CN1139605C - 硅桥连茂金属化合物的合成及应用 - Google Patents

硅桥连茂金属化合物的合成及应用 Download PDF

Info

Publication number
CN1139605C
CN1139605C CNB001327550A CN00132755A CN1139605C CN 1139605 C CN1139605 C CN 1139605C CN B001327550 A CNB001327550 A CN B001327550A CN 00132755 A CN00132755 A CN 00132755A CN 1139605 C CN1139605 C CN 1139605C
Authority
CN
China
Prior art keywords
metallocene compound
bridged metallocene
silicon
silicon bridged
reacts
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.)
Expired - Fee Related
Application number
CNB001327550A
Other languages
English (en)
Other versions
CN1289784A (zh
Inventor
徐善生
王佰全
周秀中
田公路
崔惠玲
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.)
Nankai University
Original Assignee
Nankai 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 Nankai University filed Critical Nankai University
Priority to CNB001327550A priority Critical patent/CN1139605C/zh
Publication of CN1289784A publication Critical patent/CN1289784A/zh
Application granted granted Critical
Publication of CN1139605C publication Critical patent/CN1139605C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

本发明涉及硅桥连茂金属化合物的合成。它是通式(I)化合物,其中,M=Zr,n′=1:R=Me,n=4,R′=H;M=Zr、Ti,n′=2,R=But,n=1,R′=But;M=Ti,n′=3,R=But,n=1,R′=But。将环戊二烯先和二氯硅烷反应,经减压蒸馏得到纯的一氯代硅烷,再与环戊二烯反应,得到硅桥连配体再与金属氯化物反应。本发明与MAO配合使用,用于乙烯聚合的催化剂,催化活性高,其活性达到了1.08×107gPE/mol·Zr·h。

