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Regioselective hydrogenation of 1,2-indanedione yielding
rac
-2-hydroxy-1-indanone was investigated using heterogeneous Pt and Pd as catalysts. Five consecutive experiments were carried out for studying the performance of Pd/Al
2
O
3
. Practical operation under atmospheric pressure of hydrogen at low temperature (40 °C) for 120 min gave the desired product in >99 % regioselectivity, 84 % conversion and 77 % yield, according to GC, using 2 mol% Pd/Al
2
O
3
as the catalyst.
Graphical Abstract