A radical cascade reaction of 2-aryloxy phenylacetylene with phosphine oxides promoted by K2S2O8 was developed, provided diphosphonyl xanthenes as products. This reaction proceeds under transition metal-free and mild conditions with...
A transition-metal-free multicomponent cascade reaction of α-halogenated ketones, ortho-aminophenols, and aldehydes using a dipeptide phosphonium salt catalyst was developed for the construction of various 2H-1,4-benzoxazines.
Herein, we describe a new transition metal-free Claisen rearrangement for the synthesis of α-substituted 2,4-dienamide. This one-pot, stereoselective three-component cascade reaction affords various polysubstituted 2,4-dienamides in good yields.
A one-pot transition-metal-free, base-mediated synthesis of a novel series of functionalized thieno[2,3-c]coumarins has been developed through a cascade reaction from chromones.
A simple and efficient BPO-promoted free radical-based cascade reaction of biaryl vinyl ethers with easily available unactivated alkanes has been developed.