## Abstract 1‐Butene polyinsertion promoted by two typical __C__~2~‐symmetric zirconocene catalysts (i.e. __rac__‐ethylenebis(1‐indenyl)ZrCl~2~ (1) and __rac__‐dimethylsilylbis(1‐indenyl)ZrCl~2~) (2) was investigated under both hydrooligomerization and polymerization conditions and compared with th
C2-symmetric ansa-metallocene catalysts for propene polymerization: Stereoselectivity and enantioselectivity
✍ Scribed by Vincenzo Busico; Roberta Cipullo; Lucia Caporaso; Giancarlo Angelini; Anna Laura Segre
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 258 KB
- Volume
- 128
- Category
- Article
- ISSN
- 1381-1169
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📜 SIMILAR VOLUMES
## Abstract Summary: The influence of perfluoroborate anions on catalyst activity and stereospecificity has been determined for propene polymerisations at 20–60 °C. For __C__~2~‐symmetric __ansa__‐zirconocenes, activities were strongly ligand‐dependent, with systems activated by TIBA/Ph~3~C^+^X^−^,
## Abstract The acid‐catalyzed reaction between formaldehyde and 1__H__‐indene, 3‐alkyl‐ and 3‐aryl‐1__H__‐indenes, and six‐membered‐ring substituted 1__H__‐indenes, with the 1__H__‐indene/CH~2~O ratio of 2 : 1, at temperatures above 60° in hydrocarbon solvents, yields 2,2′‐methylenebis[1__H__‐inde