Nobuhiro Ito et al.
COMMUNICATIONS
Tilley, R. G. Bergman, J. Am. Chem. Soc. 2002, 124,
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Pt/C, and we are currently investigating the process to
elucidate the mechanism.
Experimental Section
Typical Experimental Procedure
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A substrate (500 mg, 2.8–3.7 mmol) and 10% Pd/C (50 mg,
10 wt% of the substrate) and 5% Pt/C (100 mg, 20 wt% of
the substrate) in D2O (17 mL) were stirred at 1808C in a
sealed tube under an H2 atmosphere for 24 h. The reaction
mixture was diluted with ether (20 mL) and the mixture was
filtered to remove the catalyst. The filtered catalyst was
washed with ether (5 mLꢂ 2). The combined ethereal layer
was washed with H2O (20 mL), dried (MgSO4), and concen-
trated under vacuum. The residue was purified by silica gel
column chromatography or preparative TLC. The D content
1
(%) was determined by H NMR using dioxane or benzene
2
as an internal standard and confirmed by H and 13C NMR
and mass spectrometry.
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Adv. Synth. Catal. 2006, 348, 1025 – 1028