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An efficient total synthesis of (−)-stenine in 14 steps with an overall yield of 5.9% is described. The key feature is the construction of the densely substituted cyclohexane core of stenine with two consecutive asymmetric Michael additions.
A practical and high-yielding protocol for the dehalogenation of aromatic halides is presented. In the presence of palladium acetate, triphenylphosphine, and potassium carbonate, a number of highly functionalized aromatic halides as well as α-haloketones were dehalogenated with alcohols as hydrogen donors.
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