The effect of adding Crabtree's catalyst to rhodium black in direct hydrogen isotope exchange reactions
Schou S C
J Label Compd Radiopharm 2009; 52(9): 376-381
http://dx.doi.org/10.1002/jlcr.1612
A new catalytic system based on rhodium black using Crabtree's catalyst as an additive for direct hydrogen isotope exchange in aromatic compounds has been investigated. The level of deuterium incorporation can be improved from for example 16 to 93%. The new catalyst mixture tolerates a variety of solvents.