A highly efficient olefin metathesis initiator: improved synthesis and reactivity studies
作者:Aideen M Dunne、Stefan Mix、Siegfried Blechert
DOI:10.1016/s0040-4039(03)00346-0
日期:2003.3
The synthesis of ligand 8, required for the preparation of catalyst 4c has been optimised. Ligand exchange studies indicate that biphenyl-based alkylidene 4c initiates considerably faster than its unsubstituted analogue 4a. The performance of 4c in ring-opening cross metathesis reactions involving substrates containing unprotected chelating atoms is also reported. (C) 2003 Elsevier Science Ltd. All rights reserved.