Abstract
A transition-metal free synthetic strategy has been developed for the direct synthesis of ortho-formyl substituted allyl aryl ethers via a cascade three-component coupling of arynes, activated alkene and N,N-dimethylformamide. The reaction proceeds via C-O and C-C bond cleavage as well as C-C and two new C-O bond formations in a single reaction vessel. The methodology provides a good yield of ortho-formyl substituted allyl aryl ethers. Moreover, the synthetic strategy has been utilized for the one-pot synthesis of 2H-chromen-2-ol derivatives.
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