Abstract
3a,7a-Azaborindene (14) has been prepared by two multistep syntheses using the Grubbs ring-closing metathesis from appropriate B-vinyl,N-allyl- aminoboranes. 14 was deprotonated by KN(SiMe 3) 2 to give 3a,7a-azaborindenylpotassium (5). The reaction of 5 with Cp*ZrCl 3 afforded the corresponding Zr(IV) complex 18, which on activation with excess methylaluminoxane, forms a good catalyst for the polymerization of ethylene. The reaction of 5 with methylene chloride and BuLi gave 4a,8a-azaboranaphthalene (6), which is isoelectronic and isostructural with naphthalene. DFT calculations on 6 gave a structure that is in good agreement with X-ray diffraction data.
Original language | English |
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Pages (from-to) | 513-518 |
Number of pages | 6 |
Journal | Organometallics |
Volume | 25 |
Issue number | 2 |
DOIs | |
Publication status | Published - 16 Jan 2006 |
Externally published | Yes |