Tungsten-Catalyzed Alkyne Metatheses in Transition-Metal Coordination Spheres:  Versatile New Syntheses of Metallamacrocycles

Autor: Bauer, E. B., Szafert, S., Hampel, F., Gladysz, J. A.
Zdroj: Organometallics; May 2003, Vol. 22 Issue: 11 p2184-2186, 3p
Abstrakt: The title reaction (10−15 mol % of (t-BuO)3W(&tbd1;C-t-Bu), chlorobenzene, 80 °C) is applied to octahedral and square-planar 18- and 16-valence-electron rhenium, ruthenium, and platinum complexes with cis- or trans-Ph2P(CH2)6C&tbd1;CCH3 ligands. NMR analyses show ca. 90−70% educt conversions, and 17-membered diphosphine chelates have been isolated in 59−47% yields and crystallographically characterized.
Databáze: Supplemental Index