Improved Single‐Site Chromium Catalysts with Electron Rich Indenyl Ligands for the Formation of Ultrahigh Molecular Weight Polyethylene
作者:Helge‐Boj Hansen、Hubert Wadepohl、Markus Enders
DOI:10.1002/ejic.202001157
日期:2021.4.8
fused cyclohexyl ring or a Si(CH3)3 group to the indenyl moiety improve complex stability, solubility and catalytic activity compared to the unsubstituted analogues. Furthermore, the ability to incorporate 1‐hexene into the polymer chain increased. Ultrahighmolecularweightpolyethylene (UHMW‐PE) or linear low density polyethylene (LLD‐PE) with very high molecularweight was obtained. Although other catalysts
Enantioselective Aziridination of Unactivated Terminal Alkenes Using a Planar Chiral Rh(III) Indenyl Catalyst
作者:Patrick Gross、Hoyoung Im、David Laws、Bohyun Park、Mu-Hyun Baik、Simon B. Blakey
DOI:10.1021/jacs.3c10637
日期:2024.1.17
approach utilizing a planar chiral rhodium indenyl catalyst to facilitate the enantioselective aziridination of unactivatedalkenes. This transformation exhibits a remarkable degree of functional group tolerance and displays excellent chemoselectivity favoring unactivatedalkenes over their activated counterparts, delivering a wide range of enantioenriched high-value chiral aziridines. Computational