Add time:08/27/2019 Source:sciencedirect.com
The thorium alkyl complex (C5Me5)2Th(CH3)2 and 2-Picoline (cas 109-06-8) react to give preferential sp3 C–H bond activation in the presence of a more reactive sp2 C–H bond, while the analogous uranium complex, (C5Me5)2U(CH3)2, reacts with only the ortho 2-picoline sp2 C–H bond, as originally expected. Herein, we describe this competitive sp3 versus sp2 C–H bond activation chemistry with 2-picoline and (C5Me5)2An(CH3)2 (An = Th, U) and provide experimental observations that suggest different mechanistic reaction pathways are operative for the uranium and thorium complexes. We also report the X-ray crystal structures for the thorium picolyl complex, (C5Me5)2Th(CH3)[η2-(N,C)-2-CH2-NC5H3], and the η2-pyridyl complexes (C5Me5)2Th(CH3)[η2-(N,C)-6-CH3-NC5H3] and (C5Me5)2U(CH3)[η2-(N,C)-6-CH3-NC5H3].
We also recommend Trading Suppliers and Manufacturers of 2-Picoline (cas 109-06-8). Pls Click Website Link as below: cas 109-06-8 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View