Synthetic Communications

Antimony Trichloride–Catalyzed Michael Addition of Indoles to the α, β??Unsaturated Ketones

G Maiti, P Kundu

Index: Maiti, Gourhari; Kundu, Pradip Synthetic Communications, 2007 , vol. 37, # 14 p. 2309 - 2316

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Citation Number: 23

Abstract

Abstract Indoles undergo conjugate addition with α, β??unsaturated ketones in the presence of a catalytic amount of antimony trichloride under refluxing condition to afford the corresponding Michael adduct in excellent yields. The substitution on the indole ring occurred exclusively at 3??position without a trace of any N??alkylated products.