Description

硅桥连茂金属化合物的合成及应用
技术领域
本发明涉及硅桥连茂金属化合物的合成及应用。
背景技术
已用于乙烯聚合茂金属硅桥连化合物,如下面所示:
Figure C0013275500031
W.Kaminsky,M.Arndt.Advanced in Polymer Science,1997,127,143(Springer-verlag,BerlinHerdelberg);L.Resconi,R.L.Jones.Organometallic,1996,15,998-1005;K.Patsidis,H.G.AltJ.Organomet.Chem.,1996,509,115。
硅桥连二端为不对称的环戊二烯基的茂金属化合物报道较少,且合成方法不明确。
发明内容
本发明的目的是提供一种硅桥连茂金属化合物,它的通式为(I):
Figure C0013275500032
其中,M=Zr,n’=1,R=Me,n=4,R’=H;
  M=Zr、Ti,n’=2,R=But,n=1,R’=But
  M=Ti,n’=3,R=But,n=1,R’=But
本发明是在-78-0℃下,将位阻大的取代环戊二烯负离子化,然后同至少2.5倍量的氯硅烷反应4~24h,分离提纯,得到一氯代硅烷中间体,然后此中间体再同位阻较小的取代环戊二烯负离子在-78℃-0℃下反应12-24h,分离提纯,得到不对称的硅桥连环戊二烯配体。在0℃下,将此配体负离子化反应24-48h,再和金属氯化物反应36-48h,得到目标产物。其具体合成方法步骤如下:
Figure C0013275500041
Figure C0013275500042
本发明与MA0配合,可用于乙烯聚合,其活性可达到10.8kgPE/mmol.Zrh以上。
具体实施方式
实例1化合物1的合成:
在装有磁子的250mL三口瓶中,加入3.34g(10.0mmol)TiCl4·2THF和50mL THF。在0℃搅拌下滴加[Li(C5H4)SiMe2(C5HMe4)Li](10.0mmol)的THF溶液。完后室温反应2h,然后加热回流24h,得深红色溶液。真空除去所有溶剂,残留物中加入80mL CH2Cl2,过滤除去无机盐。滤液浓缩后冷冻,析出红色片状晶体。过滤,得1.1g红色片状晶体1。1的元素分析和1H NMR数据见表4.1和4.2中;MS(intensity%):360(40,M+),324(49,[M-HCl]+),290(10,[M-Cl2]+),288(73,[M-2 HCl]+),267[11,M-Me2SiCl]+),265(14),240(17,[M-C5H4]+),242(14,M-Cl2-Ti)+),230(12,[M-2 HCl-Me2Si]+),121(17,[C5HMe4]+),120(40,[C5Me4]+),118(55,[TiCl2]+),105(60,[C5Me3]+),95(40,[C5HMe4-C2H2]+),93(100,[Me2SiCl]+),83(56,[TiCl]+),77(35,C6H5 +).化合物2的合成
2用与1类似的方法制得。3.85g(10.2mmol)ZrCl4·2THF与等摩尔的配体双锂盐在THF溶液中室温反应12h,然后加热回流12h,得到2.0g淡黄绿色晶体2。2的元素分析和1H NMR数据见表4.1和4.2中;MS(intensity %):402(34,M+),367(47,[M-Cl]+),366(84,[M-HCl]+),351(25,[M-HCl-CH3]+),330(11,[M-2 HCl]+),315(7,[M-2 HCl-CH3]+),311(14,[M-Me2SiCl]+),309(20),307(26),282(9,[M-C5Me4]+),229(26),227(25),203(21),190(21),177(27),164(23),121(10,[C5HMe4]+),119(30,[C5HMe4-H2]+),115(14,[C5HMe4-CH4]+),95(39,[C5HMe4-C2H2]+),93(100,[Me2SiCl]+)。
实例2化合物3的合成
100mL Schlenk瓶中加入2.22g(6.2mmol)配体Me2Si(3-But-(C5H4))2及50mL THF,0℃滴加6.2mL(2.0N,12.4mmol)n-BuLi的己烷溶液。室温搅拌6h,得淡黄色双锂盐溶液。3.70g(9.8mmol)ZrCl4·2THF溶于60mL THF,室温加入等摩尔的配体双负离子溶液,室温反应12h,加热回流12h,真空除去所有溶剂,然后用与2相同的方法处理,得到0.54g白色晶体3。3的元素分析和1H NMR数据见表4.1和4.3中;MS(intensity%):516(100,M+),481(4,[M-Cl]+),445(7,[M-Cl-HCl]+),423(69,[M-Cl-Me2Si]+),407(18,[M-HCl-Me3Si]+),371(9,[M-Me3Si-2 HCl]+),163(29,[CpButSiMe]+),73(31,Me3Si+)。表l化合物l~3的分析数据
Comp.  Formula  Color  Yield(%) Analysis Found(Required)
C(%) H(%)
l  C16H22Cl2SiTi  deep-red  3l 52.99(53.20) 5.97(6.14)
2  C16H22Cl2SiZr  pale-green  49  47.39(47.50) 5.44(5.48)
3  C22H36Cl2Si2Zr  white  11  50.70(50.93) 7.67(6.99)
表1化合物1-~31H NMR数据
    Complex     δC5H4(Δδ)     δC5Me4(Δδ)     δSiMe2
    1     7.17(t,2)5.57(t,2)(1.60)     2.10(s,6)1.82(s,6)(0.28)     0.85(s,6)
    2     6.99(t,2)5.69(t,2)(1.30)     2.01(s,6)1.91(s,6)(0.10)     0.83(s,6)
    meso-3     6.65(t,2)6.57(t,2)6.43(t,2)     1.30(s,18)     0.43(s,6)0.36(s,6)
实例3
乙烯聚合实验在特制的带夹套的250mL三口瓶中进行。该三口瓶装上电动搅拌,用N2气充排三次,真空状态下充入乙烯气体,由电磁阀控制体系压力略高于1atm。加入100mL甲苯,恒温10min使乙烯气体饱和。然后依次加入MAO和催化剂的甲苯溶液,记录配气罐内压力随聚合时间的变化。聚合一定时间后,加入100mL酸化乙醇(含10%HCl)终止反应。抽滤,用100mL乙醇洗涤。得到的聚合物于60℃真空干燥至恒重。称重,计算催化活性。聚合物的分子量用凝胶渗透色谱(GPC)测定。表31~3/MAO乙烯聚合结果
  Catalyst   Tp(℃)     Yield(g)     A  Mη(×10-4)     Mw/Mn
1     204060     0.460.640.53     0.310.420.35
2     304050607080     3.002.732.756.9616.2010.08     2.001.821.834.6410.86.72     19.412.08.076.355.203.37     2.602.862.772.592.212.44
meso-3     304060     3.132.692.10     2.091.791.40     7.075.674.41     3.17
Polymerization conditions:[M]=3.0×10-6mol,Al/Zr=2500,t=30min,1atm of monomerpressure,in 100mL toluene.A:activity(kgPE/mmol·Zr·h);Mη:g/mol,determined by GPC in o-C6H4Cl2 at 135℃

Claims (3)

1、一种硅桥连茂金属化合物,其特征在于它的通式为(I):其中,M=Zr,n’=1,R=Me,n=4,R’=H;或M=Zr,n’=2,R=But,n=1,R’=But
  M=Ti,n’=3,R=But,n=1,R’=But;或M=Ti,n’=2,R=But,n=1,R’=But
2、权利要求1所说的硅桥连茂金属化合物的合成方法,其特征在于它的合成步骤是:在-78-0℃下,将取代环戊二烯负离子化,然后同至少2.5倍量的氯硅烷反应4~24h,分离,得到一氯代硅烷中间体,然后此中间体再同取代环戊二烯负离子在-78℃-0℃下反应12-24h,分离,得到不对称的硅桥连环戊二烯配体;在0℃下,将此配体负离子化反应24-48h,再和金属氯化物反应36-48h,得到目标产物。
3、权利要求1所说的硅桥连茂金属化合物与MAO配合用于乙烯聚合。
CNB001327550A 2000-11-17 2000-11-17 硅桥连茂金属化合物的合成及应用 Expired - Fee Related CN1139605C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB001327550A CN1139605C (zh) 2000-11-17 2000-11-17 硅桥连茂金属化合物的合成及应用

