434
L. M. Martínez-Prieto and P. W. N. M. van Leeuwen
Table 12.3
Oxygen and phosphorus donor-stabilized Ru NPs synthesis and catalytic applications
Metal precursor
Stabilizing ligand
Synthetic
approach
Catalysis
Comments
Refs.
Ru(COD)(COT)
Alcohols (MeOH,
nPrOH, iPrOH,
pentanol, heptanol)
H
2 , 25 ºC, 24 h,
neat alcohol;
THF/MeOH
mixtures
hydrogenation of benzene to
cyclohexane
Polarity and alkyl
chain length control
the growth of the
NPs.
[40, 41, 43]
RuCl
3
·3H 2 O
Cyclodextrins
(Me-CDs)
Reduction by
NaBH
4
Hydrogenation of olefins, ketones and
arenes
Me-CDs acts as
stabilizer,
phase-transfer agent
and reactant host
[44]
Ru(COD)(COT)
Ethanoic acid
H
2 , 25 ºC, 24 h,
pentane
None
Promising catalyst
for HER
[46]
RuCl
3
·3H 2 O
TPPTS
H
2 (50 bar), 120
ºC, 4 h, ethanol
Asymmetric hydrogenation of
aromatic ketones
(1R, 2R)-DPENDS
and ILs as reaction
medium
[47]
Ru(COD)(COT)
dppb
H
2 , 25 ºC, 24 h,
THF
C–C activation/Hydrogenations/CO
hydrogenation/isotopic exchange
(H/D)
Selective poisoning
of Ru-dppb increases
their selectivity
[42, 48–52]
Ru(COD)(COT)
PPh
3
H
2 , 25 ºC, 24 h,
THF
Hydrogenation of aromatic ketones
Their activity and
selectivity was
compared with Rh
NPs
[53]
(continued)