CN107899614A - A kind of double-core xanthenes bridging amido pyridine Raney nickel and its preparation method and application - Google Patents

A kind of double-core xanthenes bridging amido pyridine Raney nickel and its preparation method and application Download PDF

Info

Publication number
CN107899614A
CN107899614A CN201711155478.1A CN201711155478A CN107899614A CN 107899614 A CN107899614 A CN 107899614A CN 201711155478 A CN201711155478 A CN 201711155478A CN 107899614 A CN107899614 A CN 107899614A
Authority
CN
China
Prior art keywords
xanthenes
core
double
raney nickel
pyridine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711155478.1A
Other languages
Chinese (zh)
Other versions
CN107899614B (en
Inventor
李为民
戎春勇
孙进龙
王福周
陈昶乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou University
Original Assignee
Changzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou University filed Critical Changzhou University
Priority to CN201711155478.1A priority Critical patent/CN107899614B/en
Publication of CN107899614A publication Critical patent/CN107899614A/en
Application granted granted Critical
Publication of CN107899614B publication Critical patent/CN107899614B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic System
    • C07F15/04Nickel compounds
    • C07F15/045Nickel compounds without a metal-carbon linkage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1805Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
    • B01J31/181Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
    • B01J31/1815Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08Catalytic processes
    • C07C2/14Catalytic processes with inorganic acids; with salts or anhydrides of acids
    • C07C2/20Acids of halogen; Salts thereof ; Complexes thereof with organic compounds
    • C07C2/22Metal halides; Complexes thereof with organic compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02Ethene
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/16Hydrocarbons
    • C10L1/1625Hydrocarbons macromolecular compounds
    • C10L1/1633Hydrocarbons macromolecular compounds homo- or copolymers obtained by reactions only involving carbon-to carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00Use of additives to fuels or fires for particular purposes
    • C10L10/14Use of additives to fuels or fires for particular purposes for improving low temperature properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/20Olefin oligomerisation or telomerisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/02Compositional aspects of complexes used, e.g. polynuclearity
    • B01J2531/0238Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
    • B01J2531/0241Rigid ligands, e.g. extended sp2-carbon frameworks or geminal di- or trisubstitution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80Complexes comprising metals of Group VIII as the central metal
    • B01J2531/84Metals of the iron group
    • B01J2531/847Nickel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Catalysts (AREA)

Abstract

The present invention relates to a kind of new xanthenes bridging amido pyridine double-core Raney nickel and preparation method thereof, and use it for catalyzed ethylene polymerization and prepare low degree, the polyethylene of highly -branched degree, this double-core Raney nickel has higher heat endurance and catalytic activity, and it can effectively regulate and control the molecular weight and the degree of branching of polyethylene, obtained highly -branched degree, the polyethylene product of low degree can be used as diesel pour inhibitor, can be effectively reduced the condensation point and cold filter plugging point of diesel oil.

