The easily synthesis of dihydrofuronaphthoquinones and C-alkenylated naphthoquinones has been investigated through the radical oxidative cyclization of 2-hydroxy-1,4-naphthoquinones and thiophene or furan substituted alkenes catalyzed by manganese(III) acetate. The corresponding heteroaryl substituted dihydrofurans and naphthoquinones have been isolated in good yields.
O. Alagöz, M. Yılmaz, A. T. Pekel, C. Graiff and R. Maggi, RSC Adv., 2014, 4, 14644 DOI: 10.1039/C3RA48015A
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