The reaction of the complex [RuClH(CO) (PPh3)3] with alkynecarboxylic acids (HO2CC≡CR; R=Ph and Me) gives the complexes [RuCl(O2CCH=CRH) (CO) (PPh3)2], which contain an η2-alkenecarboxylate ligand. The same type of compounds with R=Me can be obtained from the reaction of [RuClH(CO) (PPh3)3] with allylacetic acid (HO2CCH2CH=CH2), which is isomerized to a 2-buten-1-carboxylate ligand. The reaction of [RuClH(CO) (PPh3)3] with 4-pentynoic acid (HO2CCH2CH2C=CH) produces the compound [RuCl(O2CCH2CH2CH=CH2) (CO) (PPh3)2], which contains an η2-carboxylate ligand resulting from the hydrogenation of the alkyne group. Possible reaction mechanisms of hydrogenation and isomerization are discussed. © 1998 Elsevier Science S.A. All rights reserved.
|Journal||Inorganic Chemistry Communications|
|Publication status||Published - 1 Jan 1998|
- Alkyne complexes
- Hydride complexes
- Ruthenium complexes