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Joung UG, Wu CJ, Lee SH, Lee CH, Lee EJ, Han WS, Kang SO, Lee BY. Phenylene-Bridged Cp/Carboxamide Ligands for Titanium Complexes of Various Binding Modes and Their Ethylene/1-Octene Copolymerization. Organometallics 2006. [DOI: 10.1021/om060604x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ui Gab Joung
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Chun Ji Wu
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Sang Hoon Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Choong Hoon Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Eun Jung Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Won-Sik Han
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Sang Ook Kang
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Bun Yeoul Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, LG Chem Ltd./Research Park, 104-1, Munji-dong, Yuseong-gu, Daejon 305-380, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
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Joe DJ, Wu CJ, Bok T, Lee EJ, Lee CH, Han WS, Kang SO, Lee BY. o-Phenylene-bridged Cp/sulfonamido titanium complexes for ethylene/1-octene copolymerization. Dalton Trans 2006:4056-62. [PMID: 17028715 DOI: 10.1039/b605345a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Suzuki-coupling reaction of 2-(dihydroxyboryl)-3,4-dimethyl-2-cyclopenten-1-one and 2-(dihydroxyboryl)-3-methyl-2-cyclopenten-1-one with 2-bromoaniline derivatives affords cyclopentenone compounds from which cyclopentadiene compounds, 4,6-R'(2)-2-(2,5-Me2C5H3)C6H2NH2 and 4,6-R'(2)-2-(2,3,5-Me3C5H2)C6H2NH2 are prepared. After sulfonation of the -NH2 group with p-TsCl, metallation is carried out by successive addition of Ti(NMe2)4 and Me2SiCl2 affording o-phenylene-bridged Cp/sulfonamido titanium dichloride complexes, [4,6-R'(2)-2-(2,5-Me2C5H2)C6H2NSO2C6H4CH3)]TiCl2 (R'=H, ; R'=Me, ; R'=F, ) and [4,6-R'(2)-2-(2,3,5-Me3C5H)C6H2NSO2C6H4CH3)]TiCl2 (R'=H, ; R'=Me, ; R'=F, ). The molecular structures of and [2-(2,5-Me2C5H2)C6H4NSO2C6H4CH3)]Ti(NMe2)2 are determined by X-ray crystallography. The Cp(centroid)-Ti-N angle in is smaller (100.90 degrees) than that observed for the CGC (constrained-geometry catalyst), [Me2Si(eta5-Me4Cp)(NtBu)]TiCl2 (107.6 degrees) indicating a more "constrained feature" in than in the CGC. Complex shows the highest activity among the newly prepared complexes in ethylene/1-octene copolymerization but it is slightly inferior to the CGC in terms of activity, comonomer-incorporation ability, and molecular weight of the obtained polymers.
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Affiliation(s)
- Dae June Joe
- Department of Molecular Science and Technology, Ajou University, Suwon, 443-749, Korea
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Cho DJ, Wu CJ, S S, Han WS, Kang SO, Lee BY. o-Phenylene-Bridged Cp/Amido Titanium Complexes for Ethylene/1-Hexene Copolymerizations. Organometallics 2006. [DOI: 10.1021/om0601854] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dae Joon Cho
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Chun Ji Wu
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Sujith S
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Won-Sik Han
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Sang Ook Kang
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
| | - Bun Yeoul Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Korea, and Department of Chemistry, Korea University, 208 Seochang, Chochiwon, Chung-nam 339-700, Korea
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