The nature of the preferred chain-carrying metallacarbene intermediate in metathesis reactions involving alk-1-enes
作者:Lajos Bencze、Kenneth J. Ivin、John J. Rooney
DOI:10.1039/c39800000834
日期:——
from the cross-metathesis of norbornadiene (NBD) with hex-1-ene and of cyclopentene (CP) with octa-1,7-diene (1,7-OD), respectively, show that the complexed alkylidenes; RCH[Mt](where [Mt] denotes the metal site with the ligands attached), are much preferred to the complexed methylene, CH2[Mt], as chain carriers formed by the reactions of the terminalolefins; but CH2[Mt], when formed, is highly reactive