Remarkably Favorable Hydration of Carbonyl Substituents in Dicationic Bis(arene) Ruthenium Complexes
作者:Elsa L. Velarde、Rosary A. Stephen、Rena N. Mansour、Linh T. Hoang、David J. Burkey
DOI:10.1021/ja028896q
日期:2003.2.1
The addition of water and methanol to the carbonyl substituents in the dicationic bis(arene)ruthenium complexes [(p-cymene)Ru(C6H5CHO)][OTf]2 (1) and [(p-cymene)Ru(C6H5C(O)CH3)][OTf]2 (2) is remarkably favorable-the equilibrium constants for these reactions are 1 million times greater than those for uncomplexed benzaldehyde and acetophenone. The addition of methanol to the carbonyl group in the o-anisaldehyde
Intramolecular Hydroalkylation as a Route to Strained Dicationic Bis(arene) [3]Ruthenocyclophanes
作者:Joanne R. Miura、Jarrod B. Davidson、Gloria C. Hincapié、David J. Burkey
DOI:10.1021/om010931z
日期:2002.2.1
Base-promoted intramolecular hydroalkylation of the carbon-carbon triple bond in the ruthenium bis(arene) complexes [(p-cymene)Ru(eta(6)-C(6)H(5)CdropCR)]-[OTf](2) (1, R = Et; 2, R = Ph; OTf = O3SCF3) generates the strained [3]ruthenocyclophane complexes 3 and 4, in which a propenyl (-CH2CR=CH-) group bridges the two arene ligands. The presence of the propenyl bridge results in a bent-metallocene structure for the [3]ruthenocyclophane cation in 4, with an angle of 11.8degrees between the arene ligands.