Description

A kind of double-core xanthenes bridging amido-pyridine Raney nickel and its preparation method and application
Technical field
The invention belongs to catalytic field, and in particular to a kind of double-core xanthenes bridging amido-pyridine Raney nickel and its preparation Method and application.
Background technology
The main reason for diesel oil loses flowability at low temperature is that the wax crystallization in diesel oil separates out, and it is brilliant to form wax.These waxes Crystalline substance mushrooms out, and is bonded to mesh skeleton structure and diesel oil is wrapped in the inside, so that it loses flowability.It is suitable when adding After pour-point depressant, although the precipitation of wax can not be prevented, it can weaken wax crystalline form by varying the size and shape of wax and reticulate The ability of structure, so as to improve the mobile performance of diesel oil.
The diesel pour inhibitor of current domestic development is of less types, (the .AVS types such as Feng Lijuan, Zhang Zhiqing, Wang Fang such as Feng Lijuan Performance [J] oilfield chemistries of diesel pour inhibitor, 2013,30 (4):586-589,593) 4 kinds have been synthesized using radical polymerization Alkyl acrylate-vinyl acetate-styrene copolymer of different alkyl chain lengths, by measuring copolymer to diesel oil Pour point depression drop filter effect finds that AVS-16 depression effeCts are preferable, condensation point of diesel oil can be made to reduce by 12 DEG C, but it is poor to drop filter effect;AVS-18 Drop filter effect is preferable, can make the cold filter plugging point of diesel oil reduce by 4 DEG C, and depression effeCt is also preferable.
(Wang Jingjing, Xie Chengxi, the development of Tan Jian .P (DBF-VA) type Copolymer As Diesel Fuel Cold Flow Improver such as Wang Jingjing [J] Speciality Petrochemicals, 2006,23 (6):Dibehenyl fumarate-second 22-24.) has been synthesized with radical polymerization method Vinyl acetate bipolymer, can make to spit Kazakhstan -10#、0#Cold filter point of diesel oil reduces by 10 DEG C and 7 DEG C respectively;Make Dushanzi 0#Diesel oil Cold filter plugging point declines 12 DEG C;Kelamayi 0#Cold filter point of diesel oil declines 8 DEG C.
Above-mentioned pour-point depressant is mostly the copolymer of esters polymer or esters and alkene, and reaction temperature is higher, production Cost is higher.
The content of the invention
The present invention provides a kind of double-core xanthenes bridging amido-pyridine Raney nickel, and the catalyst activity is high, polymerization Reaction condition is gentle, with catalysed ethylene oligomerisation, can prepare the ethylene low polymer of highly -branched degree, which can directly make For oil pour-point depressant, using ethene as raw material, production cost is low.
Double-core xanthenes bridging amido-pyridine Raney nickel provided by the invention is the structure shown in following formula (I):
Wherein, R is independent methyl or isopropyl.
The preparation method of the catalyst includes the following steps:
(1) boronic acid compounds A and aniline compound B (excess) presses 3-4:10 molar ratio, mixes in organic solvent, adds Enter Pd (dba)2(addition is the 10% of boronic acid compounds A for (addition is 20% (w) of boronic acid compounds A) and triphenylphosphine (w)) 12h-24h is reacted in stirring at room temperature, forms diamine compound C:
Wherein, R is independent methyl or isopropyl.
(2) diamine compound C and aldehyde compound D presses 1:The molar ratio of 6-7 adds in organic solvent under organic acid catalysis Hot back flow reaction 12-24h, forms ligand E:
Wherein, R is independent methyl or isopropyl.
(3) ligand E and trimethyl aluminium press 1:6 molar ratio is heated to reflux anti-in organic solvent under organic acid catalysis 5-10h is answered, forms ligand F:
Wherein, R is independent methyl or isopropyl.
(4) ligand F and (DME) NiBr at room temperature2Compound presses 1:2 molar ratio is reacted in a solvent, obtains formula (I) The catalyst of shown structure.
Wherein, R is independent methyl or isopropyl.
Step (2) and step (3) described organic acid are one kind in formic acid, acetic acid, p-methyl benzenesulfonic acid or camphorsulfonic acid; Step (1), step (2), step (3) and step (4) described organic solvent are toluene, dimethylbenzene, chlorobenzene, tetrahydrofuran, dichloro One or more in methane.
