Zm. Wang et al., OSMIUM-CATALYZED ASYMMETRIC DIHYDROXYLATION OF CYCLIC CIS-DISUBSTITUTED OLEFINS, Journal of organic chemistry, 59(23), 1994, pp. 6895-6897
A new class of cis-disubstituted olefins has been found to give good e
nantioselectivities in the asymmetric dihydroxylation reaction using t
he standard PHAL and PYR ligands, all the olefins are conjugated, and
the reacting double bond is endocyclic in a 5-, 6-, 7-, or 8-membered
ring.