Ph. Leung et al., MOLECULAR RECOGNITION IN THE PALLADIUM COMPLEX PROMOTED ASYMMETRIC-SYNTHESIS OF A KETO-ESTER HETEROFUNCTIONALIZED P-CHIRAL PHOSPHINE, Tetrahedron : asymmetry, 9(17), 1998, pp. 2961-2964
A chiral organopalladium complex promoted asymmetric Diels-Alder react
ion between 1-phenyl-3,4-dimethyl-phosphole and methyl-trans-4-oxo-2-p
entenoate gives the corresponding keto-carboxylate heterofunctionalize
d P-chiral phosphine ligand in which the keto group is stereoselective
ly located in the exo position of the phosphanorbornene skeleton. (C)
1998 Elsevier Science Ltd. All rights reserved.