Catalyst of the present invention prepares low polymerization degree for being catalyzed ethene, and the preparation method of high-branched polyethylene is: Under the conditions of anhydrous and oxygen-free, co-catalyst MAO, aromatic solvent are added into the pressure-resistant glass container of heavy wall and is stirred.By pressure bottle It is connected with ethene pipeline, and solution is deaerated, be heated to required temperature, is passed through ethylene gas, and be dissolved in CH2Cl2In formula (I) in nickel complex as catalyst agent injection polymerization system, react under fast stirring.After reaction, pressure release and in the first of acidifying Reaction is terminated in alcohol, polyethylene is made.
Wherein, the reaction temperature is 0-80 DEG C;The ethylene pressure is 1-5atm;The reaction time is 0.5-2h.
Double-core xanthenes bridging amido of the present invention-high-branched polyethylene made from the catalysis of pyridine Raney nickel is dropped as diesel oil Solidifying agent, molecular weight of polyethylene are 1000~4000, and the degree of branching is more than 80.
Beneficial effect:Catalyst prepared by the present invention, its catalytic activity is high, and polymeric reaction condition is gentle, can be catalyzed Ethylene oligomerization, can prepare the ethylene low polymer of highly -branched degree;Obtained oligomer can be used as oil pour-point depressant, using ethene as Raw material produces pour-point depressant, and relative to the copolymer pour-point depressant of current esters polymer or esters and alkene, cost is than relatively low.
Embodiment
The particular content of the present invention has been illustrated in following embodiments, gives synthesis and the second of ligand and complex The method of alkene polymerization.The wherein synthesis of complex, polymerization process are carried out under anhydrous and oxygen-free, all sensitive material storages In glove box, all solvents are all by stringent dry water removal.Ethylene gas is purified by removing water deoxygenation pillar.If without spy Different explanation, all raw materials directly use after buying.
It is as follows to characterize instrument:
Bruker 400MHz nuclear-magnetism instruments are used in nuclear-magnetism detection.Elemental analysis (Vario EL cube).Molecular weight and molecule Amount distribution is measured by high temperature GPC.Mass spectrum Thermo LTQ Orbitrap XL (ESI+) or P-SIMS-Gly of Bruker Daltonics Inc (EI+) are measured.
Embodiment 1:
9,9- dimethyl -9- xanthenes -4, the synthesis of 4 '-bis- [2- (2,6- diisopropyl) aniline -2- ethyls] pyridines, reaction equation It is as follows.
Take the double boric acid (1.0g, 3.4mmol) of xanthenes, 1,6- diisopropyl para-bromoaniline (2.6g, 10.0mmol), sodium carbonate (1.0g,9.4mmol),Pd(dba)2(0.2g, 0.35mmol), triphenylphosphine (0.1g, 0.4mmol), H2O (4mL), ethanol After the mixing of (7mL) and toluene (24mL), it is stirred overnight, after reaction stops, being extracted with ethyl acetate, NaCl at room temperature Afterwards, dried with magnesium sulfate, be spin-dried for solvent, add 10mL recrystallizing methanols, filtered, it is dry, obtain pale solid 9,9- bis- Methyl -9- xanthenes -4,4 '-bis- (2,6- diisopropyls) aniline (i.e. diamine compound C) (1.0g, 54%).
Take 9,9- dimethyl -9- xanthenes -4,4 '-bis- (2,6- diisopropyl) aniline (1.0g, 1.79mmol), 2- pyridine first The p-methyl benzenesulfonic acid of aldehyde (1.30g, 12.1mmol) and 0.05 equivalent, after being dissolved in toluene (30mL), flow back 24h, during which passes through Contact plate monitors the extent of reaction.After reaction, solvent is spin-dried for, 20ml methanol is added and is recrystallized, mixture is at -20 DEG C Yellow solid, filtering, vacuum drying obtain 9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- diisopropyl) benzene imines] pyrroles Pyridine, yield 90% (1.21g).
Take 9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- diisopropyl) benzene imines] pyridines (1.21g, 2mmol), The p-methyl benzenesulfonic acid of trimethyl aluminium (12mmol) and 0.1 equivalent, is dissolved in toluene (25mL).In N2Flow back under atmosphere protection After 5h, after reaction stops, 1N ice NaOH solutions are added.Organic layer is washed with saturation NaCl solution twice, Na2SO4It is dry, it is spin-dried for Solvent, adds a large amount of n-hexanes afterwards, and filtering, gained white solid washs 3 times using n-hexane repeatedly, after vacuum drying to obtain the final product 9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- diisopropyl) aniline -2- ethyls] pyridines, 