Invention Grant
- Patent Title: Transition metal catalysts containing bidentate ligands and method of using and preparing same
- Patent Title (中): 含二配位体的过渡金属催化剂及其制备方法
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Application No.: US08872659Application Date: 1997-06-10
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Publication No.: US06759493B1Publication Date: 2004-07-06
- Inventor: Sandor Nagy , Leonard V. Cribbs , Bradley P. Etherton , Mary Cocoman , Ramesh Krishnamurti , John A. Tyrell
- Applicant: Sandor Nagy , Leonard V. Cribbs , Bradley P. Etherton , Mary Cocoman , Ramesh Krishnamurti , John A. Tyrell
- Main IPC: C08F444
- IPC: C08F444

Abstract:
Disclosed is a novel bidentate pyridine transition metal catalyst having the general formula where each R is independently hydrogen, C1-6 alkyl, or C6-14 aryl; where each R′ is independently R, C1-6 alkoxy, C7-20 alkaryl, C7-20 aralkyl, halogen, or CF3; where M is a Group 3 to 10 metal; where each X is independently halogen, C1-6 alkyl, C6-14 aryl, C7-20 alkaryl, C7-20 aralkyl, C1-6 alkoxy, or L is X, cyclopentadienyl, C1-16 alkyl-substituted cyclopentadienyl, fluorenyl, indenyl, or where n is an integer from 1 to 4; a is an integer from 1 to 3; b is an integer from 0 to 2; the sum of a+b≦3; c is an integer from 1 to 6; and the sum a+b+c equals the oxidation state of M.
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