A novel and efficient three-component one-pot condensation method has been described for the synthesis of tetraketones or arylmethylene[bis(3-hydroxy-2-cyclohexene-1-ones)] using Yb(OTf)3-SiO2 and amine as catalytic system ...
A straightforward and efficient method has been developed for the synthesis of quinolines by Yb(OTf)3 catalyzed three-component reaction of aldehydes, alkynes, and amines under microwave irradiation in ionic liquid. A ...
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 ...