89% (1.12g).1H NMR (500MHz,CDCl3,ppm):δ 8.60 (ddd, J=5.0,1.9,1.0Hz, 2H, pydine-H), 7.52 (dtd, J=13.9, 7.6,1.8Hz, 2H, pydine-H), 7.39 (dd, J=7.5,2.0Hz, 2H, pydine-H), 7.10-7.17 (m, 10H, Pydine-H, aryl-H), 7.04 (ddt, J=7.7,2.2,1.1Hz, 2H, aryl-H), 4.11 (dd, J=8.6,4.8Hz, 2H,CHCH3),3.94(s,2H,NH),3.03(m,4H,CH(CH3)2),1.76(s,6H,xanthene-CH3),1.44(m, 6H, CHCH3), 0.95 (d, J=6.7Hz, 12H, CH (CH3) 2), 0.77 (d, J=6.8Hz, 12H, CH (CH3) 2);13C{1H} NMR(125MHz,CDCl3,ppm):δ163.6,149.3,146.9,141.2,141.0,136.2,132.7,130.7,130.4, 130.1,124.8,124.6,122.7,121.9,121.7,60.6(CHCH3),34.1(CHCH3),33.9(C(CH3)2), 33.7(C(CH3)2),27.5(CH(CH3)2),24.2(CH(CH3)2),24.1(CH(CH3)2),22.4(CH(CH3)2); HRMS(m/z):calcd for C53H63N4O:771.5002;found:771.4367[M+H]+.
Embodiment 2
9,9- dimethyl -9- xanthenes -4, the synthesis of 4 '-bis- [2- (2,6- dimethyl) aniline -2- ethyls] pyridines, reaction equation is such as Under.
Step is same as above, and input 1,6- dimethylatedρ-bromoanilines (2.0g, 10mmol), finally obtain 9,9- dimethyl -9- and account for Ton -4,4 '-bis- [2- (2,6- dimethyl) aniline -2- ethyls] pyridines, 84% (1.01g).1H NMR(500MHz,CDCl3, ppm):δ 8.44 (m, 2H, pydine-H), 7.33 (m, pydine-H), 7.19 (d, J=7.4Hz, 2H, pydine-H), 7.01 (d, J=8.0Hz, 4H, pydine-H, aryl-H), 6.9 (m, 4H, aryl-H), 6.80 (s, 4H, aryl-H), 4.31 (m, 4H, CHCH3),3.94(s,2H,NH),1.86(s,12H,aryl-CH3),1.53(m,6H,xanthene-CH3),1.36(m,6H, CHCH3);13C{1H}NMR(125MHz,CDCl3,ppm):δ164.2,149.2,147.5,143.9,136.2,130.4, 130.2,130.0,128.8,128.4,124.2,122.7,121.9,121.3,57.8(CHCH3),34.4(C(CH3)2), 32.3(C(CH3)2),23.1(CHCH3),18.8(aryl-CH3);HRMS(m/z):calcd for C45H47N4O: 659.3750;found:659.4578[M+H]+.
Embodiment 3
9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- diisopropyls) aniline -2- ethyls] pyridine nickel compositions Synthesize (Ni-A).
Take (DME) NiBr2(0.17g, 0.54mmol) and 9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- diisopropyls Base) aniline -2- ethyls] pyridine (0.21g, 0.27mmol) add Schlenk flasks in, add CH2Cl2(20mL), by mixture Be stirred at room temperature 12 it is small when.The suspension produced is filtered, is spin-dried for solvent, gained powder is washed with ether (2 × 10mL), then Vacuum drying obtains brown solid at room temperature, is Ni-A (0.21g, 67%).Elemental analysis result:C,52.78;H, 5.01;N,4.65;found:C,52.38;H,4.69;N,4.57;MALDI-TOF-MS(m/z):calcd for C53H60Br2N4Ni2O:1042.1841;found:1042.1324[M–2Br]+.
Embodiment 4
The conjunction of 9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- dimethyl) aniline -2- ethyls] pyridine nickel compositions Into (Ni-B).
Step is same as above, and has put into 9,9- dimethyl -9- xanthenes -4,4 '-bis- [2- (2,6- dimethyl) aniline -2- ethyls] pyrroles Pyridine (0.18g, 0.27mmol), obtains brown solid powder, is Ni-B (0.23g, 70%).Elemental analysis result:C, 49.41;H,4.05;N,5.12;found:C,49.38;H,3.69;N,5.47;MALDI-TOF-MS(m/z):calcd for C45H44Br2N4Ni2O:930.0569;found:930.1324[M–2Br]+
Embodiment 5
0.2mL MAO, 20mL toluene and magnetic agitation are added into the pressure-resistant glass container of 350mL heavy walls in glove box Son.Pressure bottle is connected to high pressure polymerisation pipeline, and solution is deaerated.Container is warmed to required temperature (respectively using oil bath For 20 DEG C, 40 DEG C and 60 DEG C) and it is balanced 5 minutes.Then will be molten under ethylene gas atmosphere protection by 2.5ml syringes Solution is in 2mL CH2Cl2Embodiment 3-4 in nickel complex (5 μm of ol) injection polymerization system in.Under fast stirring, will react Device pressurizes and is maintained at the ethene of 4.0atm.After half an hour, pressure release simultaneously terminates (methanol/HCl=100/ in the methanol of acidifying 3).The polymer obtained is fully washed with methanol and when 40 DEG C of vacuum drying 24 is small.
Vinyl polymerization of 1 catalyst of table under different temperatures gradienta
aPolymerizing condition:Ni=5 μm of ol;Al/Ni=500;Toluene=20mL;Dichloromethane=20mL;Time=30min;b Activity=105g·mol-1·h-1cMolecular weight=g/mol;Molecular weight is measured by high temperature GPC.
Above-mentioned oligomeric high-branched polyethylene is used to carry out pour point depression experiment in commercially available 0# diesel oil, polyethylene addition is 0.3%, the condensation point of wherein 0# diesel oil is 0, cold filter plugging point is 3 DEG C.The result is shown in table 2 below, can be effectively reduced the condensation point of diesel oil with it is cold Filter point.
2 pour point depression experimental result of table

