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2004
Indole derivatives
R 0140
Synthesis of Chiral Sulfinyl-Substituted 1-Indolyl Enones and Asymmetric ConAddition by an Arylcopper Reagent. — The asymmetric conjugate addition
46- 115 jugate
or arylcopper reagents, prepared in situ from Grignard compounds (II) and CuI, to chiral sulfinyl-substituted indolyl enones (I) and (IV) are described. With the 2-sulfinyl-indolyl derivatives (IV), the reaction gives high diastereoselectivities, whereas the similar addition reaction of the 3-sulfinyl derivatives (I) only affords poor selectivities. —
(ARAI*, Y.; KASAI, M.; MASAKI, Y.; Chem. Pharm. Bull. 52 (2004) 6, 733-738;
Gifu Pharm. Univ., Mitahora, Gifu 502, Japan; Eng.) — M. Paetzel
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