Associative stereomutation of a pentacoordinate transition-metal complex: Access to the required octahedral intermediate through stereoselective CO uptake at an unsaturated ruthenium(II) center

Authors
Bushnell, GW Casado, MA Stobart, SR
Citation
Gw. Bushnell et al., Associative stereomutation of a pentacoordinate transition-metal complex: Access to the required octahedral intermediate through stereoselective CO uptake at an unsaturated ruthenium(II) center, ORGANOMETAL, 20(4), 2001, pp. 601-603
Citations number
28
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
20
Issue
4
Year of publication
2001
Pages
601 - 603
Database
ISI
SICI code
0276-7333(20010219)20:4<601:ASOAPT>2.0.ZU;2-F
Abstract
Reaction of SiH(Me)(CH2CH2CH2PPh2)(2) (i.e. "biPSiH") with mer-RuH(PPh3)(3) (CO)Cl affords the 5-coordinate Ru(III monocarbonyl chloride Ru(biPSi)(CO)C l (1) which adds CO to yield the 6-coordinate dicarbonyl analogue Ru(biPSi) (CO)(2)Cl (2) Stereoselective incorporation of (CO)-C-13 to give the labele d analogue 2* shows that on subsequent heating in refluxing toluene 1 is re generated as a mixture of syn and anti diastereomers (ca. 3:1 ratio).