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB001327550A CN1139605C (zh) 2000-11-17 2000-11-17 硅桥连茂金属化合物的合成及应用

Publications (2)

Publication Number Publication Date
CN1289784A CN1289784A (zh) 2001-04-04
CN1139605C true CN1139605C (zh) 2004-02-25

Family

ID=4595377

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001327550A Expired - Fee Related CN1139605C (zh) 2000-11-17 2000-11-17 硅桥连茂金属化合物的合成及应用

Country Status (1)

Country Link
CN (1) CN1139605C (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4062929B2 (ja) * 2002-02-08 2008-03-19 住友化学株式会社 遷移金属錯体、配位子、オレフィン重合用触媒およびオレフィン重合体の製造方法
US8637616B2 (en) 2010-10-07 2014-01-28 Chevron Philips Chemical Company Lp Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects
US8629292B2 (en) 2010-10-07 2014-01-14 Chevron Phillips Chemical Company Lp Stereoselective synthesis of bridged metallocene complexes
US8609793B2 (en) 2010-10-07 2013-12-17 Chevron Phillips Chemical Company Lp Catalyst systems containing a bridged metallocene
US11369949B2 (en) * 2018-06-04 2022-06-28 Exxonmobil Chemical Patents Inc. Metallocenes with Si—Si bridges

Also Published As

Publication number Publication date
CN1289784A (zh) 2001-04-04

Similar Documents

Publication Publication Date Title
ES2131058T5 (es) Procedimiento para la preparacion de un compuesto de metaloceno puenteado, asi como un componente catalitico y un procedimiento para la polimerizacion de olefinas.
JP3010349B2 (ja) 付加重合触媒及び付加重合方法
US5807936A (en) Transition metal compound
Zhang et al. Structure− Reactivity Relationships in Bimolecular-Activated Monomer Polymerization of (Meth) acrylates Using Oxidatively Activated Group 14 Ketene Acetals
EP2220101B1 (en) Transition metal compounds
ES2216474T3 (es) Compuestos de bis cicoplentadienilo con enlaces de un solo carbono y complejos de metaloceno de los mismos.
CN1139605C (zh) 硅桥连茂金属化合物的合成及应用
EP1358227A2 (en) A catalyst system and its use in a polymerization process
EP1066296B1 (de) Neue dendrimere verbindungen, ein verfahren zu deren herstellung sowie deren verwendung als katalysatoren
CN105273000A (zh) 不对称限制构型双核茂金属化合物及其制备方法与应用
Gómez-Ruiz et al. Synthesis, hydrosilylation reactivity and catalytic properties of group 4 ansa-metallocene complexes
CN105273010A (zh) 一种限制构型双核茂金属化合物及其制备方法与应用
Huang et al. Synthesis and Structure Characterization of 2‐(Dimethylaminomethyl) pyrrolate and 2, 5‐Bis (dimethylaminomethyl) pyrrolate Zirconium Complexes
CN100556910C (zh) 双桥双核茂金属化合物及其制备方法和应用
Lee et al. Ethylene-bridged pseudo-Cs symmetric ansa-zirconocene complexes: synthesis, structures and propylene polymerization behavior
Alt et al. Mono, di and tetranuclear ansa zirconocene complexes as catalysts for the homogeneous and heterogeneous polymerization of ethylene
US6696532B2 (en) Phosphinimine methanide transition metal catalysts
Severn et al. Silsesquioxane-bonded zirconocene complexes; soluble models for silica-tethered olefin polymerization catalysts
Schumann et al. Synthesis, crystal structure and catalytic activity of some new chiral ansa-metallocenes of yttrium, lanthanum, samarium, lutetium and of zirconium
JPS5846128B2 (ja) オレフイン重合に用いる高活性触媒
Pinkas et al. Dehydrocoupling of SiMe 2 H substituents in permethylated zirconocene complexes
JP3975085B2 (ja) オレフィン重合触媒
Lee et al. Control of symmetry in active cationic ansa-zirconocene species: catalyst preparation, characterization and ethylene–norbornene copolymerization
CN105884819B (zh) 一种五配位亚胺钛化合物及其制备方法和应用
Koch et al. PH-functionalised phosphanylalkyl (silyl) cyclopentadienyl ligands:: Synthesis and catalytic properties of [{(η5-C5H4) CMe2PHtBu} MCl3](M= Ti, Zr) and [{(η5-C5H4) SiMe2PHR} ZrCl3](R= Ph, Cy)

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee