Patent ID: 11911749
Assignee: SK INNOVATION CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 12:
13. The ethylene oligomerization catalyst of claim 12, wherein the heteroatom ligand is represented by the following Chemical Formula 6:, wherein
R11 and R12 are independently of each other C6-C20 aryl, C6-C20 arylC1-C10 alkyl, C6-C20 arylC2-C10 alkenyl, C6-C20 arylC2-C10 alkynyl, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C1-C10 alkoxy, C6-C20 aryloxy, C1-C10 alkoxycarbonyl, C1-C10 alkylcarbonyloxy, C2-C10 alkenylcarbonyloxy, C2-C10 alkynylcarbonyloxy, aminocarbonyl, C1-C10 alkylcarbonylamino, C2-C10 alkenylcarbonylamino, C2-C10 alkynylcarbonylamino, C3-C10 cycloalkyl, mercaptoC1-C10 alkyl, mercaptoC2-C10 alkenyl, mercaptoC2-C10 alkynyl, C3-C20 heteroaryl, 5-membered to 7-membered heterocycloalkyl, —NRa1Rb1 or —SiRc1Rd1Re1;
Ra1 and Rb1 are independently of each other hydrogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C6-C20 aryl, C1-C10 alkylamino, C2-C10 alkenylamino, or C2-C10 alkynylamino;
Rc1 is C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, or C6-C20 aryl;
Rd1 and Re1 are independently of each other hydrogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, or C6-C20 aryl;
R21 is C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C6-C20 aryl, C6-C20 arylC1-C10 alkyl, C6-C20 arylC2-C10 alkenyl, C6-C20 arylC2-C10 alkynyl, C3-C10 cycloalkyl, C3-C20 heteroaryl, 5-membered to 7-membered heterocycloalkyl, C1-C10 alkoxy, C6-C20 aryloxy, C1-C10 alkoxycarbonyl, C1-C10 alkylcarbonyloxy, C2-C10 alkenylcarbonyloxy, C2-C10 alkynylcarbonyloxy, aminocarbonyl, C1-C10 alkylcarbonylamino, C2-C10 alkenylcarbonylamino, C2-C10 alkynylcarbonylamino, —NRa2Rb2, or —SiRc2Rd2Re2;
Ra2 and Rb2 are independently of each other hydrogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, or C6-C20 aryl;
Rc2 is C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, or C6-C20 aryl;
Rd2 and Re2 are independently of each other hydrogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, or C6-C20 aryl;
ring C and ring D are independently of each other benzene or naphthalene;
R22 and R23 are hydrogen, C1-C10 alkyl, C6-C20 aryl, C3-C10 cycloalkyl, C6-C20 arylC1-C10 alkyl, or C1-C10 alkylC6-C20 aryl; and
the aryl, the arylalkyl, the alkyl, the arylalkenyl, the alkenyl, the arylalkynyl, the alkynyl, the alkoxy, the aryloxy, the cycloalkyl, the heteroaryl, and the heterocycloalkyl of R11 and R12, and the alkyl, the alkenyl, the aryl, the aralkyl, the aralkenyl, the aralkynyl, the cycloalkyl, the heteroaryl, the heterocycloalkyl, the alkoxy, the aryloxy, the alkoxycarbonyl, the alkylcarbonyloxy, the alkenylcarbonyloxy, the alkynylcarbonyloxy, the aminocarbonyl, the alkylcarbonylamino, the alkenylcarbonylamino, or the alkynylcarbonylamino of R21 may be further substituted by one or more selected from the group consisting of halogens, C1-C10 alkyl, haloC1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, alkoxy, haloC1-C10 alkoxy, C6-C20 aryl, C6-C20 aryloxy, 5-membered to 7-membered heterocycloalkyl, —NRa4Rb4, and —SiRc4Rd4Re4; and Ra4 and Rb4 are independently of each other hydrogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, or C6-C20 aryl, and Rc4 to Re4 are independently of each other C1-C10 alkyl or C1-C10 alkoxy.