S. NISHII

Diastereoselectivity of the conjugate addition of organocopper reagents to .gamma.-alkoxy .alpha.,.beta.-unsaturated carbonyl derivatives. Importance of the reagent type and the double-bond geometry

Yoshinori Yamamoto, Yukiyasu Chounan, S. NISHII et al. · Journal of the American Chemical Society · 1992 · 102 citations

Engineering, Biochemistry, Natural Sciences +12

Importance of the timing of bond breaking and bond making in acetal templates. Enantiodivergent synthesis of steroidal side chains

Yoshinori Yamamoto, S. NISHII, J. Yamada · Journal of the American Chemical Society · 1986 · 70 citations

Bond Breaking, Biosynthesis, Molecular Sciences +14

Very high chemoselective, regioselective, and E-stereoselective 1,3-chirality transfer involving reaction of acyclic (E)- and (Z)-.gamma.-mesyloxy .alpha.,.beta.-enoates and organocyanocopper-trifluoroborane reagents. Efficient synthetic routes to functionalized chiral .alpha.-alkyl (E)-.beta.,.gamma.-enoates and (E)-allylic alcohols with high optical purity

Toshiro Ibuka, Miwa Tanaka, S. NISHII et al. · Journal of the American Chemical Society · 1989 · 68 citations

Chemical Engineering, Chiral .Alpha.-alkyl, Engineering +7

Organocyanocopper-trifluoroborane mediated 1,3-chirality transfer reaction of .gamma.-(mesyloxy)-.alpha.-alkyl .alpha.,.beta.-enoates for the construction of chiral quaternary carbon centers with high optical purity

Toshiro Ibuka, Naoshige Akimoto, Miwa Tanaka et al. · The Journal of Organic Chemistry · 1989 · 66 citations

Asymmetric Catalysis, Inorganic Chemistry, Chemical Engineering +10

Organocopper-Lewis acid mediated 1,3-chirality transfer of acyclic .gamma.,.delta.-dioxygenated (E)-.alpha.,.beta.-enoates. Regio-, (E)-stereo-, and diastereoselective .alpha.-alkylation approaching 100% selectivity

Toshiro Ibuka, T. NAKAO, S. NISHII et al. · Journal of the American Chemical Society · 1986 · 61 citations

Acyclic .Gamma., Asymmetric Catalysis, Engineering +12