Claims (8)

  1. A kind of 1. double-core xanthenes bridging amido-pyridine Raney nickel, it is characterised in that:The catalyst is the knot shown in formula (I) Structure:
    Wherein, R is independent methyl or isopropyl.
  2. 2. a kind of preparation method of double-core xanthenes bridging amido-pyridine Raney nickel as claimed in claim 1, its feature exist In:The preparation method step of the catalyst is as follows:
    (1) it is 3-4 by molar ratio:10 boronic acid compounds A is mixed in organic solvent with aniline compound B, adds Pd (dba)2 Stir reaction 12h-24h at room temperature with triphenylphosphine, form diamine compound C, wherein Pd (dba)2With the addition of triphenylphosphine Amount is respectively the 20% and 10% of the quality of boronic acid compounds A;
    Wherein, R is independent methyl or isopropyl;
    (2) it is 1 by molar ratio:The diamine compound C and aldehyde compound D of 6-7 is heated in organic solvent under organic acid catalysis Back flow reaction 12h-24h, forms ligand E:
    Wherein, R is independent methyl or isopropyl;
    (3) it is 1 by molar ratio:6 ligand E with trimethyl aluminium under organic acid catalysis, heating reflux reaction in organic solvent 5h-10h, forms ligand F:
    Wherein, R is independent methyl or isopropyl;
    (4) at room temperature by molar ratio be 1:2 ligand F and (DME) NiBr2Compound is reacted in organic solvent, obtains formula (I) The catalyst of shown structure, wherein, DME=1,2- dimethoxy-ethanes:
    Wherein, R is independent methyl or isopropyl.
  3. 3. the preparation method of double-core xanthenes bridging amido-pyridine Raney nickel as claimed in claim 2, it is characterised in that:Step Suddenly (2) and (3) described organic acid are formic acid, acetic acid, p-methyl benzenesulfonic acid or camphorsulfonic acid.
  4. 4. the preparation method of double-core xanthenes bridging amido-pyridine Raney nickel as claimed in claim 2, it is characterised in that:Step Suddenly (1)-step (4) described organic solvent for toluene, dimethylbenzene, chlorobenzene, tetrahydrofuran, dichloromethane, one kind in ethanol or It is a variety of.
  5. 5. a kind of application of double-core xanthenes bridging amido-pyridine Raney nickel prepared by method as claimed in claim 2, its feature It is:The catalyst prepares high-branched polyethylene for catalysed ethylene oligomerisation.
  6. 6. the application of double-core xanthenes bridging amido-pyridine Raney nickel as claimed in claim 5, it is characterised in that:It is described to urge Agent is used for catalysed ethylene oligomerisation and prepares the method for high-branched polyethylene:Under the conditions of anhydrous and oxygen-free, to the pressure-resistant glass of heavy wall Co-catalyst methylaluminoxane and aromatic solvent are added in glass container and is stirred, pressure bottle is connected with ethene pipeline, by solution Degassing, heating, is passed through ethylene gas, and be dissolved in CH2Cl2In the agent of formula (I) nickel complex as catalyst injection polymerization system in, React under fast stirring, after reaction, pressure release simultaneously terminates in the methanol of acidifying, and polyethylene is made.
  7. 7. the application of double-core xanthenes bridging amido-pyridine Raney nickel as claimed in claim 6, it is characterised in that:It is described anti- It is 0-80 DEG C to answer temperature;The reaction time is 0.5-2h;The ethylene pressure is 1-5atm.
  8. 8. the application of double-core xanthenes bridging amido-pyridine Raney nickel as claimed in claim 6, it is characterised in that:The system The molecular weight of polyethylene obtained is 1000~4000, and the degree of branching is more than 80, as diesel pour inhibitor.
CN201711155478.1A 2017-11-20 2017-11-20 Binuclear xanthene bridged amido-nickel pyridine catalyst and preparation method and application thereof Active CN107899614B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711155478.1A CN107899614B (en) 2017-11-20 2017-11-20 Binuclear xanthene bridged amido-nickel pyridine catalyst and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711155478.1A CN107899614B (en) 2017-11-20 2017-11-20 Binuclear xanthene bridged amido-nickel pyridine catalyst and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN107899614A true CN107899614A (en) 2018-04-13
CN107899614B CN107899614B (en) 2020-05-26

