Ga. Crispino et al., IMPROVED ENANTIOSELECTIVITY IN ASYMMETRIC DIHYDROXYLATIONS OF TERMINAL OLEFINS USING PYRIMIDINE LIGANDS, Journal of organic chemistry, 58(15), 1993, pp. 3785-3786
Bis-cinchona alkaloid substituted pyrimidine ligands were found to giv
e improved enantioselectivity in the osmium-catalyzed asymmetric dihyd
roxylation (AD) of monosubstituted terminal olefins.