Zirconocene dichloride complexes with a 1,2-naphthylidene bridge as catalysts for the polymerisation of ethylene and propylene
摘要:
Ansa-zirconocene dichloride complexes containing a 9-fluorenyl group at the 1-position of naphthalene and a 2-indenyl 12, 1-indenyl 13, or cyclopentadienyl 14 group at the 2-position of the naphthalene were synthesised and characterised. The molecular structures of the complexes have been determined by single crystal X-ray diffraction studies. After activation with excess methyl-alumoxane (MAO). the complexes were used as homogeneous catalysts for the homopolymerisation of ethylene and propylene. (C) 2004 Elsevier B.V. All rights reserved.
A new synthesis of 3-substituted-1H-indenes through reaction of o-(β-magnesioalkyl)phenylmagnesium dihalides with carboxylate esters
作者:Robert W. Baker、Michael A. Foulkes、Michael Griggs、Bao N. Nguyen
DOI:10.1016/s0040-4039(02)02344-4
日期:2002.12
A new synthesis of 3-substituted-1H-indenes has been developed through the reaction of o-(β-magnesioalkyl)phenylmagnesium dihalides with carboxylate esters, followed by dehydration of the intermediate 1-substituted-1-indanols. Di-Grignard reagents allowing the synthesis of 3-substituted-, 2-methyl-3-substituted-, and 4-methyl-3-substituted-1H-indenes have been prepared, with overall yields for the
Zirconocene dichloride complexes with a 1,2-naphthylidene bridge as catalysts for the polymerisation of ethylene and propylene
作者:Helmut G Alt、Robert W Baker、Mahmoud Dakkak、Michael A Foulkes、Marc O Schilling、Peter Turner
DOI:10.1016/j.jorganchem.2004.03.021
日期:2004.6
Ansa-zirconocene dichloride complexes containing a 9-fluorenyl group at the 1-position of naphthalene and a 2-indenyl 12, 1-indenyl 13, or cyclopentadienyl 14 group at the 2-position of the naphthalene were synthesised and characterised. The molecular structures of the complexes have been determined by single crystal X-ray diffraction studies. After activation with excess methyl-alumoxane (MAO). the complexes were used as homogeneous catalysts for the homopolymerisation of ethylene and propylene. (C) 2004 Elsevier B.V. All rights reserved.