A simple and efficient thia-Michael addition to α, β-unsaturated ketones catalyzed by Yb(OTf)3 in [bmim][BF4]
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Date
2009
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Publisher
Taylor & Francis
Abstract
Yb(OTf)3 in an ionic liquid [bmim][BF4] has been described as an efficient catalyst for the thia-Michael addition of thiols to α,β -unsaturated ketones to give β -aryl-β-mercapto ketones in 82–94% yield and the catalyst along with ionic liquid was recycled and reused.
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Keywords
Chemistry, Ionic liquid, Thia-Michael addition, Ytterbium triflate, Rare-earth metal triflates, Lewis acids