Family

ID=61846225

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711155478.1A Active CN107899614B (en) 2017-11-20 2017-11-20 Binuclear xanthene bridged amido-nickel pyridine catalyst and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN107899614B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111072724A (en) * 2019-12-04 2020-04-28 江苏高科石化股份有限公司 Binuclear xanthene bridged amido-pyridine palladium catalyst and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100298618A1 (en) * 2007-11-23 2010-11-25 Vugar Aliyev Catalyst composition and process for oligomerization of ethylene
CN102887969A (en) * 2012-10-19 2013-01-23 河北工业大学 Non-metallocene bimetal catalysis system for synthesizing branched polyethylene and application thereof
CN105229018A (en) * 2013-04-17 2016-01-06 瑞来斯实业公司 A kind of novel transition metal Primary Catalysts and preparation technology thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100298618A1 (en) * 2007-11-23 2010-11-25 Vugar Aliyev Catalyst composition and process for oligomerization of ethylene
CN102887969A (en) * 2012-10-19 2013-01-23 河北工业大学 Non-metallocene bimetal catalysis system for synthesizing branched polyethylene and application thereof
CN105229018A (en) * 2013-04-17 2016-01-06 瑞来斯实业公司 A kind of novel transition metal Primary Catalysts and preparation technology thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ZHENG WANG ET AL.: "Recent advances in Ni-mediated ethylene chain growth: Nimine-donor ligand effects on catalytic activity, thermal stability and oligo-/polymer structure", 《COORDINATION CHEMISTRY REVIEWS》 *
向明 等: "茂金属催化剂及其烯烃聚合物研究进展", 《塑料工业》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111072724A (en) * 2019-12-04 2020-04-28 江苏高科石化股份有限公司 Binuclear xanthene bridged amido-pyridine palladium catalyst and preparation method and application thereof

