또는 비치환된 아릴을 포함하는, 루테늄 착물 형성을 위한 리간드.
- 제 1항에 있어서,R2는 탄소 원자수 9 내지 12의 치환된 아릴을 포함하는, 루테늄 착물 형성을 위한 리간드.
- 제 1항에 있어서,R3, R5, R6는 각각 수소를 포함하는, 루테늄 착물 형성을 위한 리간드.
- 제 1항에 있어서,R4는 H, t-Bu, MeO, Cl 를 포함하는 군에서 선택된 어느 하나를 포함하는, 루테늄 착물 형성을 위한 리간드.
- 제 7항에 있어서,R1은 F 또는 메틸이고,R2는 치환 또는 비치환된 아릴을 포함하는, 루테늄 착물 촉매.
- 제 7항에 있어서,R2는 탄소 원자수 9 내지 12의 치환된 아릴을 포함하는, 루테늄 착물 촉매.
- 제 7항에 있어서,R3, R5, R6는 각각 수소를 포함하는, 루테늄 착물 촉매.
- 제 7항에 있어서,R4는 H, t-Bu, MeO, Cl 를 포함하는 군에서 선택된 어느 하나를 포함하는, 루테늄 착물 촉매.
- 제 7항에 따른 루테늄 착물을 선형 또는 고리형 alkene 화합물의 에틸렌-복분해 에테놀라이시스 (ethenolysis) 반응에서 촉매로 사용하는 방법.
- 제 7항에 따른 루테늄 착물을 분자 내 교차-복분해 (Cross-metathesis), 개환-복분해 (Ring-opening metathesis), 폐환-복분해 (Ring-closing metathesis), 개환-복분해중합 (Ring-opening metathesis polymerization), 디엔-복분해중합 (Acyclic diene metathesis polymerization 반응에서 촉매로 사용하는 방법.
- 제 7항에 따른 루테늄 착물의 이중결합을 포함하는 불포화 선형 고분자 중합체의 해중합(depolymerization) 또는 에테놀라이시스(ethenolysis)반응에서 촉매로 사용하는 방법.
- 피리딘유도체를 준비하는 제1 단계;선택적 플루오르화에 의해 2-플루오로피리딘유도체를 형성하는 제2 단계;2-플루오로피리딘유도체로부터 플루오로피리딘 카르복스알데히드를 형성하는 제3 단계;아닐린을 사용하여 이민을 형성하는 제4 단계;AgOTf 및 tBuCO2CH2Cl을 사용하여 분자 내 고리화반응에 의해서 화학식 1a의 구조를 가지는 리간드를 형성하는 제5 단계; 및상기 리간드를 Ru과 결합시켜 화학식 2a의 구조를 가지는 루테늄 착물 촉매를 형성시키는 제6 단계;를 포함하는 루테늄 착물 촉매의 제조방법.[화학식 1a][화학식 2a]R1은 R2보다 크기가 작은 원자 또는 원자단을 포함하고,R3, R4, R5, R6는 각각 수소, 할로겐 원소, 탄소수 1 내지 5의 선형 또는 분지형 알킬기, 또는 탄소수 1 내지 5의 알콕시기 중에서 선택된 어느 하나이다.
- 제16항에 있어서,상기 제2 단계는 CH3CN 내에 AgF2를 사용하여 선택적 플루오르화하는 것을 포함하는, 루테늄 착물 촉매의 제조방법.
- 제16항에 있어서,상기 제3 단계는 2-피리딘 카르복실레이트 유도체를 DIBAL-H 환원제를 통해 환원반응으로 플루오로피리딘 카르복스알데하이드를 수득하는 단계인 것을 포함하는, 루테늄 착물 촉매의 제조방법.
- 제 16항에 있어서,상기 제3 단계는 2-브로보피리딘의 n-BuLi, DMF 처리로 플루오로피리딘 카르복스알데히드를 수득하는 단계인 것을 포함하는, 루테늄 착물 촉매의 제조방법.
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| KR1020197026049A KR102321960B1 (ko) | 2017-06-23 | 2018-06-22 | 루테늄 착물 형성을 위한 리간드, 루테늄 착물 촉매 및 이의 제조방법과 용도 |
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| PL439977A1 (pl) * | 2021-12-23 | 2023-06-26 | Apeiron Synthesis Spółka Akcyjna | Nowe sterycznie aktywowane chelatujące kompleksy rutenu, sposób ich otrzymywania oraz ich zastosowanie w reakcjach metatezy olefin |
| CN115806677B (zh) * | 2022-11-15 | 2023-09-01 | 广东工业大学 | 一种具有光热转换性能的钌聚合物及其制备方法 |
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