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METHOD FOR PREPARING TRANSITION METAL COMPLEXES, TRANSITION METAL COMPLEXES PREPARED USING THE MATHOD, CATALYSTS COMPOSITION CONTAINING THE COMPLEXES
METHOD FOR PREPARING TRANSITION METAL COMPLEXES, TRANSITION METAL COMPLEXES PREPARED USING THE MATHOD, CATALYSTS COMPOSITION CONTAINING THE COMPLEXES
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机译:制备过渡金属配合物的方法,使用mathod制备的过渡金属配合物,包含该配合物的催化剂组合物
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摘要
A method for preparing a transition metal compound is provided to obtain the transition metal compound simply with high yield by blocking a side reaction of N using a compound including a protecting group. A transition metal compound is provided to maintain a firm pentagonal ring structure around a metal site by an amido group linked to a phenylene bridge and allow monomers to approach easily. A catalyst composition comprising the transition metal compound is provided to be applied for co-polymerization of ethylene and a highly hindered monomers, thereby preparing a linear polyolefin with low density and a polyolefin copolymer with ultra-low density. A method for preparing a transition metal compound comprises the steps of: (a) after reacting an amine-based compound represented by a formula(1) with alkyl lithium, adding a compound including a protecting group R0 thereto to prepare a compound represented by a formula(2); (b) after reacting the compound of the formula(2) with alkyl lithium, adding a ketone based compound represented by a formula(3) to prepare an amine-based compound represented by a formula(4); (c) reacting the compound of the formula(4) with n-butyl lithium to prepare a di-lithium compound represented by a formula(5); and (d) reacting a compound of the formula(5) with MCl4(where M is Ti, Zr or Hf) and an organic lithium compound to prepare a transition metal compound represented by a formula(6), wherein R0 is a protecting group; each R1, R2, R3 and R4 is independently H, silyl, C1-20 alkyl, C5-20 aryl, C2-20 alkenyl, C6-20 alkylaryl, C6-20 arylalkyl, or a metalloid of a group XIV metal substituted with C1-20 hydrocarbyl, or at least two of the R1, R2, R3 and R4 may be linked to each other by C1-20 alkylidene including C1-20 alkyl or C5-20 aryl to form a ring; each R5, R6, R7 and R8 is independently H, halogen, C1-20 alkyl, or C5-20 aryl, or at least two of the R5, R6, R7 and R8 may be linked to each other to form C5-20 aliphatic or aromatic ring; R9 is H, C1-20 branched, linear or cyclic alkyl, or C5-20 aryl, or the R8 and R8 may be linked to each other to form C5-20 aliphatic or aromatic ring; M is a group IV transition metal; and each Q1 and Q2 is independently halogen, C1-20 alkyl amino, C5-20 arylamido, C1-20 alkyl, C2-20 alkenyl, C5-20 aryl, C6-20 alkylaryl, C6-20 arylalkyl, or C1-20 alkylidene. A catalyst composition comprises the transition metal compound of the formula(6) and at least one co-catalyst compound selected from the group consisting of a compound represented by a formula(10) of -[Al(R22)O]a-(wherein R22 is halogen, C1-20 hydrocarbyl, or halogen substituted C1-20 hydrocarbyl, and a is an integer of at least 2), a compound represented by a formula(11) of D(R22)3(where D is Al or B, and the R22 is the same as defined above), and a compound represented by a formula(12) of [L-H]^+[Z(A)4]^- or [L]^+[Z(A)4]^-(where L is neutral or cationic lewis acid; H is hydrogen atomic value; Z is a group XIII element; A is C6-20 aryl or C1-20 alkyl which may be substituted with at least one substituent selected from the group consisting of halogen, C1-20 hydrocarbyl, C1-20 alkoxy or C6-20 aryloxy).
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