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1992 stereochemistry stereochemistry (general, optical resolution) O 0030 26 -053 Enantioselective Conjugate Addition with Chiral Amidocuprates. Part 3. Studies on the Synthetic Optimization of Mapp-Cuprates. -The influence of Cu(I) salt, solvents, Tms-Cl and ligand e.e. on the reactivity and selectivity of cuprate (I) in the conjugate addition to 2-cycloheptenone (II) is investigated (22 entries). The best result is obtained under the conditions shown in the scheme. -(ROSSITER, B. E.; MIAO, G.; SWINGLE, N. M.; EGUCHI, M.; HERNANDEZ, A. E.; PATTERSON, R. G.; Tetrahedron: Asymmetry 3 (1992) 2, 231-234; Dep. Chem., Brigham Young Univ., Provo, UT 84602, USA; EN)