Synthesis, kinetics, and stereochemistry of P-C bond breaking and P-C bondmaking reactions: Ruthenium-arene binap chemistry

Authors
Geldbach, TJ Pregosin, PS Bassetti, M
Citation
Tj. Geldbach et al., Synthesis, kinetics, and stereochemistry of P-C bond breaking and P-C bondmaking reactions: Ruthenium-arene binap chemistry, ORGANOMETAL, 20(14), 2001, pp. 2990-2997
Citations number
28
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
20
Issue
14
Year of publication
2001
Pages
2990 - 2997
Database
ISI
SICI code
0276-7333(20010709)20:14<2990:SKASOP>2.0.ZU;2-8
Abstract
The syntheses of a set of new arene Ru complexes containing the ligand P(OH )(OR)Ph are reported. Kinetic results for the rapid stereospecific alcoholy sis of a Ru-(P(OH)Ph-2) moiety with ROH to give a phenyl RuP(OH)(OR)Ph frag ment are given. The protonation chemistry of this new Ru-phenyl (P(OH)(OR)P h) species, using an excess of triflic acid in CD2Cl2, affords a reaction i n which the Ru-phenyl group migrates from the metal back to the P atom with out loss of stereogenicity at the Ru atom. The ease and stereospecificity o f these reactions are rationalized.