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Developing a fulvene route to C1-bridged “constrained geometry” Ziegler catalyst systems

✍ Scribed by Axel Bertuleit; Martin Könemann; Lothar Duda; Gerhard Erker; Roland Fröhlich


Book ID
110386089
Publisher
Springer
Year
1999
Tongue
English
Weight
281 KB
Volume
7
Category
Article
ISSN
1022-5528

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Formation of a Constrained-Geometry Zieg
✍ Lothar Duda; Gerhard Erker; Roland Fröhlich; Frank Zippel 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 426 KB 👁 1 views

6-Amino-6-methylfulvene (4) is cleanly N-acylated by formation of [(C 5 H 4 )C(=CH 2 )NCOCMe 3 ]Zr(NEt 2 ) 2 (11) (70 % isolated), and the reaction of 8b with (Et 2 N) 2 ZrCl 2 yields treatment with pivaloylchloride/triethylamine to give the fulvene (C 5 H 4 )=C(CH 3 )NHCOCMe 3 (5c). Treatment of 4