Also Published As

Publication number Publication date
CN107899614B (en) 2020-05-26

Similar Documents

Publication Publication Date Title
CN105968027B (en) Asymmetric diimine palladium catalyst and its ligand, preparation method and purposes
CN102417454B (en) Cyclic olefin compound having photoreactive group and photoreactive polymer
Zhang et al. Synthesis and reactivity of rare-earth-metal monoalkyl complexes supported by bidentate indolyl ligands and their high performance in isoprene 1, 4-cis polymerization
JP2010077128A (en) Metal complex used in metathesis
Lázaro et al. Synthesis of poly (silyl ether) s by Rhodium (I)–NHC catalyzed hydrosilylation: Homogeneous versus heterogeneous catalysis
JP6920488B2 (en) Methods for Producing Stable Thermopolymerizable Vinyl, Amino, or Oligomer Phenoxybenzoxicyclobutene Monomers with Improved Curing Rate
Qiu et al. Recent new methodologies for acetylenic polymers with advanced functionalities
CN102219785B (en) Triazine-containing benzoxazine, triazine-containing benzoxazine polymer, and preparation method thereof
CN105152970A (en) Diimine palladium catalyst with great steric hindrance, and ligand, preparation method and application thereof
TW200835773A (en) Process for preparing thiophenes
Zhang et al. Synthesis and characterization of rare-earth metal complexes supported by 2-imino or amino appended indolyl ligands with diverse hapticities: tunable selective catalysis for isoprene polymerization
CN108912009A (en) Asymmetric diimine nickel catalyst and its ligand, preparation method and purposes
He et al. Ni (II) and Pd (II) complexes bearing benzocyclohexane–ketoarylimine for copolymerization of norbornene with 5‐norbornene‐2‐carboxylic ester
You et al. Polymeric microstructures and dielectric properties of polynorbornenes with 3, 5‐bis (trifluoromethyl) biphenyl side groups by ring‐opening metathesis polymerization
Liu et al. A well-defined poly (vinyl benzoxazine) obtained by selective free radical polymerization of vinyl group in bifunctional benzoxazine monomer
CN101291961B (en) Polymerization methods using the catalysts
TWI336331B (en) Transition metal complexes and preparation methods thereof
Liu et al. Novel Ni and Pd (benzocyclohexan‐ketonaphthylimino) 2 complexes for copolymerization of norbornene with octene
Trybuła et al. N-Activated 1, 3-Benzoxazine Monomer as a Key Agent in Polybenzoxazine Synthesis
CN103254329B (en) Metal miscellaneous ligand catalyst precursor, as well as preparation and application thereof
He et al. High Tg and thermostable phytic Acid− Cured polynorbornene-based polymer by a Palladium (Ⅱ) complex bearing iminophenyl oxazolinylphenylamines ligand
Wang et al. Highly Active Neutral Nickel (II) Complexes Bearing P, N‐Chelate Ligands: Synthesis, Characterization and Their Application to Addition Polymerization of Norbornene
CN104628596A (en) Symmetrical alpha-diimine nickel complex catalyst as well as preparation method and application thereof
CN107899614A (en) A kind of double-core xanthenes bridging amido pyridine Raney nickel and its preparation method and application
Xiong et al. A one-pot approach to dendritic star polymers via double click reactions

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant