Bis(pentamethylcyclopentadienyl)metalldivinyl-Verbindungen des Titaniums, Zirconiums und Hafniums; Bildung von Titanacyclobutan- und Zirconacyclopent-2-en-Derivaten
-
Add time:07/20/2019 Source:sciencedirect.com
Bis(pentamethylcyclopentadienyl)metal dichlorides, CP*2MCl2 (M = Ti, Zr, Hf), react with vinyllithium in the molar ratio1/2to form the corresponding divinyl compounds Cp*2M(CH=CH2)2. The hafnium compound can be isolated pure. The titanium and zirconium compounds can be detected by low-temperature NMR spectroscopy, but they undergo rearrangements at room temperature. Cp*2Zr-(CH=CH2)2 forms an equilibrium with Cp2★ZrCH=CHCH2︹CH2as the zirconacyclopent-2-ene derivative whereas Cp*2Ti(CH=CH2)2 surprisingly is converted quantitatively into Cp2★TiC(=CH2)CH2︹CH2which exhibits a titanacyclobutane derivative with an exocyclic methylidene group.
We also recommend Trading Suppliers and Manufacturers of BIS(PENTAMETHYLCYCLOPENTADIENYL)TITANIUM DICHLORIDE (cas 11136-36-0). Pls Click Website Link as below: cas 11136-36-0 suppliers
Prev:High-performance liquid chromatography of bis(η5-l,2,3,4,5-pentamethylcyclopentadienyl)-titanium, zirconium and hafnium dichlorides
Next:Autoxidations of early transition metallocenes) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- The thermal decomposition of dibutylbis(η5-cyclopentadienyl)titanium, other dialkyl metallocenes, and di(η5-pentamethylcyclopentadienyl)titanium07/27/2019
- Silsesquioxane Chemistry, 4.07/26/2019
- Synthesis and crystal structures of μ-1,3-bis(η5-tetramethylcyclopentadienyl)-1,1,3,3-tetramethyldisiloxane)[η2-bis(trimethylsilyl)ethyne]titanium(II) and a doubly tucked-in product of its thermolysis07/25/2019
- Bis(η5-cyclopentadienyl)- and bis(η5-indenyl)metallacycles of titanium and zirconium from methylenecyclopropanes by oxidative coupling07/24/2019
- Photochemical decomposition of (diphenyl)bis(η5-cyclopentadienyl) titanium, (diphenyl)bis(η5-pentamethylcyclopentadienyl) titanium and the zirconium analogs07/23/2019
- Autoxidations of early transition metallocenes07/22/2019
- High-performance liquid chromatography of bis(η5-l,2,3,4,5-pentamethylcyclopentadienyl)-titanium, zirconium and hafnium dichlorides07/21/2019
