Chromatographic resolution of anthryl- and phenanthryl-ethylamines and their use as chiral modifiers for catalytic heterogeneous hydrogenation of ethyl pyruvate
A. Solladie-cavallo et al., Chromatographic resolution of anthryl- and phenanthryl-ethylamines and their use as chiral modifiers for catalytic heterogeneous hydrogenation of ethyl pyruvate, ENANTIOMER, 6(4), 2001, pp. 245-249
Efficient synthesis (1 to 2 steps and 95-97% overall yields) and efficient
chiral chromatographic resolution of rac-anthryl-ethylamine (6a) and phenan
thryl-ethylamine (7a) (35-38% of each enantiomers) have been performed. Tes
ted as chiral modifiers for catalytic heterogeneous hydrogenation of ethyl
pyruvate, (+)-6a and (+)-7a led to 12-30% ee and the monobenzyl derivative
(-)-7b provided 40% ee.