D. Carmona et al., CHIRAL RUTHENIUM COMPLEXES AS CATALYSTS IN ENANTIOSELECTIVE DIELS-ALDER REACTIONS - CRYSTAL-STRUCTURE OF THE LEWIS-ACID DIENOPHILE ADDUCT, Chemical communications, (24), 1997, pp. 2351-2352
On the basis of spectroscopic and structural studies a full catalytic
cycle is proposed for the Diels-Alder reaction between methacrolein an
d cyclopentadiene when the new chiral aquo-complexes (R-Ru, S-Ru)-[(et
a(6)-p-cymene)Ru(PN)(H2O)][SbF6](2) {PN = (3aS, hosphinophenyl)-3a,8a-
dihydroindane[1,2-d]oxazole} are used as catalysts.